The thrill of the forbidden fuels his desire. His big, fat cock, a whopping 21 centimeters, aches in his pants. He unzips, letting it spring free, the cool air a stark contrast to his scorching flesh. He jerks off, his hand a blur, the friction sending jolts of pleasure up his spine. His moans grow louder, more urgent, until he can't hold back any longer. His body convulses, his cock pulsing as he coats the bathroom wall with his hot, sticky cum.