Zack's heading towards a new career. He's been studying for a year now and hired a professor to help him prepare for his final exam. Unfortunately, our muscled boy's 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. It's impossible to fill them when they're full. So he asked Zack to take ten and empty his balls at MASKURBATE. And of course, our naughty professor stood there and watched him!
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