Actors/brothers Liam Hemsworth, Chris Hemsworth and Luke Hemsworth arrive at the Premiere Of Warner Bros. 'Vacation' at Regency Village Theatre on July 27, 2015 in Westwood, California.
Credit: Barry King/Getty Images

If there's one thing the hunky Hemsworth brothers have plenty of (after good looks, of course) it's sense of humor. Proving that despite fame and fortune, they're still just brothers, Chris Hemsworth, 32, and Liam Hemsworth, 25, have started up a hilarious Instagram feud. Now who doesn't love some good-hearted brother banter?

Earlier this week older bro Chris posted a photo on Instagram of Liam's December cover of Men's Health, which he scribbled on in black ink, giving Liam giant ears, a unibrow and a wild spiky haircut.

Liam fired back a few days later by posting a photo of Chris's December cover of Vanity Fair, which he doctored with red marker. He bestowed the Thor star with a giant Afro, a handlebar mustache, and a devious-looking goatee.

"Really great cover bro! @chrishemsworth," he wrote alongside the pic of his artwork.

The battle actually began in October when Liam posted an Instagram photo of his dog Tani chewing on a Thor action figure. "Tani's favorite chew toy #Thorsday" he captioned the photo of the mangled doll in the dog's mouth:

So it looks the ball is back in Chris's court. We can't wait to see how he teases his little bro next!