EDGE Rewind: Jason Momoa Shows Off Muscular Butt During Fishing Trip

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They don't call him Aquaman for nothing! On a recent fishing trip, Jason Momoa showed off his tail in a cheeky photo posted to his Instagram Story that left little to the imagination.

As reported by People Magazine, the "Aquaman" star was sporting thong-like underwear while reeling in a few big ones among friends. No context was given to why he was wearing the briefs, other than him being Jason Momoa, but he looked damn good posing beside friends with their respective catches.

Never one to miss out on turning a thirst trap into a call for action, Momoa also shared an image raising awareness against single-use plastics.

"Help stop single use plastic watter bottles and please recycle," he wrote alongside the pic. "All my aloha."

Momoa was sporting a new hairdo after previously posting on Instagram that he cut his hair on video to draw attention against using single-use plastics.

"I'm here in Hawaii right now, and just seeing things in our ocean, it's just so sad. Please, anything you can do to eliminate single-use plastics in your lives. Help me, plastic bottles are ridiculous... we're going to keep going – oh, man. Love you guys. Aloha," he said in the video.

Now he is using another one of his best assets to draw attention to the cause. Well done Aquaman.

See his public service announcement about singe-use plastics below.