Ryan Reynolds jokes Paul Rudd is 'aging backwards because of his contract with Satan'

The audience of Wednesday's "The Tonight Show Starring Jimmy Fallon" were expecting Will Ferrell, but instead, they got Ryan Reynolds.

And Reynolds did not disappoint.

The 45-year-old actor and filmmaker claimed that Ferrell asked him to fill in because he was "running a little late" before revealing, as was the plan of the bit all along, that Ferrell wasn't coming at all.

Reynolds refused to discuss Netflix's "Red Notice," in which he stars alongside Dwayne Johnson and Gal Gadot — insisting on his responsibility to "deliver for Will Ferrell because he's a golden god" and promote the new Apple TV Plus limited series "The Shrink Next Door."

Ferrell stars opposite Paul Rudd in "The Shrink Next Door" — the first three episodes arrive Friday — which led to Reynolds commenting on Rudd's new title as People's "Sexiest Man Alive."

"I'm happy for Paul because he's possibility the nicest human being in all of show business," he said. "He's aging backwards because of his contract with Satan, or he only drinks breast milk from a blue whale. The point is he does something weird, and I want in."

Watch the full segment below.