Margot Robbie Gets Naked For Charity! Watch The Actress Spoof Her Sexy Big Short Bubble Bath Scene For Red Nose Day!

Margot Robbie can give a lecture on pretty much anything and still manage to hold an audience's attention.

The actress kept us entertained while explaining the economics of the 2008 housing crash in The Big Short — mostly because she gave her lecture while soaking naked in a bubble bath.

So when the 25-year-old was asked to talk about Red Nose Day, thestar-studded comedy special that raises money for children in poverty, it's no surprise she did so while spoofing the sexy scene!

Related: Margot Will Lead First All-Female Superhero Movie!

In the clip, the Suicide Squad star sips on a glass of champagne, explaining:

"So, a lot of people have been asking what Red Nose Day is about, and it seems the best place for reasons that are very hard to understand that the best place for me to answer this is in the bathtub."

C'mon girl, you know EXACTLY why you're in a bathtub! LOLz!

Ch-ch-check out the sexy clip (below) to see what Margot's squeaky clean PSA!