Muscled underwear models need a little holiday fun, right? Right. So Tampa guy Cory Zwierzynski partied into the New Year with friends in Atlanta. But thankfully, he never takes a break from shooting sexy selfies.

A reader spotted Zwierzynski in our pics from the New Year's party at Jungle and pegged him as an Andrew Christian model. That's him, second from left, in the photo above enjoying Party Like A Rockstar 8.0. A hottie? Definitely. But we didn't know he's the same guy strutting his Christmas goodies in Christian's recent "The Night Before" video below.

So a little, ahem, research later and we put all the pieces together thanks to his Facebook fan page and a never-ending stream of sexy selfies he posts to Instagram. With fellow AC model (and porn star) Topher DiMaggio. With singer and "RuPaul's" judge Michelle Visage. With other muscled hotties. Or by himself.

Enjoy this selection of some of Zwierzynski's photos. Then go follow him.