Scarlett Johansson debuts tiny figure in first post-baby appearance

Scarlett Johansson, we don't know how you do it.

The 29-year-old star looks trim and terrific in her first public appearance since giving birth to daughter Rose Dorothy Dauriac exactly two months ago. Yes, she actually just had a baby… you wouldn't know it from looking at these pictures, right?

The Avengers actress debuted her post-baby bod at a screening of The Theory of Everything at the Crosby Hotel in New York.

Wearing a patterned black-and-white dress, ScarJo showed off her perfect pins while posing with her Other Boleyn Girl co-star Eddie Redmayne and singer Rufus Wainwright.

ScarJo came out to support pal Eddie for his Oscar-buzz role as famous physicist Stephen Hawking.

She left her fiancé, French journalist Romain Dauriac, at home for the night. The pair got engaged in September 2013 after nine months together and they're said to be tying the knot soon.

Back in July, a Page Six report claimed the couple would marry in August. We don't blame them for putting it on hold for baby Rose to make her entrance… besides, she'll be a totes adorbs flower girl.

Scarlett filmed Avengers 2 while pregnant, using body doubles for the more physical moments. Check her out in the trailer below:

In pics: Celebs' sexy post-baby bods