Wet dreams, or "sleep orgasms," are typically experienced by teenagers during dreams about erotic situations. They can also occur in adulthood, and in females.

This is a normal occurrence at the onset of puberty and something that occurs in most male and female adolescents. The hormones that come with puberty also encourage a boy or girl to have sexual thoughts. It's part of the continuation of the species - in order for the human race to survive, sexually mature humans must think about having intercourse to start a new generation. A natural part of this process is the wet dream, where the boy or girl works out their questions and concerns in a dream state

Excerpt from the Amazing Dream Guide:

Did you know? No one can interpret your dreams for you... as well as you can for yourself. The Amazing Dream Guide will tell you everything you need to know to understand this life-changing process. It will guide you to better health, more wealth, and greater happiness. And it will show you how your dreams can answer your every life question.