A man who loves anal so much that he has never tried vaginal sex books a cute escort who offers anal for a 120-minute session. Although vaginal penetration is forbidden on this course, she lets him finger and lick her pussy. The stimulation gets her so worked up that she asks whether he wants to try putting it in. His dream finally comes true—but she can barely feel him because he has gone soft. Has anal become the only thing that can keep him hard? The escort takes it as a challenge and tries to make him cum from vaginal sex, gradually letting him slip into what was supposed to be off-limits. Their contest continues in Part 2.