Mary-Louise Parker has appeared topless on Weeds Season 4 (Episode 13) "If You Work for a Living, Why Do You Kill Yourself Working?", whereas they showed her breasts for an extended shot in the bathtub.
Another shot was on Weeds Season 6, Episode 8 "Gentle Puppies" where Mary-Louise Parker and Mark-Paul Gosselaar engage in a highly x-rated sexual encounter scene against a bar, complete with biting, slapping and several shots of naked erogenous zones.
During the Season 4 bathtub scene, Mary-Louise Parker said she had regrets and did not feel she needed to be naked; she even fought with the director about it as she knew it would end up all over the internet.
Just recently, according to New York Magazine Mary-Louise Parker confessed she wasn’t in danger of quitting acting, she said that the whole "I-might-quit-acting interview" a few weeks ago was born out of a conversation where she was asked if she had long-term goals. Find out more here.
Mary Louise Parker Weeds bathtub scene by alfasamecdotcom