Kim Zolciak is no stranger to showing off her body on social media, and in her latest post, the mother-of-six turned her backside to the camera for one productive trip to the spa!

In a pic posted to her Instagram account, the 37-year-old lays facedown for a butt-tightening procedure, captioning the intimate shot, "Venus Freeze at Magnolia Med Spa this morning! Gotta keep my shit tight! #BeachBoundTomorrow #LastWeekBeforeIStartFilming #StarBucksInHandOfCourse."

According to the company's website, the treatment is meant to "reduce aging through thermal magnetic rejuvenation."

The former Real Housewives of Atlanta star openly talks about her love of Botox and plastic surgery, but has continually denied Photoshopping images that she shares with fans.

RELATED: Kim Zolciak Posts Another Controversial Photo Featuring Her Two Teenage Daughters

In a recent video posted to her page, the blonde beauty insists there's "no need to photoshop" her killer bikini body!

Scroll down to see Kim's remarkable transformation over the years.