My neighbor's son who is 17, and like part of the family,had his girlfriend over to watch a movie one night. They had a quilt over them. After awhile I heard sucking sounds. The girl's head was under the quilt. I knew what she was doing, but didn't let on. After a while the quilt slipped onto the floor, but she just kept sucking till he came. She sat up and finished watching the movie. I wasn't sure if I should have acted angry or just let it go. I decided to not embarrass her. Should I try to talk to them about it?
How old are you?
Is it your house? Are you the adult who owns or rents it?