Watch Out Jessica Biel & Macaulay Culkin! Justin Timberlake & Mila Kunis Are Getting Close On The Set Of 'Friends With Benefits!'

Wed, September 1, 2010 10:25am EST by 5 Comments
Clockwise from main:, Fame Pictures, Getty Images

Clockwise from main:, Fame Pictures, Getty Images

Hopefully for Jessica & Macaulay’s sakes, Mila & Justin don’t LITERALLY become Friends with Benefits.

Uh oh! Jessica Biel better keep a close eye on her boyfriend Justin Timberlake because it looks like he may be hitting it off with Macaulay Culkin‘s longtime girlfriend Mila Kunis on the set of their new romantic comedy Friends with Benefits.

On set Aug. 31, Justin looked as if he can’t keep his hands and eyes off of Mila as he helped her down from a chair and edged up next to her, interlocking his fingers with hers. And Mila just couldn’t hide her growing smile as Justin got closer to her.

Maybe all of this onset interaction is what’s making Jessica so gloomy lately? Is she worried that her man may be taking it to the next level with Mila?

If so, Macaulay better be on guard too. He doesn’t want to lose the love of to JT!

Mila and Macaulay have been dating since May 2002 and Jessica has been with Justin since early 2007.

— Lindsey DiMattina