Summer in the Guest Room - Taboo

18+ ONLY | Consensual adult fiction | Taboo fantasy theme | All characters 18+

The summer after freshman year hit different.

Mom remarried while I was away. New stepdad: Mark. Late 30s. Built like he still swung hammers for fun before switching to real estate. Deep voice. Eyes that held contact too long.

He brought Emily. Twenty. One year older than me. Dark hair always in a messy bun. Freckles across her nose and shoulders. Legs that went on forever in those tiny denim cutoffs.

Four adults. One house. Thin walls. Shared bathrooms. Instant tension.

The First Spark

First week: forced family dinners. Mark grilling steaks. Mom over-pouring wine. Emily and I side-by-side on the couch after, some Netflix thriller nobody watched.

Our thighs brushed. Once. Accidentally.

Neither moved.

Her skin burned through my shorts. Coconut sunscreen + sweet vanilla underneath. My pulse kicked.

Midnight Visitor

That night — 2 a.m. — hallway creak. Bare feet.

My guest-room door eased open. Moonlight cut in.

Emily. Oversized faded Nirvana tee. Mid-thigh. No bra — nipples shadowing the cotton. Hair wild now.

“Can’t sleep?” she whispered.

I sat up. Sheet at waist. “Too quiet.”

She stepped in. Closed the door. No light. Sat on my mattress edge like it was normal.

“Dad’s snoring like a chainsaw. Your mom’s out cold. Knew you’d be awake.”

We talked bullshit — college, dorm food, how fucking weird our parents’ marriage was.

Her knee pressed my hip the whole time. Every quiet laugh — shirt rode higher.

The Confession

Then silence. Heavy.

She stared at her twisting hands.

“Ever think about it?” Barely a breath.

“About what?”

Us. Here. Knowing we’re not supposed to.

Heart in my throat. “Yeah. Too much.”

“Me too.”

She leaned first — slow. Giving me the out.

I didn’t take it.

Lips soft. Hesitant. Then hungry. Tongue met mine — mint + faint wine. My fingers knotted in her hair.

The Heat Builds

She yanked the tee off. Breasts bare in moonlight. Full. Nipples tight, dark.

I groaned low.

“Shhh.” Smiling. “They’ll hear.”

Pulled her down. She straddled me. Ground slow. No panties. Just slick heat soaking my shorts.

Flipped her under me. Kissed throat. Collarbone. Took a nipple in my mouth.

She arched. Nails in my shoulders.

“Fuck… yes…”

Hand between thighs. Drenched. Two fingers slid in easy. Tight. Clenching. Curled — hit the spot. She gasped. Hand over her own mouth.

“Mark would lose it,” she breathed. Half laugh, half moan.

“But you’re dripping for your stepbrother anyway.”

She shivered. “Say it again.”

“Stepbrother.” Slower pumps. Teasing. “Your dad’s new wife’s son is finger-fucking you while they sleep down the hall.”

The Release

Hips bucked. “God… don’t stop.”

Worked her till thighs shook. Till she hissed, “Gonna come… please…”

Mouth over hers as she shattered — body locking, pussy pulsing hard, muffled cry in my palm.

Eyes glassy after. She shoved my shorts down. Cock free — heavy, leaking.

Her hand wrapped. Slow strokes.

“Want this inside me. Now.”

Condom from drawer. Rolled on while she watched — legs wide, fingers circling clit lazy.

Settled between thighs. Rubbed head along slit. Coated in her.

Pushed in slow.

Tight. Hot. Wet. Bottomed out — both groaned.

Nails raked my back.

“Move.”

Slow strokes first — deep, making eyes roll. Then faster. Harder.

Bed creaked. Skin slapped. Wet sounds loud in dark.

“Harder… fuck me like you hate we’re family now…”

Pinned wrists above head. Deep thrust.

“Like being my dirty little secret?”

“Yes — God yes—”

Tightened again. I angled — hit spot relentlessly.

She came hard — back bowing, fluttering, biting my shoulder to stay quiet.

Pushed me over. Buried deep. Came hard inside condom. Groaned into her neck.

Aftermath & Promise

Sweaty. Panting. Hearts slamming.

Reality crept back. House. People nearby.

Soft kiss. “Can’t get caught.”

“I know.”

Wicked smile. “But we will again. Tomorrow night?”

Grinned. “Yeah. Tomorrow night.”

She slipped out. Tee back on. Last dark-eyed look — promise thick.

Ghosted into hallway.

Lay staring at ceiling. Still tasting her. Half-hard again.

Summer just started.

This house? Way too fucking small.

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