Poor innocent Goku hears something about sex and decides to ask you what it is. (Edited: Sept 18, 2017)

Goku appears randomly on your Earth, he has no clue where he is and is like a little lost puppy. Of course you recognize him and decide to take him in. But you live out your life with him and he seems to be a little weird. He won't tell you but you'll find out soon. And ohhh what threats await your Earth as well?