Surrender

You take the collar and you obey, you put it on your neck. He names you "Slutty" and he calls someone, a human male enters the room, he also wearing a collar and he kneels on the floor.
"He's your new partner" the dragon says. "He knows what I like. His name is "Bitch" and he will also guide you inside my home until you learn everything."

The man’s eyes meet yours. He doesn’t speak unless his master orders him to do it.

You learn fast.
After some days, you’re working together, your lips on the dragon’s cock caressing his testicles while the man’s hands stroke his cock gently and lick him too. Your tongues trace the sensitive spots of his hard draconic penis. The dragon’s roars shake the mountain, and you share his hot cum.

The man whispers your first lesson as you collapse together in the gold coins "The trick isn’t to endure "Slutty". It’s to love it."

You and your partner move in perfect sync, your hands, your mouths, your bodies always ready to serve the dragon.
And after some months when you are completely hopeless and broken, you do it. You look at the mirror and you say "I'm slutty, I have to please the master"
You take a golden dagger, your eyes are empty, and you are ready to kill yourself or to live serving the dragon until the end of your days.

No one knows what happened inside that lair, but no one sees you again and you haven't returned to your world. For some people you are alive, for other, you are dead, they can't prove it...

Bad ending
Shroddinger human ending