[MFF] Horror movie nights under one blanket with my wife and her sister Part 3
This is a direct continuation. Even if you’ve already read Part 1 and Part 2 before or not, I strongly encourage you to read it again right now, then come straight back here for Part 3.
The message came in early evening on the group chat.
“Movie night tonight? 😉”
I felt the old spark immediately. Without saying anything to either of them I grabbed my keys and went out for snacks, the same salty chips and cold drinks we used to keep on the table during those long winter nights. By the time I got back the house was quiet. SIL was already in the guest room. Around half past ten I opened the group chat again, ready to say we should start.
My wife answered first.
“No. We have to get up early.”
A few seconds later SIL reacted with a simple thumbs up. No argument. No second message. Just that.
I looked at my wife. “What’s going on?”
She didn’t answer in the hallway. She simply told me to come upstairs. Once we were inside our room she locked the door behind me and turned.
“No. We are not doing this again. Those were old days when we were stupid. It is not happening again. I am not sharing you for anything. Not for sex. Not for a movie. Nothing.”
I tried to look shocked, like the idea of anything sexual with her sister had never crossed my mind either. Like I only wanted a simple movie. The truth was the opposite. That was exactly what I needed. The dark room. The old risk. The memory of both of them under one blanket. I kept my face carefully blank while the want sat heavy in my chest.
She watched me for a moment longer, then stepped closer, pushed me down onto the bed, and took me into her mouth.
It was warm and wet and deliberate. She worked me slow at first, then deeper, using her tongue the way she knew I liked. My mind kept drifting down the hall anyway. To the guest room. To the old sofa. To the night I first slid inside her sister. I came faster than I wanted, a short sharp pulse that left me only half satisfied. She swallowed, wiped her lip with her thumb, and climbed back up beside me without a word.
We turned to opposite sides of the bed. The space between us felt wider than usual. I closed my eyes and tried to sleep. It didn’t work. Every time I started to drift I saw her sister’s face over her shoulder that first night, the filthy little smile, the way she had pushed her pajamas down and given me the perfect view of her ass before climbing onto my lap. My cock stirred again against the sheets. I stayed still and pretended I was already out.
My wife wasn’t sleeping either. I could feel her breathing change, the small restless shifts of her body. After a long time she rolled toward me. Her hand found my chest and started moving in slow circles, warm palm over my skin.
“What’s going on?” she asked. Soft. Careful.
I kept my eyes closed. “Nothing.”
She kept rubbing. “You’re not sleeping. Talk to me.”
I didn’t want to tell her the truth. That I was hard again because I was thinking about her sister. That I wanted the three of us under one blanket one more time. So I gave her the safer version.
“You shut everything down. I just wanted to watch a movie.”
Her hand stilled for a second, then kept moving. “I meant what I said. I’m not sharing you. Not even for an hour. You’re mine. Only mine.”
I understood the words. I even respected them. But my body wasn’t listening. My cock was thick and heavy against my thigh, still half hard from the memory I refused to speak out loud. Her hand slid lower, across my stomach, and I felt her fingers brush the base of me. She paused.
She climbed over me in the dark, settled her weight on my thighs facing away, and leaned back until her mouth was close to my ear.
“I know what you want,” she whispered, and spoke her sister’s name. “Let me be her tonight.”
Something in my stomach dropped.
She reached up, gathered her long hair, and tied it high the exact way her sister always did, leaving her neck bare and open. When she looked back over her shoulder the smile she gave me was pure filth, the same little curve of lips I still remembered from that first night under the blanket. Her body was already so close to her sister’s it almost hurt to look at. Same thick round butt settling against me. Same heavy, powerful thighs. Same deep, chiseled line of her back tapering down to the soft flare of her hips.
She pulled her underwear aside, took my cock in her hand, and guided me in. The first slow sink of her heat around me made my breath catch. She started riding reverse cowgirl, rising and dropping with deliberate control. Her big round ass moved up and down in front of me, full and heavy, the cheeks spreading slightly each time she sank down. I couldn’t look away from the tight little hole between them. It opened and closed with every movement, pink and clenched, right there in front of my eyes.
I had always wanted to take that hole. She never let me. She wanted nothing to do with her backdoor. In our culture and our religion it was not permissible, and she held that line without exception. She knew exactly what I was staring at. She always knew when she rode me like this.
She looked back over her shoulder again, still using that soft teasing voice that belonged to her sister.
“Grab the baby oil,” she said. “The one on the side table.”
I reached for it. The same bottle we used for ordinary massages. She told me to pour it on her back and over her butt, let it run between the cheeks and down to her hole. I did. The oil glistened as it slid along the cleft and gathered at that tight ring. She told me to rub it. I wasn’t surprised. This was as far as she had ever allowed me to go.
I circled the slick rim with my fingertip, slow and careful. The muscle fluttered under the oil. Then her voice changed.
“Put your thumb in.”
I froze. “What?”
“Put your thumb in,” she repeated, still in that low ethnic tone. “Feel how tight and warm and soft it is.”
I pressed. The ring resisted for a second, then opened just enough to take the tip of my thumb. The heat inside was startling. Soft, gripping, impossibly tight. She pushed back against my hand, taking more of the thumb while her pussy kept sliding up and down my cock.
“Feel it,” she whispered. “Feel like that is your dick buried in my butt.”
All of it felt unreal. She kept talking exactly like her sister, low and dirty, asking how her ass felt on my dick, telling me to imagine I was inside it, making the fantasy so complete that for a few long seconds it genuinely felt like my cock was buried in her ass instead of her cunt. The oil, the stretch around my thumb, the wet grip of her pussy, the voice in my ears. I wanted it to keep going. I wanted to stay right there on the edge forever.
She had other plans. She reached down between my legs and started rubbing my balls with a firm, knowing pressure. The reverse card. She knew exactly what that did to me. The dual sensation of her tight hole around my thumb and her hand working my balls pushed me over so hard I couldn’t stay quiet. I screamed into the dark as I came, the orgasm ripping through me like something new, something different, pulse after pulse emptying deep inside her while the bed frame creaked and rocked under us. The whole house was silent except for the noise of our bed. We didn’t care.
When the last tremor left me she lifted off slowly, my thumb slipping free, and walked straight into the bathroom without looking back.
I lay there breathing hard, still half lost in the fantasy. After a minute I reached for my phone.
Messages from SIL.
“Hey you guys are not sleeping.”
“What is that noise?”
She knew exactly what it was. More messages followed.
“Are you awake?”
“I can’t sleep either. Can I come up and talk?”
I read every one of them. Part of me wanted to type yes. Part of me wanted the door to open and for her to walk in while I was still slick and spent. I stared at the screen for a long time.
I didn’t answer.
This is the final part of this series as it happened. I don't plan to write anymore on this topic.