Kellan Lutz & Samantha Ronson: Halloween Party Pals

Getting into the Halloween spirit, Kellan Lutz and Samantha Ronson were spotted at the Borgata Hotel Casino & Spa on Saturday night (October 30).

The “Twilight” stud donned a boxer costume as he hung out in the deejay booth with a devil-horns-wearing Ronson.

And it sounds like Samantha has been getting to know newly single Christina Aguilera on a much deeper level.

According to Ronson’s producer pal Marlon David, "Jordan [Bratman, Aguilera’s ex-hubby] was never comfortable with Xtina liking girls but he thought it would make the marriage work. Sam said she had a threesome with Xtina in Mexico last month, that's when she realized she was a 'hot piece of a**. Sam said Xtina is 'horny as a college freshman.'"

Enjoy the pictures of Kellan Lutz and Sam Ronson at Borgata (October 30).