It wouldn't surprise anyone if Christina Aguilera likes to have threesomes. After all, this is a chick who eschews panties and once considered assless chaps a fashion statement.

But it's who she allegedly invited for playtime that's got people buzzing: 'High School Musical' star Vanessa Hudgens.

According to bastion of truth Star Magazine, Aguilera was getting dirrty on the dance floor at a recent Samsung Galaxy Note II launch party when she shimmied up to Hudgens, who was a good sport and played along -- but then things got weird.

According to a source, Xtina looked a mess in black stretch pants and a wrinkled T-shirt, and she was obviously drunk, as evidenced by the bottles of vodka that littered her table. And that's when she decided to unfurl her freak flag.

"Out of the blue [Christina] stumbled over to Vanessa and begged her to come back home with her and [boyfriend Matt Rutler]!” said a supposed witness. “Vanessa was taken aback but smiled and politely declined the offer.”

Maybe Aguilera thought Hudgens was hot. Maybe she was enchanted by those raunchy girl-on-girl photos. Or maybe she had a video camera set up and knew the coming together (so to speak) of two former Disney stars would fleece money from the pockets of pervs the world over.

Gotta pay for those Rainbow Brite extensions somehow.

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