My Wife, Her Sister, and the Horror Movie Blanket (Part 1)

We were from a conservative background in a conservative country in East. Being virgins in our early twenties was completely normal. No one rushed these things. Still, the three of us had been close since college. Me, the girl who would become my wife, and her sister who was one year younger than me. We were inseparable. My SIL was the only one who actually loved horror movies. My wife and I mostly just loved being near each other.

That December the schools were closed and it was freezing. Almost every night the three of us ended up on the big living-room sofa at their house, lights off, one thick blanket over our legs, some movie playing until two or three in the morning. Their parents never minded because we stayed in the open living room.

Usually my wife sat in the middle. One night the movie was especially bad. She kept grabbing my arm every time something jumped. My SIL had nothing to hold onto and finally complained. So the next night they put me in the middle.

The new movie started. The room was dark except for the blue glow of the screen. My wife and I weren’t really watching. We started with little smooches at first, the kind we always did when no one was paying close attention. Soft, quick ones. Then they got longer. Deeper. Tongues sliding. Her soft moans breathing into my mouth. I moved down to her neck and started kissing and sucking there. She arched and let out a longer, wetter sound against my ear.

My hand slid under the blanket and settled between her legs, right over her pajama bottoms. The fabric was already soaked through. I could feel the heat and the wetness seeping into my palm. She was dripping.

She leaned in, lips against my ear, voice shaking.

“Put your hand inside and rub me.”

We were all still virgins. That was normal for us. My wife and I had kissed for hours and ground against each other until we were shaking, but that was as far as it had ever gone.

I slipped my fingers under the waistband. Her pussy was swollen and slick, folds parting easily for me. The second I touched her bare clit she jerked and bit down on my shoulder to stay quiet. I started rubbing slow circles. Her hips rolled against my hand. The wet sounds were soft but clear under the blanket. The fabric kept shifting with every stroke.

My SIL could see everything. She could hear the wetness. She could feel the blanket moving.

Then, without a word, she reached over, grabbed my wrist, and pulled my hand straight onto her own pussy. Same tight pajamas. Same heat. Same wetness already soaking through.

I yanked my hand back like I’d been burned and stared at my wife.

She only whispered, voice low and steady, “It’s okay. Do it.”

So I did.

I rubbed both of them at the same time, one hand on each soaked crotch. Their hips started moving in the same rhythm. The blanket rose and fell. The wet sounds got louder.

The pajamas were too tight. I couldn’t move the way I wanted.

“Pull them down,” I said, voice rough. “Both of you. To your knees.

My wife did it fast under the blanket. My SIL stood up.

I had seen my wife naked before. I had never seen my SIL’s body.

She turned her back to me, hooked her thumbs in the waistband, and slowly pushed the pajamas down. The most perfect round, smooth ass I’d ever seen came into view. Soft, full, flawless. She looked over her shoulder, gave me the filthiest little smile, and used both hands to press her cheeks together, spreading them just enough to tease me before she sat back down and pulled the blanket over us again.

She immediately grabbed my hand and put it right on her bare, dripping pussy.

I was so hard.

I leaned in so both of them could hear me.

“Whoever comes first gets me to rub my cock between their ass cheeks and cum right there. No penetration. Just my cock sliding between those cheeks until I empty myself. Deal?”

They both nodded. Fast.

I’d done it with my wife a couple of times already. The thought of doing it to my SIL made my stomach drop.

I went back to rubbing them. Two hands. Two soaked, swollen pussies. I gave my SIL more pressure, more speed, more attention. I wanted her to win. She wanted it too. I could feel it in the way her hips started fucking my fingers.

Her breathing turned into broken little gasps. Her thighs started trembling. Then she came.

Hard.

Her whole body went rigid, then started slithering and shivering against me like she couldn’t control it. Her thighs clamped around my hand so tight it almost hurt. A long, wet moan spilled out of her mouth against my neck. I felt the gush, hot and slick, running down her inner thighs and onto my wrist. She kept shaking for what felt like forever, pussy pulsing against my fingers.

When the worst of it passed she smiled, took my soaked hand, and pushed three of my fingers straight into my mouth.

“Lick. All of it.”

I did and it tasted amazing.

My wife had been holding back on purpose. Thirty seconds later she came just as hard. Same full-body slithering, same violent shiver, same helpless wet sounds. Her thighs flooded. I felt the heat pour out of her onto my other hand and down onto the cushion.

When they finally stopped shaking and we sat up a little, the sofa under both of them was dark and wet. A clear wet patch spread across the fabric where their asses and thighs had been.

They both looked at me, still breathing hard, faces flushed, thighs shiny.

“Whose tastes better?” they asked at almost the same time.

I told them the truth.

“Both.”

I kept listening for footsteps on the stairs. Their dad came down almost every night to check on us. Every single night. I was certain he was about to walk in and see the two of them with their pajama bottoms around their knees, thighs glistening, the sofa soaked, my hands still wet with both of them.

But the house stayed silent.

Either he had finally fallen asleep or he was upstairs doing something else entirely.

I was too worked up, too scared, and too far gone to finish what we’d started. I pulled my hands back, told them it was late, and started to stand.

They didn’t let me leave.

That same night, still under the same blanket, still in the same dark living room, they decided it was my turn.

Edit: Added link to part 2.