The Step-son Inseminates the Queen

My step-son has returned home from waging war with his step-father, the king. He deserted because he couldn't stand working underneath his step-father any longer. What does he do first? He comes to see his step-mother, the queen, of course. We share a mutual hate for his step-father, and I know exactly how to comfort my boy. As he blows off steam and lays out all of his grievances I make sure his thick cock is taken care of. There is no doubt that I made a beautiful cock on that boy, and he gets to use it on his step-mother whenever he wants. As I do everything I can to ease his stress of war, and his step-father, we eventually hash a plan to overthrow him. What my step-son needs more than anything is an heir. Since he's not married, what better way than to plant his seed in his step-mother, and keep the royal lineage pure. He cums deep inside of me, securing the fate of his offspring, and our kingdom.