Stepping out for a fun-filled evening, Kristin Cavallari was spotted at the US Weekly Hot Hollywood 2009 soiree last night (November 18).

The “Laguna Beach” babe looked super sexy as she arrived at Voyeur nightclub, sporting a black corset-style dress with gold-lined accents and black open-toed heels.

And it sounds like Kristin has landed on Jon Gosselin’s radar, as the “Jon and Kate Plus 8” father told a pal he’s looking to hook up with her.

The source revealed, “Jon said he really wants to hook up with Lindsay Lohan, Kristin Cavallari, and Whitney Port.  He’s like a kid in a candy store and going absolutely wild.  He definitely isn’t on the prowl for another wife.”