02/07/2014 10:26 EST | Updated 02/07/2014 10:59 EST

Crystal Harris Poses In Sexy Bikini Selfie Without Makeup (PHOTOS)

Crystal Hefner/Instagram

When the hubby's away, the Bunny will play.

Crystal Harris a.k.a. Mrs. Hugh Hefner turned up the heat on Thursday when she posted a sexy bikini selfie on Instagram. The best part about the pic? She wasn't wearing a hint of makeup! (At least, not that we could tell.)

"Good morning #nomakeup #nofilter #imtired," wrote the 27-year-old Playboy Playmate, who made tired look good thanks to her messy chic updo and fresh face. (There must be something in the water at the Playboy Mansion which makes all the bunnies look good.)

But Hef's No. 1 girl wasn't too tired to try on a few revealing bikinis. The blond bombshell showed off her centrefold figure in a tiny teal blue two-piece with a silver trim and and metallic embellishments.

And, realizing that playing dress-up in the Playboy closet was tons of fun, Crystal showed off yet another bikini on Friday; this time a red two-piece which featured crystal embellishments.

Looking good, girl!

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