Because dragons have a thing for humans. He isn't fucking other dragons, is he? No, he's fucking humans, or humanoids. Dragons taking human form is not uncommon in fantasy, so asking 'why would you have a dragon do that?' is a bit of a silly question. In Warcraft, dragons can become human. In D&D and Pathfinder, dragons can become human. In Shadowrun, dragons can become human. If the dev doesn't want to do it that's fine, and I'm not calling for it to be added, but people acting like it's a stupid thing for people to even ask for it annoys me.