My best friend is dating a total slut. I know she's slept with at least two guys regularly while dating my friend, before she ever had sex with him. When he was reasonably close to assuming something, she slept with him to keep him around. I know the two guys she's scrumped, one's a dick and the other's an ass for not saying no. He hangs out with my friend sometimes! What I want to do is reveal this whole situation to my friend while she's present, but in a way that's not directly obvious, however I want her to become defensive. I'm thinking I'll phrase it as a book I've been "reading" about this girl who lives with her dad, and she's got a boyfriend that cares about her a lot. Despite this, she feels the need to form intimate relationships with other guys, while keeping her boyfriend unassuming and blind by being so nice and acting like his girlfriend. The guy's best friend finds out and has no idea how to break it to his friend in a manner even remotely believable, or in a way that wouldn't destroy the friendship simply because of how much he knew. The problem is that the girl doesn't realize what she's doing is wrong, and in fact probably doesn't know how to stop. All that matters is that she's got her "real" boyfriend, and soon she'll move in with him. How the fuck am I going to save my best friend? This is seriously one of those situations where a person's life would be destroyed if something's not done. The first of the other two guys I mentioned, the dick, was her first serious boyfriend. She utterly crushed him. They were going to get married and she dumped him; She had been seeing someone else the whole time. Not my friend, though. She's like some sort of female player.