Anderson Cooper won’t forget pal Andy Cohen’s Instagram prank anytime soon.

One day after the Cohen posted shirtless selfies of Cooper on Instagram, the CNN anchor, 53, made it clear he will get his revenge on the “Watch What Happens Live” host, 52.

“I don’t know how. I don’t know when. But I will get @bravoandy back fo all this,” Cooper posted Wednesday to his Instagram story, posting a colorful collage of himself shared by Sean Penn.

Cohen then re-shared Cooper’s post, adding an animation of himself laughing.

On Tuesday, Cohen added two topless shots of Cooper to his Instagram page just to “piss him off.”

“If it were a normal year, I’d be on vacation with my pal…threatening to post shirtless pics of him,” the Bravo honcho said. “Well, it’s 2020 and I’m sitting on my deck so I figured I’d just post without asking and piss him off! #SilverFox.”

Both Naomi Campbell and “Real Housewives of Beverly Hills” star Lisa Rinna recognized Cohen’s contributions in the comments.

“THANK YOU BIG DADDY🔥,” Rinna replied.

“ANDERSON , go Gemini ♥️🔥♥️🔥,” Campbell responded.