A group of girls threw a bachelorette party for me, and we went around to a bunch of dance clubs. Towards the end of the night, we couldn't find my sister-in-law. A friend and I were walking by a crowd of guys when we found my sister-in-law on a bar stool in the crowd with a guy standing between her legs. They were obviously having sex! Her skirt was pushed up and he was grinding on her big-time.
I yelled her name and she slurred back "What?" My friend and I had to physically pull the guy off of my sister-in-law. Luckily we did, he had no condom on but didn't cum in her yet. Hopefully he didn't have any diseases.
So now do I tell my brother? She was sort of out of it, but not so far gone that she doesn't remember. She is begging me not to tell since they didn't "go all the way" in her words. I say she didn't use a condom so it's still unprotected sex.


