The trio of World Series flashers were being eyed by stadium officials shortly before pulling off the brazen booby stunt, according to new video.

Instagram model Julia Rose documented her and her “breast” friends’ X-rated exploits in an 11-minute video posted Monday as part of her digital magazine, ShagMag.

“So representatives just f–ing pulled us out of our f–ing seats, said they know who we are, they don’t know what’s going on,” Rose says in a portion of the video taken Sunday night at Nationals Park in Washington, DC. “But we have to wear our jackets closed.”

The trio spent 48 hours planning the shenanigans ahead of the game — with the video kicking off as Rose, the co-founder of the breast-obsessed publication, scores three coveted tickets behind home plate.

“We’re going to flash our tits at the World Series!” she screams with joy. “I’m so f–king nervous.”

The video shows Rose and her two big-breasted pals Lauren Summer and Kayla Lauren donning yellow “ShagMag” T-shirts at the game — and then promptly getting booted from the stadium for hoisting them up and exposing their bare chests.

“We’re getting escorted out of the World Series right now,” boasts Lauren shortly before the video turns to the three getting handed a letter banning them from Nationals Park for life.

While the video shows the pals relishing their newfound fame, Rose — who’s gone topless in public before — expresses disappointment that the camera didn’t capture their full-frontal.

“We didn’t get our shirts in, we didn’t get our faces in and some f–king whack-ass dude blocked Kayla and Kayla’s beautiful tits,” Rose grouses on camera.

“We have no footage besides half of our bodies on Fox. So, our mission here in Washington, DC, didn’t go as planned, but it’s not going to stop us.”

Rose told The Post on Monday that the stunt was designed to boost subscriptions to ShagMag so the magazine could raise money for breast cancer awareness.

“It wasn’t just for fun, it was for a really good cause,” Summer says in the video.