Dragon (S)layer, Fantasy adventure!

Hey Everyone i just came up with, what i thought, was a fun and cute idea for a Roleplay, here goes:

My character is a humanoid dragon, human face and body, just heavily scaled with horns, wings and a powerful tail... He's a cute femboy, but a stereotypical greedy dragon at heart, sat upon a throne of gold and treasure in his cave. One day along comes your character, a dragon slayer come to help a village or castle with their problem. You character could be a mage with powerful anti dragon spells and enchants; the ability to conjure chains and dragon restrains, or a gallant knight with a plethora of anti dragon weaponry, equipment and maybe even an entourage.

Coming to the cave you realize it's no normal dragon, although he is taller than your average human and showing clear draconic properties. But yeah this is as far as i've gotten, i'm wanting to build the idea up with my partner, my character would try to be in charge, but quickly thwarted by yours, becoming the willing, or unwilling bottom and sub to yours.

The possibilities here are endless, maybe you will challenge the dragon to a competition for his gold, with the promise of riches, possibly a lewder challenge than was expected, a challenge such as this is hard to turn down.... Or maybe you will restrain him whilst he slumbers, steal his gold and have your way with him, or even bring him back to the village in chains, giving him to the lord of the land's that he had ravaged as revenge, the king's new exotic pet... It's up to you, i'm excited to see what any of you come up with!