We had been dating since HS and she followed me to college, as I was one year ahead of her. We had a fine relationship for a while, but it got rocky and lasted way longer than it should have. She cheated on me one summer and ultimately broke it off with me, after 5 years together, around Christmas.

The biggest problem was that we had already planned a couples trip to Disney World with her best friend and a guy she liked for spring break. It was already fully paid for, so either we went or we lost a lot of our money.

We decided to keep everything as is. My ex, now dating the guy she cheated on me with, and I were going to share a room next to her friend and 1. I hated my ex, but we were mature enough to deal with it and push through. Side note: I later learned from another friend that my ex was worried that I was going to make some last ditch effort to keep her and propose to her while down in Disney. Seriously?!? I'd known for a long time that I had no desire to marry her. Anyway...

What began as a miserable experiment of the human experience turned out to be one of the most fun vacations I've ever had. My ex was the only one who was not yet 21, so she'd stay back at the hotel while we went out at night to the bars for drinks. Of course I loved that, coming back drunk with her just there watching TV or sleeping.

This was spring break, so there were college students all over the place, everybody having a great time. Her friend's crush turned out to be a total dick when drunk, so she and I began to bond throughout the trip. We'd make eye contact whenever something annoyed us, rode rides together whenever the others didn't feel like joining, even platonically shared a few desserts, and generally began to feel this weird and exciting tension building between us. Of course, I thought it was only one-sided at the time.

Vacation finished and we returned to our homes before going back to school. Within a day or two of returning, we bumped into each other at the elevator in the dorm (we were both RAs). As we got on, I said "I really had a lot of fun last week, it was so much better than I expected." And she agreed and repeated the same, only our eyes were locked the entire time, both with awkward smiles.

The elevator stopped at 5 and as she went to leave, I sort of instinctively grabbed her hand and she spun around and looked at me. Nothing was said, but the door closed and we both kind of knew what was going to happen. We got up to 7 and we walked out together, to my room.

Once inside my room, standing face to face, I said something like "are you sure?" and she immediately kissed me. What happened next is like a haze, but all bets were off and we both knew what we wanted. We stripped each other down, kissing all over with each piece removed and I directed her to my futon (which squeaked A LOT). We took turns on each other before I pulled her to the edge of the futon, got on my knees and began to fuck her. It was the most incredible 45 seconds ever. 😂 I'd never, ever been so turned on and there was nothing I could do about it.

She didn't seem to care that I didn't last, it just felt hot that it had finally happened between us. On my knees, her laying back on the futon, I grabbed her hand and pulled her up and over to my bed. We laid down together and I told her I wanted her to stay as long as she could. She stayed for another 4-5 hours or more before she had to go. Between more rounds of sex (which now lasted far longer), cuddling, teasing/tickling each other, we talked about anything and everything and just had the most amazing time together.

We hooked up several more times that semester before she and my ex moved into an apartment together and we just sort of drifted apart after that.

So yeah, I had amazing sex with my ex girlfriend's best friend and I don't think she ever found out about it.