My Girlfriends Ex Girlfriend

I was around 18 or so when I found out my current girlfriend had a exgirlfriend I was curious about it and she wouldn’t talk about her so I found out who she was and met up with her. There wasn’t any plan I had but to talk to her which 1 thing led to another as we talked.we met at a pavilion in a secluded part of town I don’t know why there but I think it was her choosing.well we talked for an hour and I somehow ended up eating out right there.it happened so fast it was crazy I remember her pulling her sweats down with 1 leg I. Them while she stood up and had me eat her right then and there that was it for that night but she wanted and I guess I wanted more. So we ended up fucking several more times on the sly till we both lost interest and went our separate ways I Sunce ran into her and it was really awkward but whatever we were young and dumb and I found out my gf was fucking someone else so I felt not as guilty but oh well it was kinda fun