The truth

You decide to tell Whisper about your plan. "I am the father, so to speak, we are travelling to the castle of our farther to make it official and get married. In the battle, I lost my tail and we are going to claim it comes from the dragon, my mother to prove that I am worthy to marry Sophia. I had planned to go on a quest to free the dragons and re-right the laws and traditions that dictate that princesses must be locked in a castle. However, that was built on the assumption that Sofia was not yet pregnant and that your pregnancy would last almost 9 months not too. With the news, you bring me I will have to change my plans. I will stay at least until the birth of all my children"

"You're not going?" interupted Sofia.

"I will complete my quest, Sister but first I the three of us will raise my seedlings, this will give you both practice at raising children." You turn to whisper "You may grow your forest to encircle the castle as heir to the throne I have the right to give you the land, that should be sufficient payment to travel through the wood. I ask that you leave a route to the nearby town as when It becomes time for Sofia and I to rule people will need access and even before that we will need supplies and food. Once Sofia's child is born I will leave them in the cair of the two of you and go on my quest. Once complete I will return to rule and raise my offspring. I may bare children of my own."You explain.