This weekend I had dinner with some ex-classmates including my first girlfriend who I hadn't seen in 7 years

We had dinner at a restaurant and everything was fine.

After dinner, we stayed outside the restaurant talking and someone asked for a ride home.

I drove two ex-classmates home and then the last one.

When we were alone under her house, we talked a little about how our lives were going.

We also talked about our relationship and while we were talking about it we couldn't resist and we kissed. We stopped because we knew it was wrong but we couldn't resist and we started again.

So she invited me to her room and we had sex.

The sex was really good and she is much better than 7 years ago.

I feel guilty for cheating on my girlfriend but at the same time it was very exciting