Henry Cavill's romantic life just got a super big bang ... or something.
What we're saying is the Man of Steel hunk is dating Kaley Cuoco.
"They are totally hot for each other," a pal says of the British actor and The Big Bang Theory beauty, 27, who are keeping the relationship on the DL for now.
Kaley did drop a major hint to her 1.4 million Twitter followers June 14.
Tweeting a photo of herself gazing at a Man of Steel poster, she urged her fans to see the mega-successful Superman reboot, calling it "fantastic in every way."
For his part, a source of Cavill: "He's excited to be dating her!"
One would hope, as he is now the enemy of 20 million nerds.