17-year-old David and his mum Monica lead separate lives. He's got the sort of freedom most teenagers would die for, but he just wants his mum to be a mum. 16-year-old CJ's mum Patricia has very strict house rules - sex is banned and his bedroom door must stay open if girls are in there. Abby Standen has been allowed to sleep with her boyfriends at home for the last three years, but as the number of partners has grown her parents are changing the rules.