Jason Momoa posts his bare bum on Instagram

Jason Momoa has posted a video of his bare tushy on Instagram. So what are you waiting for? Watch it here:

The Aquaman star went back out to sea on a Sunday fishing trip, and it was a successful one, as he reeled in some big ass tuna.

However, if you watch the video he shared on Insta of him bringing in the fish, it may take a few views for you to spot it, as there's a rather off-putting botty on show.

The 43-year-old behemoth was seemingly fishing in little more than a brown loincloth - sort of like a caveman look - and as the sea breeze rippled across the boat, it conveniently blew this rag up in the air, revealing his bare arse.

Instagram/@prideofgypsies

His post has already been liked 800,000 times, and judging from the comments, the ass brought in more likes than the tuna.

One person commented: "Big Mahalo [thanks] for that loin cloth flapping in the wind!"

Another said: "Umm can we get a little extra footage on Jason's fishing outfit?"

A third added: "Jason what in that thong thong thong song is going on here?"

Instagram/@prideofgypsies

One serious takeaway from this fishing photo shoot is that Momoa is a big fat liar - or a big not fat liar, I should say.

Appearing recently on The Late Late Show with James Corden, the actor said he was embracing a 'dad bod' after surgery left him unable to exercise.

Corden asked his guest how he was doing after he had to undergo hernia operation the day before the Oscars back in March.

"How are you feeling?" Corden asked.

"You recently had hernia surgery. How are you feeling – are you all recovered?"

Momoa replied: "It's all good. Still not really doing sit-ups, just trying to keep that dad bod going a little longer. You know what I mean?"

Thankfully, Corden called him out on this blatant bull at the time.

"Can I say, you can't say you've got a dad bod," he insisted.

"You can't, it's not a dad bod. It's not. It isn't."

And so, this fishing trip shoot shows us that Corden was most definitely right.