The horniest guy in the world is stuck on an island with just a monkey. After a while, he gets so horny he decides to have sex with the monkey. He catches the monkey, tries to have sex with it, but it slips out of his grip and runs away.
He tries again the next day, but the same thing happens. Then, he sees the hottest girl in the world drowning in the ocean, so he goes and saves her.
She says to him, “I'll do anything to repay you. ANYTHING.” The man says, “Can you help me catch that damn monkey?”