Twins! Prince Donmal and Princess Anna

You wait patiently for several hours and are shocked to hear not one baby crying but two by the end of it. One of the nurses comes out and gives you a warm smile, "Congratulations Your Majesty! You're the father of twins. A girl and a boy. The Queen is also doing fine. She's a tough girl that one." you quickly push past the nurse to go see Marissa. She's laying on a cot with two babies in her arms and a legitimately exhausted expression on her face.

"Well Your Majesty, how did i do?" she looks up at you. You smile back and kiss her forehead, "You did great." She looks down at the children in her arms, "they're your heirs. You name them."

You think for a moment before responding. "Prince Donmal and Princess Anna" You notice some slight discoloration and their hair briefly looks more like her mother's hair from her true form. Pangs of concern shoot through you as the children naturally hide their fiendish nature. Both of them were now half-demon and it's uncertain as to whether it will be a problem or not.

For now though, you are happy. You have your wife and children. The succession is safe and the realm is peaceful.