'Teen Mom' Leah Messer Looking Very Tanned & Fit In Bikini

'Teen Mom' Leah Messer has only been single a few months but she's out there making Cory sorry it didn't work out by sporting a teeny bikini while on vacation in Florida.

Leah and soon-to-be-ex-husband Corey Simms have two twin daughters together, although you'd never know it by looking at these photos of her on the beach.

Her daughters, Ali and Aleeah, are adorable...look at those chunky little legs!