andrew caldwell & kordell steWART

*Raise your hand if you’re NOT surprised at the swiftness it took for ex-NFL star Kordell Stewart to respond to the “I’m not gay no more” dude, Andrew Caldwell, who claims, in an interview, that he dated Stewart.

As we reported earlier, Caldwell went on a radio show last week and proclaimed the two were in a secret relationship … and Stewart bought him everything from purses to expensive cars.

Stewart reached out to TMZ Sports to let the world know that he doesn’t go that way: “I’m a heterosexual man,” he states.

Kordell goes on to say that Caldwell is simply delusional — “I don’t know the guy. I’ve never heard of him.”

“There’s no room in my personality for that lifestyle. It’s not what I believe in. I’m a heterosexual man.”

Stewart says he believes Caldwell has defamed him — but when asked if he plans to sue, interestingly he says he’s not sure yet.

Watch the interview below: