5th Story Goblin Influence

This is the last story that I will post for now.
The story is simple, a young boy, a real fantasy gamer, has no life, no girlfriend, the only thing makes him happy is killing some orcs in one of his game.
    But one day, after being sent to the shop at night by his mom, he spots something like a homeless cat trapped in the sewers. Coming closer he sees that it is actually not cat, but a strange being. He decides to help it even so, discovering that the strange being, actually looks similar with one of the goblins in his games. He decides to help the poor guy out and take him secretly to his home.
But the goblin in not a normal little monster, he has some strange magical powers. Being grateful for the kid’s kindness he starts to reward him with some unusual ways. The kid is not sure at first what to think about this, but he starts to become more and more influenced by the little goblin that he previously helped.

Genre: M/F, F/F, incest, forced, blackmail, monster,influence Contemporary scene.
No battle system.