Article continues below advertisementKylie Jenner's best friend Stassie Karanikolaou wasn't afraid of showing her new curves months after revealing she underwent BBL reduction surgery.Karanikolaou, 28, turned heads by posing in a tiny, black string bikini in new sultry photos posted via Instagram on Thursday, December 18. In the photos, the influencer rocked wet hair and big black sunglasses as she posed poolside.