The Boys Don't Cry star, who once performed oral sex on then-boyfriend Vincent Gallo in the movie The Brown Bunny, insists she's no longer interested in stripping for provocative movies and has signed a no-nudity clause in an effort to keep her clothes on in the future.
She says, "I'm more self-aware now and wouldn't be able to be as free, so why even do it (bare all)?"
And she has already clashed with directors on the set of her hit TV drama Big Love.
Sevigny explains, "The first season, my character was aggressive in bed, but that changed by the second and third seasons, and there was no sex on season four... This season, aside from some stuff with the teen characters, sex is still on the back burner.
"And although I have done nudity on the show, the other girls won't do topless. I don't want to be the show's Samantha, like on Sex & The City - the only woman who'll do nudity.
"So I refused to do any more and there was a lot of back-and-forth about it."