You're a poor guy that has to work during summer holidays. You clean up swimming pools for rich people. Today you're at Sam Wilston's Villa, who is gone for vacation for one week...
Jerk off with other guys and try to keep yourself near the edge for timed opportunities to come. Depending on your arousal and stamina, could last from minutes to more than an hour.
A variety of men order you to jerk beyond your control. Can you make it to the end for your chance to cum? Depending on your speed, it could be longer than an hour.