These famous siblings are at odds because one slept with the other's man. This celeb is pissed at his famous ex because she had sex with one of his friends. Even when it's blind, betrayal still stings.

1. "These sibling stars are currently so full of resentment towards one another after one sister slept with the other's boyfriend that they've each got a different source that they've started blabbing gossip to. If you start hearing printed gossip about either of these siblings, you'll know that the source runs in the family." [BuzzFoto]

2. "Why is this talented Guy still so bitter about his Ex? The explanation goes back to one particular event: Guy and his Ex—who is a celebrity in her own right—were each at their respective homes in Los Angeles. He asked her to come over to his house for a little afternoon snack of frank and beans (which she did quite often). On this particular occasion, though, Ex she said that she couldn't come over because she had to do something with her husband and child/ren (yes, she is married). Guy later found out that this was a total lie. It turns out that she did she not spend the day with her family. Instead, she spent the afternoon snacking on one of Guy's friends. To say that Guy was boiling mad when his friend gave him the intimate details would be a huge understatement. He never got over the fact that Ex 'cheated' on him with one of his friends, and has been bad-mouthing Ex ever since." [Blind Gossip]

3. "Which infamous Hollywood philanderer may be getting a taste of his own medicine? A screenwriter has been boasting about hooking up with the legendary bad boy's new fiancee and telling people the wedding 'won't happen.'" [The Daily]

4. "Which hypocritical homosexual TV exec fired a reality show assistant for being 'too gay?'" [The Daily]

5. "Which Hollywood journalist recently quit his job after his editrix ordered him to tell a publicist they were on her hit list?" [The Daily]