3x16 - King of the Hill

Hank gets Luanne a job as a golf course drink girl at the La Grunta resort. In gratitude, Luanne gets Hank a chance to swim with a dolphin. Hank pets the dolphin, and the dolphin becomes aroused and tries to become sexually intimate with him. In return for his silence, the hotel pays him off, and Hank tells Luanne never to talk about what happened. Luanne gets sexually harassed by one of the golfers, she decides to follow Hank's example and not talk about it.