"No I don't want to" you say.
IT WAS A RHETORICAL QUESTION.
With that the dragon grabbed you with one paw and looked you right into the eyes. His head was so big that you could easily stand upright in his maw.
"You have to know I am tired of living in this cave." the dragon said with a much more silent voice. "I want you to keep one half of my hoard while I will leave this cave with the other half. I want to go to the nearest casino and have some fun. So I will gift you with my power."
The dragon cast a strange spell at you. Then he let go of you and started to pack up his things and one half of the treasure. You were not able to move. Then he said:"Good bye." and flew away.
Then your body began to glow. You felt an immense pain and you had close your eyes. When the pain stopped and you opened your eyes you notice the cave looks much smaller. No you grew. You inspected your body. Your body is covered in blood red scales. You have bat like wings and a long tail with a sharp blade at the tip of it. Sharp spikes are running down your longer neck down your back to the tip of your tail. You notice that your body is extremely muscular but still very flexible. Your huge breasts are hanging down from even larger pecs. You feel the immense power of this body. Then you tried to breathe fire. Immediately a huge stream of fire came out of your beastly jaws. Your an huge female dragon now.