Serena Williams shows off her her sexy body

Serena Williams no her Instagram account Posted a very sexy shot , the tennis star showed off her pert posterior  looking incredible as she wore a red high-leg swimming costume to hang out with model and actor Colton Haynes and a female pal at San Marco river in Texas.

Proud of her curves, the 34-year-old posed in a playful manner while holding a matching rubber ring in her hands.