Ashley & Vanessa Throw Boat Load of Ass Party

5/20/2014 4:31 PM PDT

Ashley Tisdale and Vanessa Hudgens -- Throw Boat Load of ASS Party


Ashley Tisdale celebrated her bachelorette party with pal Vanessa Hudgens on a huge yacht in Miami -- and Ash made sure to flaunt her ass in a tiny thong before it's, y'know ... locked down for life.

Thanks, bikinis!