Cameron Diaz, Justin Timberlake back together? Yes! Onscreen

jessica-justin-cameron.jpgWeb word is tha t Cameron Diaz fought long and hard to get back with her ex, Justin Timberlake. And it worked.

He's now her leading man in a sexy new comedy, "Bad Teacher."

Cameron kept telling the studio that she wanted Justin over Bradley Cooper, Paul Rudd or Ryan Reynolds. "Cameron melted down and really pushed it," an insider tells OK!. She even showed them clips from Justin's comedy "The Social Network," about the birth of Facebook.

But part of her plan was also to spice up the love scenes.