Nothing comes between a designer and his Calvins…except a barely-legal Twinky!

Iconic denim designer Calvin Klein is known for his sexy, envelope-pushing ads, but it appears the 67-year-old also has a taste for sexy young men. Klein has been spotted hobnobbing at some of Manhattan’s hottest social events in the company of 20-year-old hottie Nick Gruber.

Grubber, a native of Central Florida, is an aspiring model, recent high school graduate, and low-budget gay porn star!

Sucia!

Celebrity snitches with their ears to the ground tell Gawker.com that before hooking up with CK, Nick had quite an active social calendar performing taped sex acts under the pseudonym “Aaron Skyline.” His last appearance on the Twinky porn circuit came in Jan. 2010, when the cute-as-a-button blonde appeared in solo scene on the gay porn site SeanCody.com under the name “Zeke.”

DudeTubeOnline.com has the scoop on Nick’s illustrious career in the world of adult smut, which includes participation in a five-guy orgy?!

No one’s quite sure how Nick meet the legendary Mr. Klein, but the pair have reportedly been seeing each other since last spring. How about a few snaps from Nick’s modeling portfolio?