Jennifer Lopez and Casper Smart haven't even officially confirmed their relationship again, but it looks like there are already rumors that say he might be cheating on her - emotionally, at least. A new report says Smart has been "hooking up" with a Lebanese singer while also keeping Lopez in the dark about his secret relationship.

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According to In Touch Weekly's print edition this week (via Gossip Cop), Smart has been getting up close and personal with Lebanese singer Haifa Wehbe. Smart choreographed the music video for her hit single, "Breathing You In," and began their "steamy affair" shortly thereafter.

Lopez allegedly got a hold of Smart's text messages to Haifa and supposedly told him to "cut all ties" with her immediately, even though he was to work with her on her next music video.

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 A source close to Lopez and Smart says the rumors are completely untrue and that Smart had only seen Wehbe one time on the street since the two worked together on her music video.

According to People Magazine last Friday, while Smart doesn't flat out say that he and Lopez are officially dating again, he does hint that the two are definitely close. The two dated for three years until Lopez pulled the plug on their relationship last summer.

He said, "We're just having a good time, just being ourselves, that's all."

Keep up with Enstars for all the latest news on Jennifer Lopez and Casper Smart.

Tags: Jennifer Lopez Casper Smart