Seeing all the uma horse stuff reminded me about this one anon in /vg/ who posted about how mares can get hyper attached to their owners/trainers and get horny around them. It gets pretty bad as mares in heat will get excited at the sight/sound of their owners. Which is why these horse owners have to be careful when going into their stable since they like to shove their rears onto their owners and the application of horse pussy with hundreds of pounds of force to your torso or face can be very unhealthy to your body. So yeah...Mares can unironically get addicted to humans.