Kristen Stewart topless (nipple slip).

Michelle Williams nude (HD!) in a sex scene from Take This Waltz.

Michelle Williams and Sarah Silverman nude (Full Frontal! HD!) in a much buzzed about shower scene from Take This Waltz.

Chole Sevigny nude (Topless! Ass! HD!) wearing a prosthetic penis in Hit and Miss.

Olivia Wilde nude (Topless! HD!) in a classic sex scene from Alpha Dog.

Diora Baird nude in new photos. See more of Diora here.

Alexis Dziena nude (Full Frontal! HD!) in a classic scene from Broken Flowers.

Sofia Vergara topless (in a see through top) from GQ Mexico.

Natalie Portman nude (HD! Ass!) in a classic scene from Hotel Chevalier.

Kate Upton topless in outtakes from Terry Richardson.

Malin Akerman nude (Topless! HD!) in a classic scene from Harold and Kumar Go to White Castle.

Jessica Biel nude in a classic scene from Powder Blue.

Kim Kardashian nude in a newly released photo from Playboy.

Christina Ricci nude in a sex scene with Robert Pattinson from Bel Ami.