Singer/Actor Justin Timberlake and his “Friends With Benefits” co-star, actress Mila Kunis, have been spending a lot of time together shooting the movie, but they have also been having a lot of fun and getting cozy between takes. Are Justin and Mila real friends with benefits?

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“He is absolutely obsessed with Mila,” a pal tells US. Adds another: “He’s smitten!” Justin and his girlfriend Jessica Biel continue to keep a very low-profile relationship, which seems to miss that spark Justin got with Mila. Is Justin cheating on Jessica? Therefore, is Mila also cheating on her boyfriend Macaulay Culkin?

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Justin’s rep quickly shut down the rumors, claiming there is “absolutely no truth” to the reports. Justin doesn’t seem to be interested in a relationship with any girl at the moment as he is totally focused on his acting career. And Mila and Macaulay are still so young yet they have been dating for more than eight years. It must be true love!

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Mila Kunis & Justin Timberlake “Friends With Benefits” Set Pictures

[images: wenn.com]