I Almost Slept With My Boyfriends Sister

Hey I just need to get this off my chest.

So my boyfriend and I have been together for almost 2 years, we've known each other for 10. I was always friends with his sister even when we weren't talking but her and I have gotten closer since him and I have been together.

I've always had a thing for girls I've never acted on it, I really had feelings for this girl at my last job but I never told her and we never hung out outside of work. But the feeling I have for women has always been there.

So last night I went over to my bfs sisters house, her boyfriend and mine went somewhere to get parts for her car and run a couple other errands. We had a lot of shots of tequila and I mean a lot. We've always joked about sexual stuff while being together but something last night changed. She just grabbed me while we were dancing and we started making out. She ended up fingering me and rubbing all over me, I was doing the same to her but we broke apart realizing we fucked up. But the rest of the night we couldn't stop touching each other. Our boyfriends got back and we never said a word. This morning she called me and said it can never happen again and I agree. We are taking this to our grave.

But I kinda want to do it again.. I do feel remorse bc I love my man so much. But maybe it's my calling to be with a woman or IDK if it's just her. I'm so confused.

I know I'm an awful person