Naked and Unsupervised

I don't get it. I ask a couple simple questions: "What is sex?" and "What is jacking off?" And I get riddle involving a jimmy-john, a yahoo, and screaming for Jesus. I guess it's my fault for asking Uncle Dax in the first place. Now, I have to find the answers on my own, and the people I meet along the way are either not very helpful, or way too helpful. Book four in Russell James' "Naked" series, this shares the story of a sheltered and naive twelve-year-old who struggles to understand this new and unknown world of puberty."