Robbie Kidd claims he and Teen Mom 2 star Leah Calvert "had sex" in early October.

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After denying the affair initially, Kidd has reportedly come clean, claiming he and the reality star engaged in an inappropriate relationship during Calvert's marriage to husband Jeremy.

“I asked her if she wanted to come over and talk,” Kidd told Radar Online. “Leah didn’t hesitate. She came right over, and one thing led to another and we had sex. We wore protection. That was the one and only time.”

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On Oct. 17, a short time after the alleged affair happened, Jeremy took to Twitter, where he slammed the mother of three, claiming he "caught" her with "Mr. Kidd." Days after Jeremy's messages were posted, both Leah and Kidd denied doing anything of the sort.

Now, Kidd is telling a very different story. “Whenever things are going bad in our lives, we reach out to each other, and this is what happens,” he explained. “Leah felt really alone because Jeremy’s gone a lot for work. She said Jeremy doesn’t care about her or their family when he’s gone. All he wants to do is talk about sex.”

While Leah and Kidd may have a history together (Leah slept with Kidd hours before marrying first husband Corey Simms), Kidd has no plans for a reconciliation and recently got back together with his ex-girlfriend.

“We’ll always have a connection, but I’m tired of the drama,” he said.

Tags: Leah Calvert Robbie Kidd Teen Mom 2 MTV Reality TV Jeremy Calvert