SCOTT SHAW/The Plain Dealer /Landov Spoiler alert!
Scarlett Johansson was spotted sharing a steamy on-set smooch with Chris Evans in Cleveland, where the twosome were snapped filming a scene for their upcoming flick Captain America: The Winter Soldier.
In the superhot pics, Johansson (aka Black Widow) stares deep into Captain America's eyes, giving him her most penetrating gaze, before pulling the superhero in for a romantic kiss.
Black Widow and Captain America's smooch is particularly significant since the superhero's love interest died in the first Cap flick—set in the 1940's—so this could be the character's first shot at a modern-day romance. Or it's a trap!
Either way, it's safe to assume a kiss with someone named Black Widow probably isn't the best idea.
But we'll just have to wait and see! Captain America: The Winter Soldier is set for release in 2014.