Demon Queens Pet (FutaxFemboy)

While crossing the road a high school boy was hit by a truck. He died. But then he was reincarnated in another world of sword and magic where races like elves, dwarfs, beastmans and of course demons exists. The boy was reincarnated as the son of a Baron. He was named Luthic Wains. From young age he had the body structure much like girl his member still being there. There were many occasions where he was misidentified as a girl. At the coming of age ceremony he was blessed to be a hero by the goddess who will defeat the Demon Queen who brought terror upon that world. At the age of 18, Luthic, after facing many difficulties, finally managed to reach the Demon Queens castle where he challenged the Demon Queen Rosaria. In their battle the hero Luthic was defeated by the Demon Queen Rosaria. Instead of killing Luthic, the queen decided to make him her eternal slave in exchange for not terrorizing the world anymore. Now follow the story of how Luthic submits to the Demon Queen Rosaria and becomes obedient slave for eternity.