Mark Wahlberg flashes abs and ‘plumber’s crack’ at the gym

Nice Wahlburger buns.

Mark Wahlberg flashed his butt cheeks while hitting the gym in a new video posted to his Instagram on Friday.

The 49-year-old actor first pulled down his shorts to show off his camouflage boxer briefs while also showcasing his chiseled abs before turning around to expose his upper backside to the camera.

As he poked out his rear-end, Marky Mark also showed off marks from a cupping therapy session.

“Check out the new @municipal underwear out now!!,” he captioned the video, joking, “Polka dot cupping not included 😂😂.”

Several fans lusted over the booty-ful sight.

“🙋🏼‍♀️ I looked, again…and again…and again….. And ….you get the point. 🤭😄🤣🤣🤣🤣🤣,” one person commented.

“Don’t be shy, show us more ✨,” another wrote.

“😍 Can I see the cupping again? Lol,” joked one more.

“Plumbers crack swag!! Lol,” added a fan.

Gym rat Wahlberg is no stranger to stripping down to show off his gains.

He frequently shares his workout routine online while shirtless and even showed off his tricep transformation after six months of heavy training and strict dieting.