He had always thought of himself as an alpha male.  In high school he was a jock, got any girl he wanted.  Other guys followed him.  He was built, hairy and looked like a man. 

After only three hours in college he met a true Alpha male.  His well hung roommate shot a load deep in his virgin ass before he even unpacked.  He now serves his roommate, and his friends, as a cum dump beta male.