Scarlett Johansson is the principal eye candy in the upcoming “Avengers” summer blockbuster, and with it came certain duties; like wearing a skin-tight crime-fighting outfit.

Johannson is currently on the road in Europe attending premieres with the Avengers cast. So far, they’ve hit London, Berlin and other cities.

The film will feature Captain America (Chris Evans), Thor (Chris Hemsworth), Iron Man (Robert Downey Jr.), The Hulk (Mark Ruffalo), Hawkeye (Jeremy Renner), and Nick Fury (Samuel L. Jackson).

Check out Premiere photos; click to enlarge.

Johansson, 27, plays the butt-kicking Black Widow, but she had her own butt to worry about, namely how she looked in her skin-tight, costume.

“First of all, every woman has body worries. I’m not exempt from that,” she told Britain’s ITV1’s “Daybreak” morning show.

“But beyond part of the by-product of spending that much time in the gym is that you can fit into a cat suit.”

Johansson said she performed her own stunts in the movie under the guidance of stunt-double Heidi Moneymaker. Performing physical stunts took its toll on her latex costume.

“The first times around were hysterical with this costume,” she told USAToday. “You’d go to do a high kick and the pants would just split open. I was like, ‘Okay, we’re going to need to reinforce this.’ ”

At her London premiere, she ditched her previous androgynous trousers and tailored jacket, for a sexy strapless dress. The Joss Whedon, Marvel Comics film opens May 24.

Check out her photos along with the rest of the cast.