This impressively-endowed actress of erotic films got her start with Russ Meyer, the director, writer and producer of myriad comic, soft-core porn films. Natividad gained Meyer's attention through winning such beauty contests as "Miss Nude Cosmopolitan" and was cast as a cheery nympho in his "Up" (1976) and starred in the memorably-titled "Beneath the Valley of the Ultravixens" (1979), as one of "six chicks in search of a cluck."