After ‘Weed Day’ Comes The ‘Pool Party’! Rihanna Slips Into A Tiny String Bikini To Enjoy More Natural Pleasures :    It’s what she does best. And after celebrating ‘weed day’ with her girl pals, Rihanna decided to slip on a string bikini and relax poolside.

Of course, it would be rude not to share her racy antics with fans – and the Diamond singer posted a series of revealing snaps on Twitter, showing off one of her best assets.