Nathalia Ramos shows off her toned tummy in a teeny tangerine bikini at the beach in Los Angeles over the weekend.

The 19-year-old actress tweeted, “Beach day with @piersonfode ?” The two played around in the ocean and on the sand with a fun game of football.

Pierson added, “such a fun day and great workout! #run”

Nathalia just wrapped filming on Resident Advisor, opposite Kim Hidalgo. The flick is about three college freshmen who tackle their first semester under the guidance of their legendary stand-in R.A.

10+ pics inside…