You feel this anger towards the other cow, this... jealousy? You feel jealous of how the cow has been treated by the farmer, you kinda want to be as appreciated as the other cow. You loved the first time that you were milked, it felt so relaxing, so wonderful. Somehow, even though you are queen, being a cow was easier and more fun than being the queen. That's it, you had to change back, even though it would cause a massive headache. You focused all your energy onto the used to be bull, already feeling your fur change from being jet black to spotted and patchy, you feel the udder grow back and fill up with milk, while the copy of you changes back into it's original form. The copy of the queen's memory starts to fade, becoming more animal-like and going back to the bull's mind.
You were back to being a dairy cow, and the bull was back to... being a bull. However you were still inside the bull's pen. You could change location, but your headache was grow worse. You had to decide...