Major man-crush alert! Arnold Schwarzenegger and Wladimir Klitschko are trading shirtless selfies of one another on Twitter ... seriously, check 'em out:
It's either cute, slightly weird, or a little of both, but it started when Klitschko did his best Arnold impression in front of a classic photo of the bodybuilding great.
"Trying to catch u since I'm 12," the 37-year-old Tweeted at Arnold.
Schwarzenegger, obviously flattered by the picture, Tweeted back, "Great shot! It’s fantastic to see one of my favorite champions nailing my pose."
Then, the 66-year-old added, "Right back at you" and attached a topless pic of himself doing a Klitschko impression in front of a poster of the boxing champ.
At least Arnold's not Tweeting shirtless selfies at Hayden Panettiere.