I am a mother of two teenagers. My boyfriend has three teenagers, one in particular is an adult child of 19. The past 6 weeks her boyfriend has been sleeping over every other night, the rest of the time she goes to sleep over at his house. I find this somewhat unacceptable and uncomfortable. I have talked with my boyfriend about it and all he says is "well, she's an adult now, so she makes her own decisions." But having 4 younger teenagers in the house, I feel it's inappropriate. But he seems to be okay with it, and it drives me crazy.