Zacks heading towards a new career. Hes been studying for a year now and hired a professor to help him prepare for his final exam. Unfortunately, our muscled boys head is somewhere else. His helper noticed and soon found out that his student has been thinking about sex. So he explained to him that his balls are like bags connected to his brain. Its impossible to fill them when theyre full. So he asked Zack to take ten and empty his balls. And of course, our naughty professor stood there and watched him!