We aren't sure if it's her skin or the flash from the cameras -- but Scarlett Johansson is glowing!

The pregnant star turned up the heat at the Paris premiere of her new film Captain America: Winter Soldier on Monday night. The mom-to-be dressed her growing baby bump in a red suit with black lapels. The 29-year-old Tony winner accessorized the sophisticated look and silver heels and a clutch with an open mouth on it. Even when she's pregnant, ScarJo knows how to keep it sexy!

The Avengers star, who debuted her baby bump at the Hollywood premiere of Captain America: The Winter Soldier last Thursday, is expecting her first child with French journalist beau Romain Dauriac. The pair got engaged back in September 2013 but according to Johansson's rep, "They haven't chosen a date for the wedding."

In other slightly more scandalous news, ScarJo recently chatted with MTV about her full frontal nude scenes in the upcoming film, Under The Skin. In the movie Scarlett plays an alien who goes around picking up men to eat, hence the sexually charged scenes.

"The nudity is written in to the script and I hope the audience agrees that it's, you know, it's not really indulging," she said. "It's almost like biological in a weird way, I think, and there is a lot of intention behind it." Still, she admitted to being a little bit nervous about it all. "You know, I'm not a nudist by nature so of course you feel self-conscious about it beforehand. But it actually allowed me to realize and explore what kind of judgments I had about myself because I had to abandon those and really see myself as blank sort of slate and it was an interesting exercise for sure." We're not complaining...