My 15yo girl has just met a 17yo boy. Seems nice and I'm ok with it but he has just invited her to a party in the town where he lives and said she can stay over. Now I don't want to come across as prudish and I don't want to stop her going to the party but is it unreasonable to say no to her staying over and offering to pick her up at 11 pm? Any advice welcome 😊