Vicious twentysomething enjoying his co-worker's cock.

Video offered by blacks on boys i have only been working in a warehouse for a week and since i was twenty i had no experience i never thought they would hire me. one day taking a couple of boxes to the warehouse, one breaks a little and i see that it is full of movies inside. i show them to my partner and he gets horny lost to see the cover of one of them. when i turn around he is with his cock out and jerking off. how was it possible that he had a huge cock hidden in his pants without showing anything?