Fucking my Sister-in-law

Smyposis: Jake's a horny husband, home alone with his wife's sister. -- When his wife Sarah, has to go out for a job emergency leaving only him and his sister-in-law Jess home alone on Xmas Eve, things get real messy real quick.

*********

The house smelled like pine from the Christmas tree and cinnamon from the cookies Sarah baked yesterday. Big, old Victorian place on the edge of town—three stories, wraparound porch, the kind of house that looks perfect in snow, which it was doing now. Fat flakes falling since noon, piling up fast. The Power lines were already sagging.

Sarah had left at dawn. Emergency call from the hospital; some staffing crisis in the ER. “I’ll be back by tomorrow night,” she said, kissing me quick at the door, coat half-on. “Keep an eye on Jess. Don’t let her drink all the eggnog.”

Jessica. Sarah’s younger sister. Twenty-eight, only two years younger than Sarah, flight attendant, blue hair with green eyes. She’d flown in from Denver two days ago for the holiday week. First time she’d visited since the wedding. Sarah was thrilled that she'd spend the holidays with us. Me?.. it was alright.. she was cool I guess

Finally, Sarah was gone

....

The house was dead quiet except for the low howl of wind outside and the occasional creak of old beams settling under fresh snow. Sarah had been gone less than six hours, but it already felt like days.

Jessica had arrived around noon, suitcase wheels scraping the foyer, cheeks pink from the cold. She’d barely said hello before disappearing upstairs with a quick “I need a hot shower. Plane was freezing.”

I stayed downstairs. Made coffee, and stared at the Christmas tree. I tried not to think about how her laugh sounded exactly like Sarah’s but lighter

Twenty minutes later she came back down. Hair damp, skin still flushed from the steam. Wrapped in a white bath towel that hit mid-thigh. Bare legs, bare shoulders, and droplets clinging to her collarbone.

She stopped at the bottom of the stairs, reached for the railing, and that's when the knot slipped.

Accidently, the towel fell from her body. Highlighting her fruits

For one stupid second I couldn’t move, couldn't look away

Full breasts, nipples tight from the chill, soft flat stomach, trimmed dark patch between her thighs. Long legs that seemed to go on forever. Her inner body was beautiful, in a way that felt unreal n addictive

“Eyes up!” she snapped, voice sharp but laughing underneath. Her hands flew to cover herself;breast and crotch; her cheeks flaming red.

I spun around so fast my coffee sloshed. “Shit sorry,fuck-” I looked away. Heart hammering but my cock was already thickening against my jeans. I stared at the kitchen doorway, willing it to stay soft, I'd not want her to see me like this.

But It didn’t.

She laughed softly,, embarrassed. “It’s fine. Just… give me a sec.”

I heard the towel rustle, footsteps retreating upstairs. I stayed facing the wall like an idiot until she came back down in leggings and an oversized hoodie, no bra, I could tell from the way the fabric moved when she walked.

"Movie¿" She Asked

"Why not" I responded

We ended up on the couch with hot chocolate spiked with rum and a cheesy Christmas Rom-com movie queued up. Some Hallmark knockoff about a city girl and a small-town carpenter.

The light began dimming, fire crackling, snow piling against the windows - The usual Xmas feeling

Halfway through, the wind picked up, and the house groaned, as drafts crept in.

Jessica shivered, pulled the throw blanket over her legs.

“Freezing,” she muttered.

“Yeah.”

She glanced at me. “You cold too?”

“A little.”

Then she scooted closer. “Scoot over. Body heat’s the best heater.” She said playfully

I hesitated, then shifted. She tucked herself against my side—head on my shoulder, legs curled under the blanket. Her hip pressed to mine, warm and soft

“Better?” she asked softly.

“Yeah.”

We watched in silence.

Her breathing slow against my neck. Every time she shifted, her ass brushed the outside of my thigh, grinding my hard cock. Her butt was soft, perfectly soft actually. I tried to focus on the screen but Couldn’t. My dick was half-hard already, trapped awkwardly in my jeans.

Another flicker. Lights dimmed, brightened, dimmed again.

Then the TV stuttered.

Then the scene changed—on-screen couple in a cozy cabin, snow outside, clothes coming off slow. Kissing deep, hands under shirts. Her moaning his name while he lifting her against the wall.

Thrusting slow at first, then harder.

I could feel the rock between my legs get stronger, pressing on her light leggings, direct contact with her backside only a thin fabric in the middle. I'd be lying to myself if I believe she doesn't feel it But Jessica didn’t move away. If anything, she pressed closer. Her ass settled right against my crotch now; her soft cheeks cradling the growing ridge in my jeans. I was fully hard now.

No way she doesn't feel it

But she stays silent. Kept watching the screen.

The couple on TV was fucking now, deep, rhythmic, her legs wrapped around me, one of her legs spread upwards above his shoulder while he thrust faster and deeper, nails on his back.

Moans filling the speakers.

My hand rested on Jessica’s thigh. Didn’t mean to. Just happened, intinct I guess. She didn’t flinch. Her fingers found mine—interlaced them slowly. Squeezed.

The lights flickered one last time.

Then everything went black.