Former playmate Kendra Wilkinson had a secret rendezvous with her ex-boyfriend, Shawne Merriman, behind-the-back of husband Hank Baskett, Breaking Celebrity News is exclusively reporting.

According to a source, Wilkinson -- who is now eight weeks pregnant with her second baby -- met up with Merriman in San Diego last June.

“She went to San Diego alone without Hank,” the insider told Radar.

“Hank stayed home with the baby, while she had an appearance at a club. Shawne was there."

The source continued, “Kendra and Shawne dated for a while and they had a pretty volatile relationship. They've always had feelings for each other. He was there on this night and they hung out.”

Merriman, nicknamed "Lights Out", played in the National Football League from 2005 to 2012 for both San Diego and Buffalo.

He is also the former boyfriend of reality star star Tila Tequila.

What's more, the San Diego rendezvous wasn’t the last of Wilkinson and Merriman's secret meet-ups!