[FM] Brother in law made the first move (first post here)

(FYI- cross posted)

It was the holidays and all of my(32F) husband’s family stayed over at my in laws. My husband (36M-Justin) is the oldest of 4 children and each have their SOs and kids. Needless to say, the 4 bedroom house was filled to the brim. My husband and I were in the bedroom downstairs in the finished basement and just outside our door was his younger sister (29F- Cassy) and her husband (30M-Brad) in the main rec room on a pull out bed. Everyone else was staying upstairs. The in laws on the ground level with the kids in the living room and the rest on the second floor. 

After a long day of family, food, and typical visiting, we all winded down with a movie in the living room on the main level. Couch space was limited but we all managed to squeeze in together where we could while the kids played and watched the movie on the floor. I leaned in close with my husband as we watched, his arm around me and my shoulder resting on his chest. 

Cassy was on the floor with the kids while Brad sat on the same couch as Justin and I. I was in the middle. As the movie played, Brad’s hand would brush up against my thigh. At first, I thought it was an accident but it kept happening throughout the movie… he touched longer and more purposefully each time. I asked Justin for the throw blanket and covered myself with it, snuggling deeper into my husband’s chest, and pressing my hip into Brad. He took the hint. Brad reached under the blanket, caressing my thigh, moving up toward my already wet pussy. I slowly spread my legs open for him and he rubbed my clit over my leggings. I reached under the blanket and could feel his cock bulge under his pants. 

My husband needed to get up to use the restroom. No sooner did Justin leave the room, Brad had pulled down my leggings under the blanket and slid his fingers deep into my pussy. He finger fucked me hard and fast, trying to get me off before Cassy noticed or Justin came back into the room. It didn’t take long before I was biting my lips shut and gripping the couch as my pussy pulsed around his fingers, covering them in cum. I felt this rush of heat and desire flood over me… breathing heavily. I barely regained my composure as Justin came back to his seat. Nothing else happened the rest of the movie and afterwards, we went to bed. 

I snuggled up with my husband in bed, but I couldn’t sleep. I was still so hot from earlier … I needed more. After a few hours of lying there, I was restless. I woke up Justin with my hand stroking his cock. It didn’t take long before we were fucking. I did my best to remain quiet and limit our movements. We didn’t want to wake anyone. A few minutes later, my husband had came and I was still needing more. I put on a small tank top and my damp panties from earlier to walk out to the bathroom to clean up. Justin was snoring in bed before I even left the room. I walked across the rec room where everyone seemed to still be asleep and into the bathroom.

I came out of the bathroom and Brad was standing right outside the door. He startled me and I gasped. We both looked around to see that Cassy hadn’t stirred. He stepped in close to me, putting his hands on my waist, and he whispered in my ear. He told me that he could hear me fucking Justin and that it turned him on. I reached and felt his hard cock under his loose boxers. I was a bit shocked at how big it felt in my hand. He asked me if I was satisfied after fucking my husband and I answered him.

No. I needed more. 

He kissed me deeply, guiding me backwards into the bathroom. After shutting the door and locking it, he made quick work of getting off what little clothing we had on. He pulled me towards him and began sucking my nipples and squeezing my ass as I stroked his cock. His precum already dripping from the tip. I slowly slid down to my knees and stared in awe at his massive cock. He saw the look on my face and smiled. He took hold of my hair and shoved his cock in my mouth so deeply, I gagged right away. It didn’t stop him. He took my head in both hands and fucked my mouth so hard and fast that drool dripped down over my chin and onto the floor. I could barely breathe but I gripped his thighs and took it like a good slut. 

He stopped me and told me to sit on the counter and, like a good girl, I did as I was told. I slid to the edge and he knelt down in front of me… staring at my dripping pussy. He asked me if Justin came inside of me. 

Yes. He did. 

Then Brad said that he needed to clean up my husband’s mess and started licking my pussy clean. His tongue felt so good and warm inside of me. I held onto the countertop and squeezed his head between my legs as he made me surge, filling his mouth with my cum. I couldn’t help but let out a soft moan. He got up and wiped his face on a towel and turned on the shower. Instantly, the room filled up with steam and he told me to get down on the floor. 

I did. I got down and laid on the cold tiles. He knelt over me and guided his massive cock into my tight dripping pussy. I moaned louder as he stretched me open, the noise of the shower drowning me out. He pumped his cock into me slowly at first, taking his time. He leaned down to suck on my nipples as he started to thrust into me faster and harder. I tried to hold in my moans, but as he started to fuck me harder and harder, they escaped me. He reached over and grabbed my wet panties to stuff into my mouth and kept ramming his cock deep inside my stretched pussy. I could feel myself tighten around him… I was close to cumming for the 3rd time that night with my husband’s brother in law. He grabbed my breasts tightly for purchase and rammed into me hard. I arched my back in ecstasy as my pussy quivered around his throbbing cock, my panties muffling my moans. My cum dripped out of me onto the floor. He didn’t hesitate and pounded me harder and harder, our skin slapping together. The shower was still pouring and steam made sweat glisten off our bodies. He took me harder and faster than I ever have before. His huge cock hit me deeper than I’ve ever felt. And finally, I felt him pulse inside of me. He gave me one final hard thrust before filling me with his cum. We stay wrapped around each other for a moment, catching our breath. Then, he got up and rinsed himself in the shower before turning it off. He dried off with a towel and threw it down to me on the floor. 

Then he left the room. I stood and cleaned myself up a little before getting dressed in my damp clothes again. I walked out of the bathroom to find Brad in bed with his wife. He blew a kiss to me in the darkness as I went back to my husband.

Brad’s cum still deep inside of me. Such a good little slut. 

Source: reddit.com/r/gonewildstories/comments/ffdq88/fm_brother_in_law_made_the_first_move_first_post

6 comments

  1. Sometimes, I have thoughts for my sister in law too. That’s hot.

  2. That was really well written and VERY hot. You are indeed a very good little slut, thanks for sharing!

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