I do not know if I am overreacting. But have spent all day with my best friend and a guy she's dating. We have been joking and having fun all day. Towards evening we also had a few beers (not the guy) it was late so I said they could sleep on the couch, but that they are not allowed to have sex on the Couch, but shortly after I have gone to bed I hear moans from the living room and get irritated over it. My best friend promised that they wouldn’t have sex, but yet they did.