Yes

You creep over to your sister's room and use the secret knock the two of you had. Sofia opens the door she has brown hair and green eyes like you. Her breasts are also about the same size as you, this was useful for handly down clothes, she was a bit shorter than you even though she was older. She was about 22 now and was dressed in an orange dressing gown and matching fluffy slippers.

"Aurora!" She exclaimed with a tone of delight. She hugged you then let you inside and closed the door. "Tell me of your adventures, I was watching you train and prepare for battle."

You tell your story of your adventures and battles. Gaining a reputation on your way to the castle. How you met your father and cousin and heard his plan and that that was what you and your mother were preparing for. Then you tell her that you met the dryad and fucked her for passage through the forest.

When you finished Sofia asked "So, what's it like, sex I mean?"

"Do you want me to show you" You reply with a wink.

"You can't I have to wait for a knight, although I kind of hope they let your mum live." She replied.

"I'm a knight and I defeated mum earlier in our training. Besides if I compleat my Quest no princess will have to wait for a knight and no dragon will have to die to prove them worthy." You tease.

"But were related." She replied

"We are only half sisters besides your cousin is coming here right now to claim you and he had the backing of our farther. I know your body better than he will and you know mine" You reply with another wink.