The actress made an unforgettable entrance on Wednesday's episode of "The Ellen DeGeneres Show" for the talk show hosts's 12 Days Of Giveaways -- where she completely lost her skirt, revealing her underwear.
After the host introduced the "Mom" star, Anna made her entrance wearing a black top and a blue and white patterned skirt. The 39-year-old blondie then suddenly goes bottomless while dancing towards Ellen in a pair of pink granny panties.
"Oh it's cold in here!" Faris exclaimed to a confused Ellen, before realizing her wardrobe malfunction.
Later in the show, the fully-clothed star gave members of the audience some sex advice, including intel for one woman who asked for phone sex tips to spice up her long distance marriage.
"Long distance is hard, and I think ... let me qualify myself by reminding you I'm completely unqualified," she told the audience member, "I think it's practice and I gotta tell you, no offense to your husband, a lot of men really don't care."
Another woman asked for the best way to get busy while her children are home -- check out her answer below!