Nick Jonas and John Stamos’ Instagram prank war has now moved on to the next level. And if Jonas can’t come up with something even better, it looks like Stamos may have just won the months-long war.

The latest move came from Stamos, who now has a large tattoo of Jonas’ face on his inner forearm. Of course, he posted a photo of his new ink on Instagram and captioned it with “#jobrosforlife.”

Reacting to Stamos’ post, Jonas seemed nonplussed and merely wrote the comment, “Okay… okay…” Or perhaps he is trying hard to think of a way to one-up Stamos’ latest prank.

The two have been slugging it out on Instagram since October 2018, to the delight of their followers. Stamos is a Jonas Brothers fan and was noticed wearing a JoBros T-shirt in last year’s American Music Awards. This incident sparked their ongoing Instagram prank war involving a T-shirt, a sweatshirt, a pillow, a blanket and, more recently, a tattoo featuring their faces.

After Stamos’ JoBros T-shirt was spotted, Jonas responded with a photo of his own. He later posted a pic where he wore a sweatshirt with Stamos’ photo printed on the chest. It was captioned with the challenge, “It's your move, John Stamos.”

Stamos’ response was ingenious. Using Nick’s previous post, he had it printed on a pillowcase and photographed himself while seemingly sleeping on the pillow. He then posted it on Instagram with the caption “I had the craziest dream last night…”

Taking some inspiration from his opponent, Jonas then mimicked Stamos’ move but made it larger in scale. He had the picture of Stamos lying in bed with the pillowcase printed on a very large comforter. That probably pushed Stamos into a corner that he has no other resort but to ink himself.

Even their families are joining in on the fun. Jonas’s older brother was quick to react over Stamos’ new tattoo with an obviously surprised comment, “No way!!!” Meanwhile, Stamos’ wife, Caitlin McHugh, jokingly suggested that Jonas should probably name his firstborn John Stamos.

Of course, not everyone believes that Stamos really inked his forearm. But real or not, it’s probably hard for Jonas to top that one out.

John Stamos John Stamos attends the 2018 American Music Awards at Microsoft Theater on October 9, 2018 in Los Angeles, California. Stamos was wearing a Jonas Brothers T-shirt in his photo, which started his Instagram prank war with Nick Jonas. Emma McIntyre/Getty Images For dcp