Seegee:
The Christmas episode of Glee had Santana (Naya Rivera) playing a Mrs Claus not dissimilar to those CK describes and it certainly sent my mind down that road. Sit on my lap took on a while different meaning.
Over a decade ago, a Christmas-oriented episode of "Ally McBeal" featured the law firm's rather oversexed (but attractive) secretary, Elaine [Jane Krakowski], wearing a suggestive Santa-style outfit and singing "Run, Run, Rudolph" at the company's Christmas party in a fancy bar/lounge. She carried a black leather flogger, which she casually swung around while she sang--mostly it was just swinging through the air, but IIRC she did land a whack or two on the posteriors of a couple male lawyers who were wearing reindeer costumes and bent forward (as though pulling Santa's sleigh) on either side of her.
IMHO that was the show's best-ever episode, even though there was a later one which focused quite a bit on (M/F) erotic spanking, even featuring a very quick hairbrush smacking...

--C.K.