Taboo threesome?

[WhO2]

Not sure if this topic has ever been covered, but has a couple ever been in a threesome where the third person was one of their brothers or sisters? Not where they both actually had sex with the 3rd but where one did and the other had to be a spectator?

Years ago my wife and sister were good friends, and both were very outgoing and loved to dance together. We partied a lot, drank a lot, but went our separate ways each evening (no hooking up for the girls).

After a couple of years my sis disappeared, and another couple of years later my wife hooked up with a close friend.

For some reason it wasn't until just recently that I wondered what would have happened if my wife had wanted to hook up with her first close friend, my sister? My sis is hot, so I wouldn't have objected at all. Would i have watched (definitely, if they didn't object)? Would i have joined in making sure to steer clear of sis?

The idea is so intriguing that I started a story, but it is the first story I have zero experience in - i have very little idea how some of the parts will unfold. Does anyone have any experience they’re willing to share?

 

[kittycommittee2000]

I often think about fucking two brothers or a father son duo

 

[cuck72]

Back when my wife, her sister and her sisters BF and I were all in our 40's. I had a HUGE! fantasy about my wife fucking her sisters BF. I imagined her sister fucking her BF, then her sisters BF comes over, and my wife is sucking his cock smelling and tasting her sister's pussy all over his cock. I LOVED! to think of my wife's sisters BF comparing both their nice mature sister pussy's.

 

[Adventurouscdm]

My wife and I shared a room with my female cousin and her husband while on a trip to Atlantic City last year. When we left the casino to head up to the rooms my cousin and I were on the first elevator and she asked me if I was going to fuck my wife in the bed next to them. I said ofcourse. So she said, "Ok, I'll face the other way" but gave me that look like she was already imagining it. I told my wife that she wanted to watch and she was all for it without question. Her husband was out cold so we didn't bother trying to hide under the covers at that point

 

[azflyboy69]

I often think about fucking two brothers or a father son duo

This almost happened to me on a cruise once. My brother and I met a girl at the club on the first night and both flirted heavy. She told us on the third night she would pick one of us to fuck unless we both wanted to. My brother wasn’t game and she picked him.

 

[Bigbobnc]

When I was 18 I wanted to experience what a nightclub was. I used to work in a fast food restaurant and the people there was super nice. The whole group got together and we went to a nightclub. After the club everyone wanted to continue the party in a motel. Well my innocent mind didn’t think anything about it. We all got in the jacuzzi and people start kissing. A couple jumped in the bed and she started sucking him. Another couple went to the floor the guy eating her. 2 guys team up with me and wanted me to sucked them both. I was kind of shocked when I felt a hand in my head guiding me to his cock. I sucked him both alternative.
I was having a lot of fun when one of them came in my face and felt sleep, the other guy took him to the floor to sleep over the buzz. After that we both went to the bed and fucked beside the couple. We would look at each other face and have fun. It was an amazing experience.

That sounds amazing

 

[Samtran123]

Well, I wouldn’t call it a threesome. It was actually a foursome with my wife’s sister and her husband.

 

[MrMannson]

When I started dating my ex, there were rampant rumours about her and her sister more than once double teaming on either of their boyfriends. Unfortunately it didn’t happen for me, but years after we broke up, I had my suspicions about her and her sister fucking my buddy one night. Allegedly all three of them slept together in bed one night; I came over to my exes apartment the next morning and her sister answered the door in just her panties. I heard everyone scrambling inside and they acted very suspicious. Nothing was said and it was swept under the carpet.

And my dumb 18 year old self was too naive to realize what happened!

 

[CuriousinPennsylvania]

When I started dating my ex, there were rampant rumours about her and her sister more than once double teaming on either of their boyfriends. Unfortunately it didn’t happen for me, but years after we broke up, I had my suspicions about her and her sister fucking my buddy one night. Allegedly all three of them slept together in bed one night; I came over to my exes apartment the next morning and her sister answered the door in just her panties. I heard everyone scrambling inside and they acted very suspicious. Nothing was said and it was swept under the carpet.

And my dumb 18 year old self was too naive to realize what happened!

I think that you might have also missed an opportunity.

 

[Pabiporffor]

Can't be that many women out there that haven't a least watched another female relative do something.