My sister and i went to a christmas cosplay party on the 26th. Met a really charming and hot guy there. My sister was very interested in hooking up with him. I'm a bit more on the shy side of things and don't really hook up often, so i thought they will go to have fun later, but it seems the guy was more interested in me than her. So i tried my best to be a decent wing girl and get her laid with him while i had his attention. We went out to eat something afterwards together and went home with him.

Then i wanted to excuse myself so my sister and him could get it on, but before i even left our place he pulled me back in and was like "where are you going cutie?" etc.

He was very clearly hoping to score big that night and i'm just gonna make a long story short, after some hesitiation between my and my sister, he did and we had a threesome. At the time he thought we were just roommates.

Then after the first time, me and my sis were just sorta cuddling after sex and i must have said something that tipped him off, because he suddenly rose up from the bed and was like "No way, you are sisters?!" and that's when we had to admit it, and let's say he was very physically excited about that. It's like his batteries were overcharged and he kept having sex with us all night until we were all spent. He was even demanding some very specific things, like making me and her share his cum, things we became increasingly comfortable with as the night went on.

Then the next morning, he was full of energy again, and outright demanding we three take a shower together, which we did, until we were all fully spent again and eventually, he left.

I thought this was a weird yet amazing one-off experience, but my sister told me earlier today she invited him over again for new year's eve.

F24 Had a threesome with my sister F25