Mila Kunis & Justin Timberlake enjoying at LA: According to the Hot Stuff section of Us Weekly, Justin Timberlake is “betraying” girlfriend Jessica Biel with Mila Kunis, who plays his love interest in the upcoming Friends With Benefits.

The magazine’s source claims Timberlake is “absolutely obsessed with Mila,” with another tipster describing him as “smitten.”

“Justin has strayed before and he’ll do it again,” says an Us source, with the weekly observing that his “well-known wandering eye” has landed on women including Rihanna (um, except it actually didn’t).

And even with a Kunis friend telling the magazine that she “would never go for a guy with a girlfriend,” let alone Timberlake, who’s “not her type,” Us Weekly still refers to “Justin’s New Betrayal” on its cover.

There was never anything to previous claims of a budding romance between Kunis and Timberlake — and there still isn’t. A rep for Timberlake confirms to Gossip Cop, “There is absolutely no truth to it.”