My 15 year old son has a first girlfriend who is a year older. My concern is that she lives with her dad only and quite often is home alone. My son has been there twice already and one time I made him leave because the dad was not home. I am besides myself about how to handle this. He said that he is not going to have sex with her but you know how that goes. I know what I was doing at 15. Do I make condoms available? But that would be condoning it. I will have a talk with the girl about not hanging at her house. They are always welcome at mine and I will try to speak to her dad about it.