My DD has been with her BF for 18 months, he is 16 and has just left school. We are open and I know that they are sleeping together and she is on contraception accordingly. She has been asking for some time now to sleepover at the Bf’s parents, they are open to this scenario. My Dd says all her friends who are in long term relationships are allowed to have sleepovers with their BF’s at the same age. I do know of one friend who is definitely allowed to do this. For context we do not have the space for the BF to stay here as my DD shares a bedroom so the sleepover could only happen at the BF’s where they have ample space. Please help me settle the argument as I think I shouldn’t allow this until she turns 16 in April.