Credit: Jordan Strauss/

Greek star Gregory Michael -- the recipient of tiny kisses from Vienna Girardi at a June 20 Santa Monica event -- tells the reality star, 24, lied during her post-split reunion interview Monday with Jake Pavelka.

When Pavelka, 32, accused Girardi of getting cozy with Michael, 29, she flat-out denied it. "There [was] nothing," she said.

"That's a lie," Michael tells Us. "We definitely made out that weekend and Vienna made it very clear that it was over between her and Jake."

Though Girardi insisted they only danced for less than "nine seconds" at another event, Michael tells Us, "I wouldn't say we danced for a few seconds. We did dance as a group all night. We also danced alone for parts of the evening."

He says she did tell the truth when she told Pavelka that she hardly knew him.

"At the time the interview was conducted, we hardly knew each other," says Michael.

But he took aim at Pavelka when the former Bachelor star referred to him when saying, "That boy told me you cheated when he went on-the-record."

"I never said she cheated," Michael tells Us. "I said we hooked up and she said they were broken up. I would never do that if she was in a relationship."

He says he doesn't know anything about Pavelka's claim that Girardi hooked up with other guys.

Says Michael, "I don't know what flings Jake is referring to as those guys weren't me."