Penny has a sexy bikini bod!

Kaley Cuoco posted a snapshot on Instagram Thursday, giving "Big Bang Theory" fans a glimpse of a sexy scene with costar Wil Wheaton.

In the pic, the blonde beauty is showing off her fit figure in a pink multi-colored bikini top with a matching sarong, which covered her black bikini bottoms. Her funny co-star is sporting a blue two-piece on top of a red gorilla costume.

"In honor of tonight's @thebigbangtheory Wil Wheaton and I making a 'movie,'" Cuoco captioned the candid photo.

The actress clearly is comfortable with her body!

In the latest issue of Cosmopolitan, the 29-year-old actress admits to getting breast implants back in 2004 when she was on the show "8 Simple Rules."

She told the mag that she has never regretted it and even calls getting her boobs done "the best decision I ever made."

We're sure her hubby, Ryan Sweeting, would agree!

What do you think about Kaley's plastic surgery confession? Tell toofab in the comment section below, and click "Launch Gallery" above to see more celebrity beach bods.

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