Well, Jay Leno didn’t waste any time taking advantage of the David Letterman controversy. His first joke last night? “If you came here tonight for sex with a talk-show host, you’re in the wrong studio.”

“I have never had sexual relations with any of my staff,” Leno said — and then a drummer in his band stalked offstage, feigning anger, as though he was a wronged lover. Bandleader Kevin Eubanks played along: “Jay, you’re messin’ around on me?”

Switching to the Letterman’s extortionist, Leno said, “This guy was a producer for 48 Hours. It coulda been worse; at least he wasn’t a producer for ‘To Catch a Predator.'”

Did Jay Leno just call David Letterman a predator? Or did he mean the producer? If I have to ask, doesn’t that mean it’s not the best-constructed joke?

Later in the show, during a panel discussion, guest Arianna Huffington was determined to squeeze in a jokey comment: “If you’re going to be have sex with people who work for you, you have to be David Letterman.”

Over on The Tonight Show, Conan O’Brien refrained from any Dave remarks, but that genial loose-cannon Drew Carey, Conan’s first guest, came out and said merrily, “Man, I would hate to be on opposite Letterman tonight with all that sex stuff.” “No comment,” said Conan quietly.

Mid-way through his Late Night monologue, Jimmy Fallon said, “There’s a new book out called Why Women Have Sex that has a list of the 237 reasons why women have sex, and Letterman knows the top ten.” Get it, get it?

And on Real Time with Bill Maher, Maher said, “I’ve never had sex with members of my staff — the guests, yes, of course, but not the staff.” He also said, “Hey, next to Roman Polanski and Mackenzie Phillips’ dad, I think Dave looks pretty good.”

I didn’t hear any Letterman jokes from Jimmy Kimmel.

Finally, as I wrote earlier, Craig Ferguson had taped his Friday show on Thursday before the Letterman news broke.

What do you think of the Letterman jokes?