
According to her Web site, Samples was approached while in Marina Del Rey, California to do pin-up modeling. During the course of the 1960s, she appeared in numerous black and white magazines in "cheesecake" poses.
Over the years, Samples performed as an exotic dancer. She appeared in numerous men's soft-core publications, including Juggs and Gent.
In addition to appearing in pornographic movies, she also appeared in some B-movie campy roles, including the leader of the Amazonian lesbians in the 1974 science fiction spoof Flesh Gordon. She also appeared in the action spoof Superchick (1973), the Russ Meyer sexploitation films Up! (1976) and Beneath the Valley of the Ultra-Vixens (1979), and the Australian softcore film Fantasm Comes Again (1977). She was often billed as Mary Gavin.
In 1979, she performed with John Holmes, Johnny Keyes, Serena, Uschi Digard, Kitten Natividad, and Kelly Stewart in the pornographic film John Holmes and the All-Star Sex Queens from Zane Entertainment Group. In those same years, she also took part in some "sexy wrestling" short-footage films, too, mainly for Triumph Studios and Ron Dvorkin's Bellstone.

Fantasm Comes Again
1977 · as Frances

Up!
1976 · as The Headsperson (as Mary Gavin)

Beneath the Valley of the Ultra-Vixens
1979 · as The Very Big Blonde (as Mary Gavin)

Flesh Gordon
1974 · as Chief Nellie

Prison Girls
1972 · as Susie (as Ilona Lakes)

Pandora Peaks
2004 · as Herself

Fantasm
1976 · as Belle

The Cocktail Hostesses
1973 · as Woman at Orgy

Superchick
1973 · as Lady on Boat

Big Bust Loops Volume 1
2009

Electric Blue 15
1984 · as Katrina (segment "Bobby's Boobies")

Bust Out
1973 · as Mrs. Brown

Deep Jaws
1976 · as Henrietta

40 Plus
1987

Breast Orgy
1972

Best Chest in the West
1984 · as Candy

Electric Blue 19
1985

The Amorous Adventures of Don Quixote and Sancho Panza
1976 · as Pepper-Picking Girl