G-strings ain’t just for chicks … just ask golf superstar Brooks Koepka!
The #1 ranked PGA player in the world decided to thong out for a friend’s birthday party in Florida on Friday — and it’s clear … dude ain’t shy about it!!!
The 29-year-old butt-flossed up and bared his bod while drinking beer on a Pontiki boat in South Florida … and tested the thong durability when he jumped off into the water!
The theme of the party seemed to be some sort of redneck vibe — at one point, Brooks was rockin’ a shirt that read, “Save a Horse, Ride a Cousin.”
BK’s hot girlfriend Jena Sims got in on the costume fun — sporting a bathing suit inspired by that neon green man-thong from “Borat.”
The birthday boy is a friend named Dan — so … HAPPY BIRTHDAY DAN!