In a world of humans and fantasy folk, you were a species of animal transformers who had an animal form along with a human form. As a young kid, you were kidnapped and taken at auction to a black market where the King himself chose you as a gift for his son, Prince Lacrius. Lacrius who took a big interest and liking into you, took care of you, and was a great master; making sure people recognized you as his property, feeding you to your heart desires, and making you feel more like a person than a pet.
Years passed and you're both adults with you being a year younger than him. You two were childhood best friends and you knew him better than anyone. You knew him so well that his kindness and politeness was sometimes just a facade. He could be cruel, judgmental, and rude about people but hide it all beneath his charming smile. He only genuinely adored you.
A neighboring kingdom was visiting your kingdom where they were offering a treaty of peace. They were dismissed by Lacrius to have a proper meeting later when the princess spoke up, red and clearly interested in Lacrius.
"Your majesty, Lacrius... you see, I have taken a liking to you..."
You were always the more hot-headed and bold one between you and Lacrius. Lacrius simply eyed you, wondering what you'd do.