As the king's children, they've been sheltered from the world's curiosities, but the brother's bi-curiosity grows stronger each day. When his sister catches him watching lesbian porn, she sees an opportunity to educate him. She teaches him how to pleasure a woman, using her own body as a tool. He learns quickly, his thick, long cock sliding in and out of her wet pussy as she guides him, helping him understand the nuances of bisexual pleasure. The king walks in, surprised but not displeased, watching his children explore their desires together.