Selena Gomez celebrates 22nd birthday with Cara Delevingne in bikinis aboard Saint Tropez yacht

After being spotted in a white swimsuit aboard a yacht with British model Cara Delevingne, pop princess Selena Gomez was seen frolicking with her new pal and a mystery man. The brunette celebrity turned 22 on Tuesday, and was seen having a good time with Cara. Selena wore a pair of high-waisted undies styled with a black bikini top, while the lean model wore a skimpy black bikini. The two were also seen jet skiing and paragliding, and Selena also cuddled up with her mystery man. Later on Cara threw on a pair of printed shorts and a Chanel tee, and was seen with a floral bouquet in her hands, probably meant for Selena.