If they can't figure that out without your help.........that's very sad and I hope they're ready for their 15yr old to get pregnant by this man because that's what's next. But there are too many times, parents that forbid relationships and it does not work out that way.. Who on earth would want to date an almost 30 year old man while in high school? And what grown woman would want to date an almost 30 year old man that dates, barely teen girl, Yuck? Instead, I would suggest this girls parents meet with both of them and let them know that if they want to see each other it has to be in their home and with the parents there.. I would also let this man know, they need to do a background check on him immediately, so they will need his Drivers license and his social security card.. and that the girls parents want to meet his parents.. If he gives the excuse they live far away, have him give them their phone number and address and call them in front of him.. If he says they passed away, tell him they are sorry to hear that, but the background check will need to also confirm this.so this is a way to let the daughter will be able to see the real person this man is.. I know it is against the law for them to have sex, but not to be friends.. Then each time he is in their home, have set times for when he needs to leave. They also need to inform the school that this is what is going on and how the parents are going to handle this..I would also call the police and notify them of the situation.This isn't just about rebellion from the parents - this could very well be an abusive situation. His friends are probably laughing at him, or better yet, he is hiding it from them out of shame.

She needs to tell her daughter to end this "friendship" immediately and if she doesn't, she will call the police and have him arrested. I'm sorry, but no normal and well adjusted 28-year-old man wants anything to do with a 15-year-old.There is no dating between a 28 year old and a 15 year old. If your friend doesn't have the courage to shut it down.You must step in and call the authorities from the police to child protective services. If I knew more I would be making the calls right now.If I were the parent I would sit down and have a talk with my daughter about my concerns with the relationship, steering it in a direction where the relationship could end.If she didn't do it willingly, I might get the police involved.Even if they aren't currently engaging in sexual intercourse, he wants to have sex with her. A 13 year age difference may not mean much later in life, but with this child still being a minor - this should cause great concern for everyone involved.If I were the parents of the girl, I would have a long talk with the man, forbidding him to see my daughter.