New Couple Alert? Dax Shepard & Kristen Bell

Having apparently ended things with brief gal-pal Kate Hudson, sources in Sin City tell OK! that actor Dax Shepard may have already moved on to another blonde beauty — Heroes and Veronica Mars star Kristen Bell.

An OK! spy at the second anniversary party for Tao nightclub and restaurant in Las Vegas reports back that the pair were seen getting very friendly with each other at the celeb-filled event. And when it came time for everyone to say goodnight, who was spotted walking out the door together? None other than this twosome.

However, one partygoer says it's not yet time to start trying to come up with a cute couples name for these two. "They left together," confirms the witness, before adding, "but I didn't see anything really flirty going on."

It's too early now to say whether or not there's love, lust or just giggles going on, but as soon as we hear, you'll know.