Lip Service

LIP SERVICE: What's that giant sucking sound coming from Los Angeles' KROQ radio? It's none other than maritally challenged supermodel Cindy Crawford loudly slobbering on a six-inch candy cane for a full 55 seconds on the station's Christmas parody album, No Toys for O.J., benefiting ill children. ''She does some soft moaning — and there's a spine-tingling crunch at the end,'' says Mark Davis of KROQ. (In addition to Crawford's tongue work, the locally sold album features the Smashing Pumpkins' rendition of ''Rudolph the Red-Nosed Reindeer'' and Geraldo Rivera singing about transvestites in a parody of ''The Christmas Song.'') But the giddy fun doesn't end there: KROQ jocks Kevin Ryder and Gene ''Bean'' Baxter plan an on-air auction of chunks of cane once crunched by Cindy's flawless teeth. Hygiene, says Davis, will not be a problem. ''The cane was in a protective wrapper. We encourage safe sucks.''