Justin Timberlake and Jessica Biel on the verge of breakup?

Lending more credence to the rumor that their relationship is a sham, a source tells OK! that Justin Timberlake and Jessica Biel have been fighting a lot lately. Mainly over Timberlake flirting with other girls. One’s whose traps don’t outsize his.

“Justin has always loved women – singing about them, looking at them, flirting with them. He can’t help it!”

“Jessica’s seen Justin flirt, but says it’s all in good fun,” the pal tells OK!. “But she has told him that if they get engaged, it’s got to end. Things seem a bit tense with them, but they’re trying to get past the rough patches.”

It also sounds like he wants Jessica to move out.

“Justin asked one of his longtime best friends how much time he’d need to give Jessica if he asked her to move out of their New York City apartment without seeming like a jerk.”

The only reason Justin hasn’t ended it is because he’s scared. If ever he breaks it off with Jessica, Justin is going to get his ass beat like Rihanna, but even worse. He’ll be telling the media that he ran into a door and that Jessica is only like this when she drinks and that, “I don’t want to talk about it.”