Johnson countered that he doesn't smell or taste like strawberry shortcake — "strawberry shortcake with liver I think."
The 36-year-old wrestler-turned-actor said he was gung-ho about planting a kiss on Carell.
"It was just one of those things where I thought well, you know, 'What could be the most entertaining and funniest moment that we could think of that would still make sense and still kind of root in reality?'"
"We came up with a great kiss," said Johnson, who plays Agent 23. "I thought if Jake Gyllenhaal can do it, Will Smith can do it, then I can do it, too. I'm going to own it. I was like, 'Give me those lips right now. Right now.'"
Said Carell: "He is such a good guy. We just laughed that whole day. That was a total no-brainer in terms of that scene. There was never one moment of hesitation or awkwardness. He's game for anything, let me put it that way."
"Get Smart," also starring Anne Hathaway as Agent 99, is slated for release June 20.