If you want to keep bulls, they have to be milked routinely. Otherwise, they swell up and its actually very painful for them. Serina cuddles with her big virile bull while she milks his throbbing cock. She edges him for a while with her thumb. The stud wants to cum. Sometimes, males have no patience, which is why they have to be trained. Serina tells the bull, not yet, and continues to edge him. He starts thrusting his hips. He fucks her hand. Finally, she lets the stud cum. He cums like a fountain.