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The ladies love Derek Hough.

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The dancer, musician and sometime actor has been linked to a slew of beautiful women in recent months, from his "Dancing With the Stars" partner and video blogger Bethany Mota last fall, to newly single Kate Hudson in early December, to a mystery brunette believed to be model Dana Taylor, whom he was spotted hugging in St. Barths on New Year's Day.

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Who's he really dating? It's anyone's guess, but a source tells Wonderwall that "DWTS" shippers have a new reason to get excited: Two weeks before Derek, 29, was photographed embracing a bikini-clad brunette (see the photos here) on the beaches of St. Barths, "he was on a romantic Big Sur, Calif., vacation with Bethany."

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Reports last fall questioned whether Bethany, 19, and Derek were secretly dating during their partnership on "DWTS" during the most recent season, but they never confirmed a romance. Then, just days after their fourth-place finish, Us Weekly reported that Derek was "totally kissing" Kate, 35 -- who'd recently split from Muse frontman Matthew Bellamy -- at The Nice Guy bar In West Hollywood, Calif., during a night out together in early December.

We can't wait to find out which lucky lady he'll be spotted with next.