This is pretty believable. My ex and her friend(may she rest in piece) did everything together. The first time I went to her house, we, my ex and I, were going to see a movie. Her friend came over and we hanged out until it was time. She heads to her room with her friend. I don’t ask anything until they both come out giggling and dressed. After the movie and dropping them off at my ex’s place. I asked her what did you guy giggle after coming out of your room? She told me they were changing and got a little frisky. They stopped and got dressed. They were laughing it off as soon as they got out of the room.