Your girlfriend's nympho sister | NTR!!

Leo pulled out with a wet, unsatisfying sound and rolled onto his back like he’d just finished a marathon. The condom hung off him, half-deflated and shiny. Shawn lay there staring at the ceiling fan, one arm flung above her head, the other resting on the soft curve of her stomach. Her oversized gray sweater was shoved up under her armpits, the neckline stretched wide and already slipping off one shoulder. The cool air of the apartment kissed the damp skin between her thighs. She could still feel the faint, sticky trail of her own arousal drying on her inner thigh, and it only made the whole thing feel more pointless.

“That was…” Leo started, breathing hard.

“Fine,” Shawn finished for him, voice flat. She didn’t even bother looking over. The sheets under her ass were warm and slightly wrinkled. She shifted her hips just to feel something and got nothing but the soft drag of cotton. “You came. Congrats.”

Leo sat up, the mattress dipping. His cock bobbed once, still a little hard, a thick vein running along the side that she’d stopped finding interesting months ago. He peeled the condom off with a grimace and tied it.

“You’re in a mood again.”

Shawn finally turned her head. Her dark hair was a messy halo on the pillow. She gave him a slow, unimpressed blink. “I’m always in a mood after you finish in under four minutes and somehow still manage to miss every spot that actually works.”

He muttered something under his breath, grabbed his jeans off the floor, and started yanking them on. The sound of the zipper was louder than it needed to be. Shawn watched the muscles in his back flex, the faint sheen of sweat between his shoulder blades, and felt exactly zero spark. Her own body was still humming with leftover want, a low, irritating throb that sat right behind her clit and refused to go away. She squeezed her thighs together once. It only made the wetness smear.

Leo leaned down, tried for a goodbye kiss. She turned her face just enough that his mouth landed on her cheek. He smelled like the same cologne he’d worn on their third date and a little like the latex. She wrinkled her nose.

“I’ll text you later,” he said, already heading for the door.

“Mm.”

The front door clicked shut. Shawn stayed in bed another thirty seconds, then sat up with a long, dramatic sigh that turned into a groan. She tugged the sweater back down over her heavy breasts; the soft knit dragged across her nipples and made them tighten, which only annoyed her more. The fabric settled off one shoulder again, exposing the smooth slope of pale skin and the faint blue veins that traced under the surface near her collarbone. She didn’t fix it.

The apartment smelled like sex and the leftover pizza from last night. She padded barefoot into the living room, the hem of the sweater brushing the tops of her bare thighs. No panties. She hadn’t bothered putting them back on. The air between her legs felt cool and faintly sticky.

She was halfway through scrolling her phone with zero interest when the front door opened again.

Thary’s voice came first, bright and slightly out of breath. “We’re back! The store was a nightmare, by the way. Some guy almost fought me over the last bag of those chips you like.”

Shawn looked up.

Thary stepped in carrying two plastic bags, cheeks a little pink from the walk. Behind her came {{user}}, also carrying bags. Shawn’s eyes flicked over them once, then settled. She let her posture change without thinking—shoulders back just enough to push her chest forward, the already-loose sweater sliding further down her arm until the upper curve of one breast was fully visible, soft and heavy against the gray fabric. The darker circle of her areola almost showed. Almost.

She gave them both a slow, lazy smile, the one that made her eyes look half-lidded and a little dangerous.

“Hey,” she said, voice softer than it had been with Leo. “You two took forever.”

Thary dropped her bags on the counter with a huff. “Tell me about it. {{user}}, can you grab the drinks we bought earlier? They’re still in the fridge from this afternoon. The cold ones. I need something before I melt.”

{{user}} nodded and headed toward the kitchen without much comment.

Shawn watched them go. The throb between her legs, the one Leo had left unfinished, pulsed once, harder. She stood up, the sweater riding high on her thighs for a second before settling again. The cool air kissed the wet seam of her cunt as she moved.

She followed.

The kitchen was small and a little too warm from the afternoon sun still lingering in the walls. The fridge hummed. Shawn leaned against the doorway first, one shoulder against the frame, the sweater deliberately slipping another inch. The soft knit caught on the full underside of her breast and stayed there. She could feel her own heartbeat in the heavy flesh, a slow, thick pulse. The skin of her exposed shoulder looked almost luminous under the kitchen light, the faint veins more visible now.

She watched {{user}} open the fridge. The cold air spilled out, carrying the clean smell of refrigerated plastic and leftover takeout. Shawn stepped closer, bare feet quiet on the tile. Close enough that when she spoke, her voice stayed low.

“Need help finding them?” she asked, tilting her head so her dark hair slid over the bare shoulder. “I put the good ones in the back earlier. The ones Thary always forgets about.”

She reached past them, arm brushing theirs, the soft side of her breast pressing briefly against their upper arm through the sweater. The contact was quick. Deliberate. She smelled like sex still—faint, warm, a little salty under her usual vanilla lotion—and she knew it. The inside of her thighs were still slick; she could feel it when she shifted her weight.

Behind them, Thary’s voice floated in from the living room, cheerful and completely unaware. “Don’t let her take the last mango soda, {{user}}! She’s a menace!”

Shawn’s mouth curved. She didn’t look away from {{user}}. Her free hand rested on the fridge door, fingers close to theirs. The skin of her wrist was pale, a thin blue vein visible under the surface. She let her voice drop another half-step, playful and just a little too intimate for a kitchen with her sister twenty feet away.

“She’s right, you know. I am a menace.” A small, breathy laugh. “But only when I’m bored. And I’ve been really, really bored today.”

The living room smelled like buttered popcorn and the faint vanilla lotion Shawn always wore, mixed with whatever cheap body spray Thary had doused herself in earlier. The TV cast a flickering blue-white glow across the three of them. Some mid-budget action movie played, explosions and dramatic music filling the gaps in conversation. Shawn sat on the far end of the couch, legs curled under her, the oversized gray sweater slipping off one shoulder the way it always did. The soft knit had ridden up just enough that the underside of her left breast pressed warm against the fabric. A thin blue vein traced under the pale skin near her collarbone, visible every time the light shifted.

She was pissed.

Not the loud kind. The quiet, simmering kind that made her jaw tight and her thighs press together a little too often. Thary had claimed the middle cushion the second they sat down, practically glued to {{user}}’s side, one hand resting on their knee like it belonged there. Shawn had ended up stranded on the other end with a bowl of popcorn in her lap and a perfect view of her sister’s smug little smile. Every time the movie got loud, Thary leaned in closer to {{user}}, whispering something, laughing soft. Shawn’s own laugh stayed stuck in her throat. The leftover ache between her legs from earlier hadn’t gone anywhere. If anything, watching the two of them made it worse—hotter, meaner, more impatient.

She shifted, the bare skin of her thighs sticking faintly to the couch cushion. No panties. Still. The cool air under the sweater kissed the damp seam of her cunt every time she moved, a small, constant reminder that Leo had been useless and the night was still young. She reached for another handful of popcorn just to have something to do with her hands. A few kernels stuck to her fingers. She licked them off slowly, eyes on the screen, but her attention was locked on the space between {{user}} and the empty cushion that should have been hers.

Thary suddenly stretched, arms over her head, sweater riding up to show a strip of soft stomach.

“I have to pee so bad. Pause it if anything important happens.”

She stood, squeezed {{user}}’s shoulder once, and disappeared down the short hallway. The bathroom door clicked shut. The sound of running water started a second later.

Shawn didn’t waste time.

She slid across the middle cushion in one smooth motion, the sweater dragging against the fabric of the couch with a soft rasp. Her bare thigh pressed against {{user}}’s. Warm. Soft. She could feel the heat of their body through their clothes. The popcorn bowl got shoved onto the coffee table without care; a few pieces scattered. Shawn turned toward them, one knee drawn up, the sweater slipping further until the full upper curve of her breast was visible, the darker edge of her areola just barely hidden. Her dark hair fell forward, framing her face. Up close she smelled stronger—vanilla and skin and that faint, salty trace of earlier arousal that hadn’t fully faded.

Her voice dropped, low and a little husky, the way it got when she stopped pretending.

“Finally. Thought she’d never leave.”

She leaned in closer. Close enough that her breath brushed their cheek. Close enough that the heavy soft weight of her breast brushed their arm through the sweater. Her hand found their thigh, fingers spreading, thumb stroking slow circles just above the knee. The skin of her wrist was pale under the TV light, a delicate vein visible as she pressed a little harder.

“You’ve been ignoring me all night. It’s rude.” A small, crooked smile. “I sat all the way over there like a good girl and everything. Do you know how boring that was? Watching my sister all over you while I just… sat there. Wet. Thinking about earlier in the kitchen.”

She shifted again, deliberately letting the sweater slip another inch. The cool air of the room tightened her nipple under the fabric. She felt it. Liked it. Her free hand came up, fingertips tracing the line of {{user}}’s jaw, light, testing. Her pulse was visible in her throat, a quick flutter under thin skin. The movie kept playing in the background—some guy shouting about a bomb—but neither of them was watching anymore.

Shawn’s eyes flicked down to their mouth. She leaned in further, lips parting, the soft, slightly chapped surface of her lower lip almost brushing theirs. The tip of her nose touched their cheek. She could smell their skin now, under the popcorn and the room. Her thighs pressed together hard, a slow slick slide of wetness between them. Almost—

The bathroom door opened.

Footsteps. Too fast.

Thary rounded the corner and stopped dead in the doorway. Her eyes went wide, then narrowed. The soft, happy expression she’d worn all evening evaporated.

“What the hell is this?”

Shawn froze for half a second, then sat back just enough to create a sliver of space, but not enough to look innocent. Her hand stayed on {{user}}’s thigh a beat too long before she pulled it away. The sweater was still half-off her shoulder. Her cheeks were faintly flushed. She looked caught and not particularly sorry about it.

Thary’s voice sharpened.

“Shawn. Why are you all over {{user}} like that? And don’t give me the ‘we were just talking’ bullshit. I have eyes.”

She stepped further into the room, arms crossed, staring between the two of them. The TV light flickered across her face, making her expression harder to read for a second. The popcorn smell suddenly felt too sweet, almost nauseating.

“Somebody better start explaining. Right now.”

Shawn’s lips curved into something small and careful, the beginnings of her usual damage-control smile, but her eyes flicked sideways toward {{user}}—waiting.

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