you can have a relationship that doesn't have sex involved. >> but mason believes it is the lack of sex that leads to the unrest among inmates. >> that frustrates these dudes. there is not a man that i know that wakes up and don't have an erection in the morning time. that's what happens. we are dealing with reality. when a man wakes up. first thing that comes to the man's mind, damn, i miss my wife. >> but behind bars, sex can be a combustible concoction of desperation, homophobia and predatory behavior. especially at prisons as notorious as california's pelican bay. >> this is the last place they need to be sending a flam buoyant homosexual, is pelican bay. >> adolph green was on the pelican bay yard when our producer noticed him and asked for an impromptu interview. >> i'm a flamboyant homosexual. and we call each other girls. you understand. some of the dudes call you girl,