Article continues below advertisementHailey Bieber is not shy to show off her booty.The model, 29, turned around and flashed her backside in a series of photos shared by her beauty brand, Rhode, on Friday, May 15.Bieber rocked a skimpy brown thong and a matching, triangle-shaped bikini top. She complemented her swim look with a chocolate-colored cardigan and strappy yellow stilettos as she posed with her products in front of an infinity pool.