Double date turns kinda wild

Sooo my bf and i went on a double date with my brother and his gf at a fancy restaurant out of town cuz we were going to a concert the next day and it was really nice. After that we went back to our hotel rooms, we had 2 rooms next to each other so we all went in one room to hang out. After like 30 min, my bf and i went into the bathroom and when we came out my brother and his gf were kinda… enjoying each other and my bf wanted to do it too so i said yes cuz i was kinda tipsy…