[MF] I made my big sister’s boyfriend cum while we sat right next to her

Before lockdown, I was spending more and more time at my parent’s house, where my big sister (24) still lives. They have a big house on the water and it’s so nice and my sister moved back home temporarily about a year ago and never wanted to leave (I can’t blame her).

She has a boyfriend who she’s been with for almost a year now and he is always hanging around at my parent’s house with my sister – they don’t mind since they like him and it’s a big place so nobody steps on anyone’s toes. Almost everytime I go home to visit, he is there. He’s a nice guy and VERY good looking (my sister is a hottie too) but I also get the feeling that he used to be a real fuckboy.

There’s DEFINITELY sexual tension between us (I look alot like my sister but younger so it kind of makes sense). When my sister is around the three of us just chill and its totally normal, but if it’s ever just him and me then you can just feel the attraction. Recently, each time I go home I’ve been pushing the limits more and more whenever we’re alone. I’ll openly flirt with him, be super suggestive then play dumb, show off my body so he can see and brush up against him and be super touchy whenever I can. It feels so naughty teasing him when he knows he can’t have me and its extra naughty knowing I’m turning on my sister’s man and she has no idea.

A few weekends ago, the whole family and my sister’s boyfriend were all in the living room watching a movie together (pretty common thing we all do). My sister and I sat either side of her boyfriend, since he had a huge bowl of popcorn which we both LOVE and we were all under a big blanket, while my parents sat on either side of the big U-shaped couch.

The movie was actually really good (Shutter Island – I can’t believe I’d never seen it), and at one point I reached over to grab more popcorn while my eyes were glued to the screen and accidentally put my hand right on my sister’s boyfriend’s dick. I realised when I felt him shift a tiny bit in his seat and immediately moved my hand up to grab a handful of popcorn, but the thought of me touching my sister’s boyfriend’s cock with her right there made me instantly wet. For the next half an hour my mind was barely on the movie as I sat there thinking about the naughty things I could do and I decided I wanted to have some fun. I looked over at my sister who was cuddled into her boyfriend’s shoulder, and at the next ‘scary’ scene, I pretended to be frightened so I could push up closer to him too.

My heart was RACING the next time I went to grab popcorn, as this time I intentionally reached out and rubbed my hand over his dick on my way to the bowl. The bowl itself was blocking my sister’s view of what I was doing, but my dad could have looked over and easily seen. Her boyfriend didn’t react (he couldn’t because he had my sister cuddling him and my parents in the room), but I knew it would be driving him crazy so I decided to keep going. I kept going to reach for popcorn and touching his cock on the way, I could feel him getting harder and harder. At first it was just light brushes, until eventually I was just grabbing a handful of hard cock every couple of minutes. He was THROBBING and I could tell from his strained expressions he was trying so hard not to get caught. If anyone had noticed it would have been an absolute disaster for both of us and the risk just made me more wild and horny.

Eventually, the bowl of popcorn was empty, but he kept it on his lap conveniently right in the right place to obscure my sister’s view of his dick. Feeling brave, I slid my hand under the blanket, slowly worked my way up his thigh and grabbed hold of his big cock through his sweatpants. I can’t tell you how fast my heart was beating as I slowly rubbed it up and down through the fabric – shocked at the size. Every couple of moments I would stop, frozen with fear, thinking the movement was too much and somebody would notice, but everyone was paying attention to the movie.

After another 30 minutes of stroking his big cock, I could feel pre-cum leaking through his pants and I decided to take things to the next level.. I slid my hand carefully under the waistband of his pants and put my hand directly on his rock hard dick. I heard him stifle a moan which he disguised as a cough as I started ever so slowly stroking him up and down. The pure rush of what a risky, naughty, taboo situation this was had made me dripping wet and I loved feeling him pulse in my hand. I deliberately went extremely slowly (half to torture him and half to avoid getting caught) as I jerked him off under the blanket with my sister right next to us. I varied my grip between tight and loose and softly teased the head of his cock until I felt it start to twitch and I quickly wrapped my hand around this head of his dick as I felt it erupt in spurts of warm, sticky cum directly into the palm of my hand. He managed to not make a sound – I was very impressed.

I slowly pulled my hand out of his pants, out from under the covers and brought it up to my face as I stealthily licked his salty cum off my hand making sure nobody noticed.

I can’t wait until next time I go home to visit.

Source: reddit.com/r/gonewildstories/comments/p9tygv/mf_i_made_my_big_sisters_boyfriend_cum_while_we