U.S. comedienne Chelsea Handler has dismissed reports she has undergone breast enhancement surgery.

The Tv funnywoman has been displaying her chest in a series of topless shots on Twitter.com in recent weeks to protest against Instagram.com's no-nudity policy, and this week (beg02Mar15), she was hit with reports suggesting she underwent a breast lift six months ago.

Handler has now gone online to clarify the reports and she insists her assets are all natural, writing in a post on Twitter, "Um... There have been a lot of men who've touched my boobies, but not one of them has ever been a doctor."

She goes on to add a picture of herself lying topless on the floor, adding, "Here idiots. A totally sober portrayal of proof."