Hot mamãe! Megan Fox in sexy Brazilian beer commercial [Video]

Yahoo! TV

It's getting hot in here, so Megan Fox is taking off all her clothes!

Well, sort of. The sultry actress stars in a new Brazilian commercial for Brahma beer in advance of the famously wild Rio Carnival, which begins February 9.

[Related: Bud Light looking to get 'Lucky' with Super Bowl 2013 ad]

In the Portuguese-language ad, Fox flaunts her svelte postbaby body while winking and dancing along with a crowd of revelers. Then she takes off her top … only to transform into someone decidedly less sexy:

Luckily, Fox transforms back to her gorgeous self. And she doesn't show an ounce of baby weight after having given birth just a few months ago. She and husband Brian Austin Green welcomed son Noah on September 27.

[Related: Go Daddy's second Super Bowl 2013 ad keeps its clothes on]

Word is that Fox and her hot bod will make an appearance the first weekend of Carnival as part of her duties as a Brahma spokesperson!

[Related: See more photos of Megan Fox]

This isn't Fox's first commercial -- check her out as a "dolphin whisperer" in an ad for Acer laptops:

What do you think of Fox's new Brahma beer commercial -- hot or not?