Good and bad, his roommate is a nudist

Chris entered his new dorm form and froze. Infront of him was his nude roommate, fully naked, causally sitting on his couch. He was a skinny white guy with brown flat hair and a big grin on his face as he saw Chris

"hey! you must be Chris? I'm mark" he asked standing up and walking over with and outstretched arm. Chris just stared at his crotch, unable to comprehend what he was seeing...