Jeff Probst: How I Buffed Up for My Naked 'Two and a Half Men' Scene

"Survivor" host Jeff Probst certainly isn’t getting voted off any island now that he’s showed off what a ripped body he has!

On Thursday night’s “Two and a Half Men,” Probst made a cameo — a naked cameo. The Emmy-winning host flaunted well-defined abs and pecs, as well as some serious guns. He played the bacon-carrying boyfriend of a woman that Walden (Ashton Kutcher) was trying to pursue.

When Probst chatted with Yahoo TV about his nude guest starring role, he revealed that he puts in a lot of effort to stay in shape.

"When you’re 20, you can party all night, wake up, do five push-ups and you’re good to go. I’m not 20 anymore, so if I want to stay in shape I have to get my butt out of bed and move my body," he told us.

[Related: Jeff Probst Shares His Pop Culture Obsessions]

He jokingly added, “I’ve been working out for 10 years just waiting for the day Chuck Lorre called to say, ‘Hey, wanna be naked on my show?’”

As a reality host, Probst hasn’t done much acting, but he said he had a blast on the set of “Two and a Half Men.”

"I’m friends with Jon Cryer, so it was fun to work with him. In fact, just before I shot my only scene, he showed up in his underwear as a sign of support!" Probst said.

[Related: Jon Cryer’s Hair-Loss Confession: His ‘Two and a Half Men’ Mane Is Fake!]

"I’d never met Ashton, but he couldn’t have been more welcoming. It was definitely a career highlight."

It was definitely a highlight for Probst fans, too!

"Two and a Half Men" airs Thursdays at 9:30 p.m. on CBS.