Lost in Space - Book 5: Lost In Space - Penny
Chapter 25: Bridge Chaos
Maureen stood on the bridge in her suit, helmet tucked under one arm, giving final instructions before she and Don headed out to the ridge.
“Will, you’re acting commander while I’m gone,” she said firmly, placing a hand on his shoulder. “Keep the repairs moving, monitor the probes, and get that relay ready. I’m counting on you.”
Will nodded, trying to look more confident than he felt. “I’ve got it, Mom.”
Maureen gave him a tight smile, then she and Don disappeared down the corridor toward the Chariot.
Not long after they left, the electrical storm slammed into the Jupiter 2 with vicious force. Heavy winds howled against the hull. Lightning strobed across the sky. Systems flickered and groaned. External work became impossible. Even internal repairs were a nightmare of power surges and failing stabilizers.
Will stayed on the bridge through the night, eyes burning as he fought to reestablish a stable comm link to the remote relay. Around 0300, he noticed Penny in the corner, stubbornly trying to reroute a secondary array. He appreciated the effort, but he knew it was useless right now.
“Penny,” he called, voice rough with exhaustion. “It’s pointless until the storm eases. Go get some rest. Report back in the morning.”
She looked like she wanted to argue, but finally shrugged and left.
---
Morning came. The storm had calmed to an angry rumble, but the damage was done.
Will was still hunched over the main console, hair disheveled, eyes bloodshot, running on nothing but caffeine and sheer stubbornness. He hadn’t slept.
The hatch hissed open.
Penny strolled onto the bridge wearing almost nothing — just an oversized sleep shirt that barely reached the bottom of her ass and a pair of tiny blue panties clearly visible underneath. Her long, bare legs looked endless, auburn hair tousled in that just-rolled-out-of-bed way that made his exhausted brain short-circuit.
Will’s gaze lingered far too long — tracing the smooth expanse of her thighs, the way the shirt clung to the swell of her breasts, the teasing flash of blue cotton when she moved.
Penny caught him staring. A slow, wicked grin spread across her face.
“Eyes up here, genius,” Penny drawled, her voice dripping with playful sass. She leaned against the console, deliberately shifting her weight so the already-short hem of her top rode higher. “I’m not dressed like this for your enjoyment… unless that is the sort of thing you like.”
Will’s face burned crimson. The combination of exhaustion, guilt, and the sudden, unwanted rush of heat flooding his body made his temper snap.
“Penny, what the hell?” he barked, sharper than he intended. “We’re in the middle of a goddamn crisis and you show up dressed like you’re auditioning for one of your trashy novels? For fuck’s sake, put some clothes on!”
Penny blinked once, then burst out laughing — bright, unbothered, and thoroughly amused.
“Wow. Someone woke up on the wrong side of the command chair.” She sauntered closer, hips swaying with exaggerated teasing. “A good night’s sleep did wonders for me. Unlike you, grumpy. You look like shit, by the way.”
She reached into the nearby med kit, cracked open a stim-pack, and tossed it to him with a flick of her wrist. “Here. You clearly need this more than I do.”
Will caught it one-handed and jabbed it into his arm with a grimace. The stimulant hit hard and fast — a jolt of fire racing through his veins, sharpening his focus, quickening his heartbeat, and flooding his system with renewed energy. His mind cleared almost instantly, though the flush on his face refused to fade.
Penny watched him with a satisfied little smirk, clearly enjoying the effect she had on him.
“While you were playing hero all night,” Penny continued, deliberately bending over the pilot console. She crossed her long legs slowly, her ass lifting and arching as her shirt rode up high, giving Will a perfect, unobstructed view of her pussy pressed tightly against the thin, lacy fabric of her panties. His body instantly responded. Heat flooded his groin as he stared, unable to tear his eyes away. He shifted uncomfortably in his seat, trying to hide the sudden, aching hardness growing in his pants. He could have sworn he saw a faint, glistening wet line soaking through the delicate material as she spoke.
“I actually came up with an idea,” she purred, glancing back at him over her shoulder with a sly, bratty smile. “That old emergency flare beacon we haven’t used since Kepler-9. Combined with some alien signal routing tricks I picked up from watching Robot… I think I can punch a message through to Dad and Judy directly to the research station.”
Will stared at her, momentarily stunned. He couldn’t decide what was more intoxicating, her provocative beauty or the audacity of her brilliant idea.. “You… really?”
“Watch and learn.” She leaned forward, fingers flying across the comm panel with surprising skill. Using the ancient flare frequency and a clever piggyback on residual alien tech signatures, she opened a channel.
Static crackled. Then Judy’s voice came through, faint but clear.
“Dad…Judy, are you there?”
“Penny? Is that you?”
Penny shot Will a triumphant smirk. “Finally! We have been trying to hail you for the last 24 hours! Are you both okay?”
Judy responded, "Yeah, we are okay. I got a little banged up but Daddy is taking care of me."
Penny breathed out a sigh of relief, "Glad to know you are okay! I hate to break it to you but I have bad news. There are armed robot drones on their way to your location. Will has a plan to divert them but you need to make sure they don't detect you."
"Thanks for the heads up,” Judy said.
Will gave them a brief update about Don and Maureen and the electrical storm. He kept the details to a minimum but made sure they understood how spread out the team was.
“Great job, Will. I am not sure what we would do with you. You’re doing a great job son,” John chimed in, “We will shut down auxiliary power and keep an eye out for those drones. As soon as they are clear we will head to the Chariot and join you on the Jupiter. Let’s keep this communication line clear"
“Roger that!” Will replied. The signal was interrupted by static and then shut off.
The moment the conversation was over Will sat back, genuinely impressed. “That was… really good, Penny.”
He felt a wave of guilt crash over him for barking at her earlier. “Listen… I’m sorry about—” He turned to face her properly, but the chair was empty. She had already slipped out.
Will deflated, shoulders slumping. “Damn it…”
The comm chirped. Don’s voice came through from the Chariot, wind-whipped but steady. “Array is up and running on the ridge. Ready when you are, kid.”
Will straightened. “Copy that. Executing decoy now.”
He triggered the final sequence. The false engine signature bloomed brightly off the derelict Jupiter’s hull, boosted through the Chariot’s relay. Now, all he could do was sit and wait.
Will slumped back in the command chair, rubbing his face. The bridge felt too quiet. The guilt over snapping at Penny sat heavy in his chest.
He had to find her and apologize. Properly.
Chapter 26: The Weight of Useless
Will remained on the bridge for over an hour, eyes locked on the long-range scanner. The red probe vectors had fully committed to the derelict Jupiter’s false signature. He watched them drift farther away, triple-checking every reading, every possible sensor trick the alien machines might pull. Only when he was absolutely certain the bait had worked did he finally allow himself to breathe.
The bridge felt too quiet. The guilt over how he had barked at Penny refused to fade. It gnawed at him, deep and relentless.
She used to be his best friend. The one person who could make him laugh no matter how bad things got. Now every time she walked into a room, his eyes betrayed him — tracing the curve of her legs, the sway of her hips, the way those tiny shorts rode up when she stretched. She had become a sexual object in his mind, and it made him sick with guilt. She was his sister. His older sister. But she was also the prettiest girl he had ever known. His hormones were going wild, and he hated himself for it.
But that was no excuse for being cruel to her.
He stood up, rubbed his tired eyes, and headed for her quarters. As he walked the corridor, faint golden wisps drifted lazily through the air, sparkling in the emergency lighting.
Will paused, watching one dissolve against his arm. Probably kicked up by the storm, he thought. Harmless, he remembered his mother saying. He’d run a full atmospheric scrub later. Right now, apologizing to Penny mattered more.
He stopped outside her door, took a deep breath, and stepped inside.
Penny was curled up on her bunk in the oversized sleep shirt, knees drawn tight to her chest, face buried against her arms. Soft, quiet sobs shook her shoulders.
The sight broke something in Will’s chest.
She looked up when the door hissed shut. Her eyes were red-rimmed, but the moment she saw him, they hardened into a glare.
“What do you want now?” she snapped, voice thick with tears and anger.
Will slumped, shoulders heavy. “Penny… I’m sorry.”
She straightened slightly, surprised by the genuine remorse in his voice.
He continued, words tumbling out. “I’ve been a terrible brother. We used to be so close. Best friends. And now…”
“Ever since that damn Robot came into our lives, you barely pay attention to me anymore,” she cut in, sass cutting through the hurt. “It’s always Robot this, genius plans that. I’m just… in the way. ”
Will nodded, guilt twisting deeper. “I know. And I’m sorry for my part in it. I didn’t intend to ignore you.”
Penny exhaled sharply, turning her face away. “Look, I get it. Everyone is stressed. Then the genius brother and his robot saves the day again. Everyone praises the perfect Will Robinson. Meanwhile I’m just the fuck-up daughter who can’t do anything right.”
He saw the tear slip down her cheek before she could hide it. Will crossed the room and sat on the edge of her bed, gently placing a hand on her shoulder.
“I don’t think you’re a fuck-up, Penny. Not even close.”
“Yeah?” She whirled on him, eyes flashing. “Then why do you ignore me? Every time I walk into a room you look away like I’m not even worth your time!”
“No… that’s not it. I… I…” He stumbled, face heating.
“You what?” she pressed, voice rising. “Is Mister Perfect having trouble coming up with a lie to make his bitchy sister feel better?”
The dam inside Will finally burst.
“Damnit, Penny!” he erupted, voice raw. “I’m not perfect! I don’t look at you because every single time I see you I have these dirty thoughts about how badly I want to fuck my own sister!”
The words hung in the air like a thunderclap.
Penny’s jaw dropped, eyes wide with shock.
Will’s face turned beet red. He couldn’t believe he had actually said it out loud. His heart hammered violently in his chest as the confession echoed between them, impossible to take back.
“You want to what?” Penny stared at him, eyes wide with disbelief.
Will scrambled, face burning crimson. “Penny, it’s not— I mean, it’s not a bad thing. You just look so pretty, and with Robot always saying the chances of finding another human colony are basically zero, I just… I started thinking things I shouldn’t—”
She cut him off, voice sharp but laced with dark amusement. “Did you just say you wanted to fuck me?” She sat up straighter, staring at him like he’d grown a second head. “What the fuck is wrong with you, Will?”
He flustered badly, rubbing the back of his neck, unable to meet her eyes. “It’s… oh god, Penny… you know when you wear clothes like that and you bend over and I can see your panties… I just start getting… well, you know.”
A slow, wicked grin spread across Penny’s face. The hurt in her eyes shifted into something hotter, more dangerous — pure bratty mischief.
“You mean… like *this*?”
She rolled onto her hands and knees on the bunk, arching her back deeply and pushing her ass toward him. The oversized sleep shirt rode up completely, putting her tiny blue panties on full display. She looked back over her shoulder, lips curled in teasing challenge.
“So when you see my ass and panties like this, horn dog… what exactly do you want to do?”
Will’s mouth went dry. His cock throbbed painfully in his pants at the sight of his sister presenting herself like that — exactly how he’d fantasized for months.
Before he could answer, a sharp chirp filled the room. The Chariot security feed notification lit up on her data pad — an external cargo camera had activated and was transmitting.
“Is something wrong with Mom?” Penny muttered, reaching for the pad, still on all fours.
She tapped play.
The high-definition feed resolved instantly.
Maureen was on her knees in the cargo bay, completely naked, while Don gripped her hips and fucked her hard from behind. Their mother’s full breasts bounced wildly with every brutal thrust. Maureen’s face was flushed with pleasure, mouth open in loud, broken moans as she begged.
“Fuck… yes, Don! Harder— please, fuck your dirty little slut!”
“Holy *shit*,” Penny breathed, eyes glued to the screen. “Do you see this, Will?”
She leaned forward, transfixed, her ass still raised high toward her brother, completely forgetting the compromising position she was in. The sight of their composed, commanding mother getting railed senseless — begging to be used — was filthier than anything in her trashy novels. It was shockingly, unbearably hot.
Golden wisps drifted through the room, dissolving against their heated skin.
Then Penny felt it.
Will’s hands settled firmly on her hips. His breath ghosted over her ass as he leaned in. He pressed a hot, open-mouthed kiss to one cheek, then the other. Before she could react, he hooked a finger into the crotch of her tiny blue panties and pulled them roughly to the side.
“Oh *fuck*—” Penny shivered violently as Will’s tongue dragged slowly up her soaked slit.
He licked her like she was the sweetest thing he’d ever tasted — long, hungry strokes from her dripping entrance to her swollen clit. A low, desperate groan vibrated against her pussy as he finally gave in to months of forbidden hunger.
Penny’s arms trembled, barely holding her up. “Will… oh my god… you’re actually licking my pussy…”
She should have pulled away. She should have called him crazy.
Instead, she moaned loudly and pushed back against his face, eyes still locked on the feed where Don was pounding their mother into submission.
The golden strands continued to drift silently around them, accelerating everything.
Chapter 27: Forbidden Taste
Will’s tongue worked hungrily between Penny’s soaked folds, long, greedy licks that made her shiver. He groaned deeply against her pussy, the vibration sending sparks up her spine.
“Fuck, Penny… you taste so fucking good,” he rasped, voice thick with lust. “God damnit, I’ve imagined you moaning like this for so long.”
Two thick fingers joined his tongue, sliding deep into her tight heat. Penny gasped sharply, gripping the bedsheets as her back arched.
“Oh god— Will!” Her hips rocked back instinctively, pushing against his fingers and mouth.
“Just like this?” she moaned, voice teasing even as it broke with pleasure. “Is this how you imagined finger-fucking your big sister?”
Will bit down on the soft flesh of her ass, making her yelp. “Not exactly like this…” He curled his fingers inside her, stroking that perfect spot while his tongue flicked rapidly over her swollen clit. “In my dreams you were completely naked so I could suck on those beautiful tits while I fucked you with my fingers.”
Penny’s moans grew louder, shameless. The wet, filthy sounds of his fingers plunging into her mixed with the loud sex noises still blaring from the data pad — Maureen screaming for Don to fuck her harder.
“Oh god, Commander… is that an order?” she whimpered, half-teasing, half-desperate.
Will grinned against her skin, eyes dark. He pulled his fingers out with a wet sound and slapped her ass sharply.
“Damn right it is.” His voice had taken on that commanding tone he used on the bridge. “As acting commander, I want you to take off your shirt and face me, Penny. Now.”
She whimpered at the loss of his fingers but obeyed. Turning around on her knees, she crossed her arms, grabbed the hem of her oversized sleep shirt, and pulled it slowly over her head. Her full, perky breasts spilled free, pink nipples already hard.
Will stood up, drinking in the sight of his half-naked sister. “Fuck… you’re so pretty, Penny.”
He stepped closer, hands working his pants open. “Pull them down.”
Penny looked up at him, heart racing. This was really happening. Her little brother. She hooked her fingers into his waistband and tugged his pants and underwear down in one motion.
His massive, thick cock sprang free, heavy and rock-hard, the flushed head already leaking precum. It was bigger than she expected — long, girthy, and throbbing inches from her face.
“Holy shit, Will…” she breathed, eyes wide. “You’re huge.”
He wrapped a hand around the base, stroking himself once as he looked down at her. “Suck it.”
Penny hesitated, staring at her little brother’s cock. “Will… this is… fuck, you’re my little brother…”
His voice dropped, firm and commanding. “That’s an order, Penny.”
Something hot and electric twisted low in her belly. The golden strands drifting through the room made her skin burn with need. She leaned forward, parted her lips, and took him into her mouth.
Will groaned deeply as her warm, wet mouth enveloped the head of his cock. Penny sucked tentatively at first, then deeper, her tongue swirling around the thick shaft as she looked up at him with wide, lust-filled eyes.
Chapter 28: Surrender
Will groaned deeply as Penny’s warm mouth worked up and down his thick cock. He threaded his fingers into her tousled auburn hair, not forcing her, but guiding her rhythm as she sucked him with growing enthusiasm.
“Fuck, Penny… you’re such a good cocksucker,” he rasped, voice rough with lust. “Look at you… my perfect big sister sucking her little brother’s cock like you were made for it.”
Penny moaned around his shaft, the vibration shooting straight through him. One of her hands slipped between her own thighs, rubbing her clit in tight circles as she bobbed on him. The wet sounds of her fingers working her soaked pussy only made Will’s cock throb harder in her mouth.
He couldn’t take it anymore.
Will gripped her hips and pulled her upward, maneuvering her until she was straddling his face. In one smooth motion he brought her dripping pussy down onto his mouth while her lips stayed wrapped around his cock — a perfect, filthy 69.
“Oh my god— Will!” Penny cried out around his thickness as his tongue plunged into her.
He devoured her hungrily, licking long and deep, sucking on her swollen clit while his fingers joined in, thrusting into her tight heat. Penny’s hips rocked desperately against his face, grinding her pussy against his tongue as she sucked him harder, taking him deeper into her throat.
The harder she moaned around his cock, the more aggressively he ate her. His hips started thrusting up, gently fucking her face while he moaned into her dripping folds. The room filled with wet, obscene sounds — her slurping, his licking, both of them moaning in unison.
Will gripped her perfect round ass with both hands, spreading her cheeks and holding her down firmly against his mouth. He sucked hard on her clit and curled two thick fingers deep inside her, stroking that sensitive spot relentlessly.
“Will— oh fuck! Yes! Right there!” Penny begged, voice muffled around his cock. “Don’t stop— please— I’m so close!”
He held her in place and devoured her without mercy. His tongue flicked rapidly over her clit while his fingers pumped faster. Penny’s thighs began to shake violently around his head.
She came with a shattered scream, the sound vibrating down his shaft as her pussy clenched and gushed against his tongue. Her whole body convulsed on top of him, hips jerking wildly as pleasure tore through her.
Will kept licking her gently through the orgasm, savoring every twitch and whimper, until she was a trembling, oversensitive mess.
“Fuck… I love this ass,” he growled, kissing and nipping at her cheeks as she tried to catch her breath.
Penny let out a breathless giggle, still shaking. She crawled forward on shaky thighs, her quivering thighs straddle his hips. Her soaked pussy glided slowly along the length of his thick, rock-hard cock, coating him in her wetness.
Will stared at his beautiful sister as her hips rolled. Her blue panties pulled to one side to give him the perfect view of her dripping wet cunt and tight little asshold. Fuck she was so damn hot. HIs cock jumped in excitement, eager to enter her.
“Fuck… you’re such a naughty boy, Will,” she teased, voice husky. Her eyes sparkled with lust and delight as she rocked her hips, sliding her slick folds up and down his massive shaft.
Will moaned, hands gripping her thighs. “Damn it, Penny… you’re so fucking wet…so fucking beautiful.”
“Mmmm… little brother… complements will get you everywhere with me,” She purred.
She reached down between them, wrapped her fingers around his thick cock, and aimed the swollen head at her entrance. With a wicked little smile, she slowly sank down onto him — inch by thick, stretching inch — like a stripper sliding down a pole.
Her mouth fell open in a long, broken moan as he filled her, stretching her tight walls open around his girth. The feeling of him sliding so deep inside her made her eyes flutter and her breath hitch.
Chapter 29: Riding the Genius
Penny sank down slowly onto Will’s thick cock.
Her tight, soaked pussy stretched obscenely around his girth, the pink lips parting wide as she took the first few inches. She let out a shaky breath, her thighs trembling as she paused, adjusting to the intense stretch.
Then she lifted slightly — just enough to feel the drag of every ridge along her sensitive walls — before sinking down again, taking him a little deeper. Her thighs shook harder with the effort. She repeated the motion, slow and deliberate, savoring every inch as she worked herself onto him.
Will watched, mesmerized, his hands gripping her hips tightly. From this angle the view was perfect — her pretty pink pussy stretched wide around his thick shaft, her juices glistening and coating him as she gradually took more and more.
“Fuuuuck, Will…” she gasped when she finally bottomed out, her ass resting flush against his thighs. Her voice was breathy, almost overwhelmed. “You’re so goddamn thick… I can feel you in my stomach.”
Will groaned deeply, the sight and feeling of her completely impaled on him driving him wild. He reached down and spread her ass cheeks with both hands, opening her wider so he could see every intimate detail — the way her pussy lips gripped him so tightly, the way her tight little asshole winked above where they were joined.
Penny let out a long, shaky moan as she began to rock her hips — slow, sensual circles that made her pussy glide up and down his shaft. Her juices dripped down his cock with every movement, coating his balls.
Will’s grip on her ass tightened, his thumbs spreading her even further as he watched her fuck herself on him.
“God, Penny…” he breathed, voice hoarse. “Look at you… you have such a beautiful ass… it looks so fucking perfect taking my cock.”
She smirked down at him even as her hips rolled in a slow, filthy circle, teasing him. “Oh yeah? You like watching your big sister’s ass bounce on your cock, you dirty little pervert?”
Penny started riding him properly — lifting up until just the head remained inside her, then slamming back down. Her full breasts bounced with every movement as she picked up speed.
“Fuck— you’re so deep,” she moaned, still trying to keep her bratty tone. “I can’t believe my little brother has such a huge dick. You’ve been hiding this monster the whole time?”
Will’s eyes were locked on where they were joined, watching her pussy swallow every thick inch on every downstroke. He thrust up to meet her, making her jolt and cry out.
Penny’s head fell back with a loud scream of pleasure. “Oh my god— Will! Yes! Just like that— fuck!”
He groaned, hands squeezing her ass harder. “You feel so fucking tight, Penny. So wet. You love this, don’t you? Riding your own brother’s cock.”
She bit her lip, trying to stay sassy even as her hips moved faster. “M-maybe… Fuck, you’re stretching me so good. I hate how much I love it, you horny little genius.”
Will watched in awe as his long-held fantasy played out in front of him. His beautiful, bratty older sister bouncing on his cock, moaning and cursing, her pussy gripping him like a vice. Every time he thrust up hard, she let out a sharp, delighted scream.
He couldn’t take it anymore.
The need to claim her completely overwhelmed him. He suddenly sat up, wrapping one arm around her back and flipping their positions in one smooth motion. Penny yelped as her back hit the bed, Will now on top, still buried deep inside her.
His eyes were dark, hungry, and possessive.
Will crashed his lips against Penny’s in a fierce, claiming kiss as he drove into her with deep, powerful strokes. Their tongues tangled, wet and desperate, while her legs wrapped tightly around his waist, pulling him impossibly deeper. Her clit rubbed against his grinding hips with every thrust, sending sparks through her body.
“Fuck… what are you doing to me… oh god…” she gasped between kisses, voice breaking.
He grinned against her mouth, each broken word earning her another hard plunge.
“If you don’t know that,” he teased, voice low and playful, “then maybe you’re not as smart as I thought you were.”
She laughed breathlessly, trying to retort, “You little—”
Just then Will slammed his cock deep into her, and her words melted into a long, drawn-out moan. “...Fuuuuckkkkk!”
Will laughed low and dark, hips snapping forward to punctuate every syllable. “Tell me more, Penny. I need to hear it.”
“Will, oh god you're amazing,” she moaned, voice cracking as he bottomed out again. “Your cock feels so good…”
Penny’s mind was splintering — pleasure, humiliation, and raw need twisting together until she couldn’t tell them apart. She couldn’t believe this was happening. Couldn’t believe how much she loved it… loved him doing this to her.
“You’re a good girl, Penny,” he growled, voice low and rough. “I love hearing you tell me how much you love this. I’m going to turn you into my little fuck toy.”
Before she could fire back with another sassy remark, Will pulled back and slammed into her hard — deep, powerful strokes that made her scream.
“Will— oh fuck! Yes!” she cried out, legs wrapping around his waist. “Don’t stop— fuck me harder!”
He pounded into her relentlessly, the wet slap of skin on skin filling the room alongside her loud, broken moans and the ongoing sounds of their mother getting fucked on the data pad.
“Say it,” he demanded between thrusts. “Tell me you love your brother’s cock.”
“I love it!” Penny screamed, nails raking down his back. “I love my little brother’s thick cock— fuck— you’re ruining me and I love it!”
Will’s hips snapped forward faster, driving her deeper into the mattress. His dream had finally come true, and he wasn’t going to stop until Penny was completely, utterly his.
Will crashed his lips down onto Penny’s in a hungry, desperate kiss. Their tongues met instantly, wet and passionate, sliding together as he kept thrusting deep inside her. The kiss was messy, needy, full of years of pent-up longing.
His cock slid in and out of her soaked pussy with long, powerful strokes, stretching her perfectly. He looked down at her flushed face, eyes dark with lust as his hands found her full breasts. He squeezed them greedily, thumbs brushing over her hard pink nipples before pinching and rolling
them between his fingers.
“Will— oh fuck— yes!” she screamed, breaking the kiss as her head fell back against the pillow.
“God, Penny… I’ve wanted this for so fucking long,” he growled, never breaking eye contact as he fucked her harder. “Every time you bent over in those tiny shorts I wanted to rip them off and bury my cock in this tight little pussy. I used to jerk off thinking about fucking you… imagining how you’d scream for me.”
Penny’s eyes rolled back, a loud, broken moan tearing from her throat. His dirty words hit her like fuel on a fire.
“I wanted to bend you over the console on the bridge,” he continued, voice rough as he pounded into her, “and fuck you until you couldn’t walk. I wanted to fill you up with my cum and watch it drip down your thighs while you tried to act like nothing happened.”
“Oh my god— Will!” she cried out, her pussy clenching hard around him. Her legs tightened around his waist as her hips bucked up to meet every brutal thrust. “Fuck— I didn’t know… I didn’t know I wanted me so bad!”
She couldn’t believe how good he made her feel. Every deep stroke, every grind against her clit, every filthy confession pushed her closer to the edge. The golden strands drifting through the room only made everything more intense — every nerve ending felt alive, every sensation amplified.
Will leaned down, sucking one of her nipples into his mouth while still fucking her relentlessly. He pulled back just enough to look into her eyes again.
“You’re mine now, Penny,” he rasped, hips snapping forward. “This pussy is mine. Say it.”
“I’m yours— fuck— my pussy is yours!” she screamed, voice cracking with pleasure. Her nails dug into his back as her orgasm built like a tidal wave. “Will— I’m so close— don’t stop— please!”
He fucked her harder, grinding deep on every thrust, his pelvis rubbing perfectly against her swollen clit while his cock battered that sensitive spot inside her.
“Cum for me, baby,” he growled against her lips. “Cum on my cock like the dirty girl you are.”
Penny shattered.
Her entire body seized up as the orgasm crashed through her. She screamed his name, loud and raw, her pussy clamping down around him in powerful, rhythmic pulses. Her legs shook violently around his waist as wave after wave of pleasure tore through her, soaking his cock and thighs.
Will groaned loudly, fucking her through her orgasm, savoring every clench and whimper until she was a trembling, gasping mess beneath him.
Chapter 30: Full Surrender
Will kept thrusting through Penny’s orgasm, fucking her deep and steady as her walls fluttered and clenched around him. Her legs were still locked tightly around his waist, pulling him in with every stroke.
“Will… oh god… I can’t… I can’t believe how good you feel,” she gasped, voice wrecked.
He kissed her again — deep, claiming, tongues sliding together — then pulled back just enough to flip her onto her stomach. He yanked her hips up high, spreading her knees wide so her ass was presented perfectly for him. Without hesitation, he slammed back inside her in one powerful thrust.
Penny screamed into the pillow, fists clutching the sheets. “Fuck— yes!”
Will gripped her hips hard and started pounding into her from behind, deep, relentless strokes that made her ass ripple with every impact. The wet slap of skin on skin mixed with her loud, broken moans and the ongoing sounds of their mother getting fucked on the data pad.
“You’re so fucking tight,” he growled, one hand sliding up her back to fist her hair. “This pussy was made for me, Penny. My perfect bratty sister… taking every inch like a good girl.”
Penny’s voice cracked as he hit a new, devastating angle. “Will— you’re so deep— fuck— you’re ruining me!”
He leaned over her, chest pressed to her back, lips brushing her ear as he fucked her harder. “Tell me, Penny. Tell me how much you need this. How much you need your brother.”
She broke completely.
“I need it— I need you!” she sobbed, pushing back desperately against his cock. “I’ve been so lonely… so fucking lonely… and you make me feel everything. You see me. You want me. Please don’t stop— I’m yours, Will. I’m all yours!”
Her full emotional surrender hit him like a drug. Will groaned loudly, hips snapping forward with renewed force. He fucked her hard and deep, pounding into her with everything he had, chasing his own release.
Penny screamed, voice hoarse and raw. “Yes— fuck me harder! You’re such a man, Will— my little brother is such a fucking man! No one’s ever fucked me like this— oh god— you’re destroying me and I love it!”
Those words snapped the last of his control.
Will gripped her hips bruisingly tight and railed her with brutal, punishing strokes. The bed creaked violently beneath them. Penny’s screams turned incoherent, her body shaking as another orgasm built fast and violent.
“I’m gonna cum, Penny,” he growled against her neck, voice strained. “I’m going to fill my sister’s pussy.”
“Yes— cum inside me!” she cried, pushing back to meet every thrust. “Fill me up— please— I want it!”
With a deep, guttural groan, Will buried himself to the hilt and came hard.
Thick, hot ropes of cum erupted deep inside her, pulse after powerful pulse as he flooded her womb. He kept thrusting through his orgasm, grinding deep, forcing every drop into her as her own climax crashed over her again. Penny screamed his name, her pussy spasming wildly around his cock, milking him for everything he had.
They stayed locked together like that for a long moment — trembling, panting, bodies slick with sweat. Will finally collapsed over her, still buried deep, wrapping his arms around her protectively as he kissed the back of her neck, her shoulder, anywhere he could reach.
“I’ve got you,” he whispered, voice hoarse but tender. “I’ve always got you, Penny.”
She turned her head just enough to look at him, eyes glassy with overwhelmed emotion. Tears of pleasure and release slipped down her cheeks.
“I’m yours,” she breathed, voice small and completely surrendered. “I don’t want to fight it anymore. I don’t want to be alone. Just… don’t let me go.”
Will held her tighter, still buried inside her, their bodies joined as completely as their hearts.
“I won’t,” he promised softly. “Never again.”
Will’s hand came down with a sharp *crack* on Penny’s ass as he drove into her from behind. The sound echoed through the room along with her loud, broken moan.
“Fuck— yes!” she cried, her pussy clenching hard around his thick cock.
“That’s it,” he growled, slapping her other cheek, watching the flesh jiggle and turn pink under his palm. “Tighten up just like that. Such a good girl for me, Penny. Realizing how badly you needed your brother’s cock. Begging the right way. Screaming for me like a proper little slut.”
Penny shuddered violently, completely lost in his words and the overwhelming power he had over her pleasure. Every filthy praise made her wetter, made her push back desperately onto his cock.
“I’m a good girl!” she screamed, hips slamming back to meet every brutal thrust. “I’m your good girl— fuck— please don’t stop!”
“You like that, don’t you?” he taunted, spanking her again. “My bratty little sister loves getting her ass spanked while her brother fucks her stupid.”
His hand slid down and found the small bottle of lube in her nightstand drawer. He popped the cap with his thumb.
“You naughty girl,” he growled, squirting a generous amount onto his fingers. “What’s this for?”
Penny’s cheeks burned. “I… when I touch myself… thinking about you…”
He cut her off with a deep thrust, then pressed a slick finger against her tight rear entrance and slowly pushed inside.
“That’s my good girl,” he murmured, working a second finger in while still fucking her pussy with long, punishing strokes. “Now take both holes like the perfect little fuck buddy you are.”
Penny screamed in overwhelmed pleasure as he stretched her ass and pounded her cunt at the same time.
“Oh fuck— Will!” she wailed, eyes rolling back as the dual sensation overwhelmed her.
He rode her even harder, hips snapping forward with raw power, thumb pumping in and out of her ass in time with his cock. The wet, filthy sounds filled the room.
“Fuck, Penny… I’m gonna cum,” he snarled, voice strained.
“Yes— oh god, me too!” she sobbed.
Her second orgasm hit like an explosion. Penny screamed his name, her entire body convulsing as her pussy spasmed violently around him. Will roared and buried himself to the hilt, flooding her with thick, hot ropes of cum. He kept thrusting through both their orgasms, pumping every drop deep inside her.
But even after he finished, his cock stayed rock-hard inside her, still throbbing with need.
Penny gasped, trembling and oversensitive. “Will… oh fuck, Will…”
He leaned over her, chest pressed to her back, lips brushing her ear as he slowly rolled his hips.
“I’m still so fucking hard for you, Penny,” he growled, voice dark and possessive. “I’m not done. I’m fucking your ass next.”
Penny’s eyes widened. A raw, overwhelmed scream tore from her throat — half shock, half desperate excitement — as the words sank in.
Chapter 31: All of You
Will stayed buried deep inside Penny’s pulsing pussy for a long moment, savoring the way she fluttered and clenched around him. Then he slowly pulled out, his thick cock glistening with their combined release. Penny whimpered at the sudden emptiness, still trembling from the aftershocks.
He leaned over her, pressing his chest flush against her back, his mouth right at her ear. His voice was low, filthy, and dripping with forbidden hunger.
“Fuck, Penny… I can’t believe my sexy big sister is letting me do this to her,” he growled, grinding his still-hard cock against her soaked folds. “Begging her own little brother to go balls-deep in her tight virgin ass. Begging me to ruin her like the dirty little slut she is.”
Penny shuddered hard. Why the hell did that turn her on so much? Hearing her brother say such depraved, taboo things should have horrified her. Instead, it made her pussy clench and drip even more.
His hands were everywhere — squeezing her breasts, pinching her nipples, sliding down to grip her hips and spread her ass cheeks. His body pinned her down, dominant and possessive, almost daring her to talk back.
She tried. “You’re such a perverted little— ahh!”
Will thrust forward hard, burying himself back into her pussy in one punishing stroke, cutting off her sass and turning it into a broken whimper.
“Fuck, I love that,” he groaned, lips brushing her ear again. “I love when you try to be sassy. It just makes me want to fuck the attitude right out of you.” He rolled his hips slowly, grinding deep. “I want you, Penny. Fuck… I want all of you. Every hole. Every moan. Every scream. You’re mine now.”
Penny whimpered, still shaking, her ass still burning from his earlier slaps. She couldn’t believe how much she needed this — how much she needed *him*.
Will pulled out of her pussy with a wet sound. He gripped her hips and pulled them higher, forcing her into a deep arch — face pressed into the mattress, ass raised high like an offering. Penny’s fingers instinctively gripped her own breasts, squeezing them as she trembled with anticipation and nerves.
She couldn’t believe she was actually letting her little brother do this to her.
Will slicked his thick, cum-covered cock up and down her crack, teasing her tight little hole with the fat head. He spat deliberately, letting a thick string of saliva drip down between her cheeks, lubing her up.
“Relax for me, baby,” he murmured, pressing forward. The broad head of his cock prodded insistently against her virgin asshole, stretching the tight ring of muscle.
Penny gasped sharply, fingers tightening on her breasts. “Will… oh fuck…”
He pushed harder, the pressure intense as her body slowly began to yield to him.
Will pushed forward steadily, the thick head of his cock slowly stretching Penny’s tightest hole. She groaned loudly — a raw, trembling sound that was equal parts pain and overwhelming pleasure.
“Fuuuck… Will… you’re too big,” she yelped, fingers digging into the sheets. “It burns— oh god…”
“Shhh, I’ve got you, baby,” he murmured, voice strained with lust. He stopped, buried only halfway, letting her adjust while his other hand found her swollen clit. His fingers moved quickly, rubbing tight, firm circles. “Fuck, you’re so wet, Penny. Your pussy is dripping down your thighs while I’m claiming your ass.”
Penny shuddered hard, the sharp sting mixing with the intense pleasure from her clit. Her hips twitched, then slowly pushed back, taking another inch of him.
“Good girl,” Will praised, voice thick. “That’s it. Take your brother’s cock in your ass like the perfect slut you are.”
She both hated and loved how filthy his words were. *Why did being degraded by her own little brother turn her on this much?*
“Oh god, Will… I can’t believe we’re actually doing this…” she moaned.
He pushed deeper, sinking another thick inch into her. Penny’s moan turned into a high-pitched whine as he filled her.
“Believe it,” he growled, finally bottoming out with a deep groan. “I’ve wanted this ass for so long. So fucking tight… so perfect… my sexy sister’s virgin ass wrapped around my cock.”
He began to fuck her — slow, deep thrusts at first, then building into a steady rhythm. He pulled her up onto her knees, her back pressed flush against his chest in a tight, possessive hold. One arm wrapped around her waist while his other hand slid between her legs, two fingers plunging into her soaked pussy.
Penny cried out, completely overwhelmed. His cock in her ass, his fingers curling inside her pussy, his body owning hers.
“You’re so fucking perfect, Penny,” he whispered hotly in her ear, thrusting harder while pinching and rolling her nipple with his free hand. “My beautiful, bratty, filthy big sister. Taking every inch like you were made for me. I’m so bad for wanting this… so dirty for fucking my own sister’s ass… and you love it, don’t you?”
She whimpered, nodding frantically. The taboo of it all made her burn hotter than anything else. “Yes… fuck— I love it… you’re so bad… so dirty… and it makes me so fucking hot…”
Her orgasm built fast and vicious. Her whole body trembled as she pushed back onto his cock and fingers.
“Will… I’m yours,” she gasped, voice breaking. “I’m all yours… I love being yours… your good girl…”
“That’s right,” he growled, fucking her harder, fingers curling relentlessly inside her. “You’re my good girl. Cum for me, Penny. Cum while your brother fills your ass.”
Penny shattered with a raw, shattering scream. Her body convulsed violently, pussy gushing around his fingers while her ass clenched rhythmically around his cock.
Will groaned loudly, burying himself as deep as possible. “Fuck— good girl!”
He came hard, flooding her ass with thick, hot pulses of cum as they orgasmed together. He held her tightly against his chest, hips grinding deep, emptying everything he had into her while she shook and whimpered in his arms.
They stayed locked together like that, panting, trembling, completely spent.
Will kissed the side of her neck softly, still buried inside her. “Mine,” he whispered possessively.
Penny, voice wrecked and dreamy, leaned back into him.
“Yours,” she breathed. “Always.”
Chapter 32: After the Storm
Will collapsed over Penny, both of them trembling and slick with sweat. He stayed buried deep inside her ass for a long moment, pulsing with the final aftershocks of his orgasm, before slowly, carefully pulling out. A thick trickle of his cum leaked from her well-used hole as he gently lowered her hips to the bed.
Penny whimpered softly at the loss, her body limp and oversensitive. Will immediately rolled her onto her side and pulled her into his arms, spooning her from behind. One arm wrapped protectively around her waist while the other brushed damp strands of hair from her flushed face.
“You okay, baby?” he whispered, pressing soft kisses along her shoulder and the back of her neck.
Penny let out a shaky, breathless laugh, still floating in a haze of pleasure. “I… I think you broke me, genius.”
He chuckled warmly and turned her gently to face him. Their eyes met — raw, vulnerable, and full of something deeper than lust. Will cupped her cheek and kissed her slowly, tenderly. Their lips moved together in a lazy, post-coital kiss, tongues brushing softly, savoring the taste of each other.
When they finally parted, Penny rested her forehead against his, eyes half-lidded in bliss.
“I can’t believe we did that,” she murmured, voice hoarse. “My little brother just fucked my ass… and I loved every second of it.”
Will smiled, a little shy but completely unrepentant. He kissed her again, deeper this time, pouring every ounce of his forbidden love into it. His hand stroked slowly down her back, cupping her ass possessively but gently.
“I love you, Penny,” he whispered against her lips. “Not just as my sister. I’ve been in love with you for a long time. The way you tease me, the way you make me laugh, the way you look at me like I’m the only person who really sees you… I couldn’t fight it anymore.”
Penny’s eyes shimmered with emotion. She kissed him again, slow and sweet, her fingers threading through his hair.
“I love you too, Will,” she breathed. “I’ve wanted your attention for so long… I just never imagined it would feel like this. So wrong… and so fucking right.”
They stayed tangled together, kissing lazily in the afterglow. Soft, lingering kisses that spoke of promises — of stolen moments, secret touches, and a taboo love they would protect no matter what.
Will pulled the blanket over them and held her close, her head resting on his chest. His fingers traced gentle patterns on her bare back while her leg draped over his thigh.
“No more hiding,” he murmured. “No more pretending. You’re mine now. All of you.”
Penny smiled against his skin, pressing a soft kiss over his heart.
“And you’re mine, little brother,” she whispered back, voice full of contentment and quiet joy. “My dirty, perfect genius.”
The golden wisps continued to drift lazily through the room, but in that moment, nothing else in the universe mattered.
Just the two of them — brother and sister, lovers, sealed together in forbidden bliss.
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