Los Angeles: Actress Jennifer Aniston says she cannot pull off a red lipstick, whereas she believes that actresses like Gwen Stefani can flaunt it with panache. "Super bleached blondes - like Gwen Stefani - can get away with it, but it’s tough to pull off with my colour," Aniston, 44, said. Aniston, who is engaged to Justin Theroux, was recently caught amid rumours that she is pregnant. The rumours followed her appearance in a fitting dress to her movie premiere. It showed of her belly, but she laughed off the rumours of the baby bump. While on the "The Kyle and Jackie O Show", a popular Australian breakfast radio show, she said the belly may have been showing because she has gained a couple of pounds. "There’s nothing to announce. That’s just a couple of lbs (pounds)," she said.