The sudden realization that what lies before you is not (as you suspected) an animationic creation, but an actual dragon, combined with the fact that that dragon has your only escape route blocked off causes you hyperventilate a bit. You stammer a few incomprehensible syllables for a bit while your mind tries to come to grips with what you're seeing. You begin to feel light-headed.
"Relax." the dragon suggests. You fall backwards onto your back. Just before you lose consciousness you hear her saying "That's better.", and you realize that you're falling backwards onto her tail, it seems she moved it to catch you. An unknown amount of time later you slowly come to. You try to sit up but you quickly realize you can't move. The dragon has you pinned beneath her tail.
"Feeling better?" the dragoness asks you. She smiles as you stare silently at her.
"Nothing to say? Hmmm...just as well. Nothing you say is going to change anything anyway." she says and then chuckles slightly to herself "...although something I say will change everything. Everything about you, anyway." she says
"What...what do you mean?" you finally manage to stammer.
"Well, I rarely get the chance to exercise my ability to alter someone's form against their will. Most people here are much to smart to go wandering into my lair, after all. So you're presenting me with a rare opportunity to flex my magical muscles." she says.
"You're not going to eat me?" you ask. She laughs a bit.
"The feed me quiet well here. But that's just one of my biological urges." she says "The biological urge to reproduce, for example. The question is, how to go about it?" she asks.