34m college confession

My senior year in college I (21m) at the time lived with 2 friends in an apartment. We’re all still friends to this day, and one of my friends is married to the 20f at the time who is the subject of this story. My friend we’ll call him Jason graduated a semester early and left to start a job in another state. His girlfriend, Mary, hung out with me and our other roommate fairly often and we all went out together as we had the same friend group.

It was the Saturday night at the end of spring break and she came back from visiting her family and came over to hang out and drink as we’d done plenty of times. We got pretty drunk and the conversation turned more flirty and sexual. She decided to stay in Jason’s room that night and we went to bed. I ran into her coming out of the bathroom in just a shirt and her thong. The tension was very thick I’ll never forget that feeling. I kissed her and grabbed her ass and we went to my room to fuck. Next morning we both had regret and decided never to mention it.