I have a 16 year old son who this last month or two has taken to staying out all night perhaps for 2 to 3 nights at a time. He says he stays with his girlfriend and her family which I believe. He gets very embarrased if I ask any questions about girls (always has) so I do not know his girlfriends name or the exact address of where she lives, only the town. I do trust my son but of course you worry and what I would like to know from other mums is do you think I should be doing anything else or just let him be. He says he's fine and I shouldn't worry about him but of course you do. He looks healthy and happy.