Star Exclusive: Justin Timberlake Caught Kissing Kate Hudson! Star Readers To Justin: You Cheated!

starmagazine has said this gossip.
When Jessica Biel is away, Justin Timberlake will play!

And that's exactly what he did on Jan. 11 when he was caught kissing Kate Hudson at Hollywood club Villa.

Meanwhile, Jessica — whom Justin has been dating for much of the past year — was on the other side of the world in London filming a new movie.

"They seemed to be so into each other. Kate was batting her eyelashes, laughing hard and touching her mouth a lot — all the usual come-ons," an eyewitness tells Star.

But as the party began to wind down, Justin and Kate heated up! Although reps for both deny the hookup, the eyewitness says Justin went in to kiss Kate — and it was some liplock!

So did Justin cheat on Jessica? Considering 95% of Star readers polled said they feel a lip-locking kiss is cheating, we'd say yes!