My best friend 'molly' is going out with a year 11 and her and I are only in year 8.
I have spoke to his ex girlfriend who's in year 9, so has molly. She says he uses everyone and used her for sex but he says different and that she's just obsessed with him! To be honest I believe her and we both want the best for molly!

They have only been out a week and a bit but he's already saying he loves her, she's believing every word. He hates me and is always really funny with me, if anyone says anything he goes mental and gets really stressed, He's moving up to Newcastle next week and is leaving molly. He's saying how much he loves her but today he and her went behind a football shed and she gave him a blow job, but it was all his idea and molly just went along with it.

Now I don't no whether to keep quiet and let him break her heart or tell someone and let him be arrested not knowing whether me and molly would still be friends after.

Oh Wow. You need to consult with your parents. In fact, being minors, you should NEVER post things like this on the internet. You could put yourself in very deep danger. I don't want you to reply to me. Just please take my advice: talk with your parents.

Are you in the UK?

Talk to responsible adults-this guy's breaking the law and should be dealt with.

Dude this guy sounds like an ***, but honestly Molly has as much to do with the blowjob as him, anyway at the end of the day the most you cld do is give Molly advice, but other than that its her decision, and if the guy keeps making fun of you tell him to back the **** off cause you guys ain't boys or anything like that.