Washington, May 5 : A pregnant Heidi Klum started stripping in front of cameras during a recent appearance on the Ellen Degeneres'' U. S. chat show.

The German beauty agreed to donate the Alice Temperley dress she was wearing on the show as an auction item for DeGeneres'' ongoing charity drive.

However, when the host encouraged her to start stripping, the daring supermodel started peeling off the straps of the dress.

Although DeGeneres held up a napkin to cover the pregnant model initially, she finally realised that the impromptu strip could land her in soup.

And, thus, the host brought Heidi's strip to an end and a screen was brought on to allow the model to disrobe safely as striptease music was played.

Klum later reappeared wearing a white robe, reports Contactmusic.

The Temperley dress is now up for grabs on eBay. com. (ANI)