It's doesn't get sexier than THIS! Rihanna's getting her fans all hot 'n bothered with these sultry snaps of her modeling her new lingerie collab, Savage x Fenty.

Rihanna's no stranger to the fashion world -- or to health and beauty, for that matter. She's had the River Island line for years, she's collabed with Puma and Dior and she's rumored to be launching a partnership with LVMH later this year ... PLUS, she's got her cosmetics line Fenty Beauty. Her lingerie line launched last year and she's using Instagram to promote her April drop which looks AMAZING -- you've gotta scroll through the gallery to see the ever SEXIER snaps!