Actress/model Kelly Brook stars as a skinny-dipping coed in director Alexandre Aja’s creature-feature reboot Piranha 3-D. Despite the film being one of this summer’s most eagerly anticipated popcorn-films, Brook isn’t quitting her day job.

The curvy 30-year-old looker has unleashed her bare bottom and 34-E’s in the July issue of “Loaded” magazine. Brook reveals to mag that she thinks her breasts are too big for her frame (blasphemy!) and that she fucks regularly to stay in shape.

Brook began her modeling career at the age of 16 after winning a beauty pageant her mother enrolled her in (Note to parents: It’s important to recognize and nourish the potential your daughter’s large breasts can have) .

Piranha 3-D arrives into theaters on Aug. 27. Brook’s horror creds include Survival Island, Removal, House of 9, and Ripper.