Miley Cyrus can't stop ... hooking up with Kellan Lutz!

Us Weekly reports that Cyrus canoodled with the erstwhile 'Twilight' hunk at Britney Spears' opening night performance of her Piece of Me residency in Las Vegas on Friday (Dec. 27). Spies reported that Cyrus and Lutz had their arms around one another, and that she planted a big ole' wet one on his cheek in public.

Sources say Lutz is "good eye candy" for Cyrus and that they "really enjoy one another's company."

Lutz wasn't the only person Cyrus had a blast with at the show. The 'Adore You' singer was also spotted making out with female dancers and shaking what Tish gave her with Katy Perry and some pals.

After the show, a spy reports that the two pop tarts hung out with some guy friends, including Adam Lambert and Emile Hirsch.

"Miley and Katy Perry settled into a booth with 10 or so others. Tons of fans crowded around the whole time. Katy was sitting next to Miley in the booth, with her back turned toward her, talking to some male friends."

And her new boo!

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