You rode Mabel for about 5 minutes, as you got exhausted from seeing her jump so many hurdles while you were also making sure that she didn't break any legs as you went all over them, and gave her carrots. Once you were finished riding the mare, you return to the stables as you both were exhausted from riding.
You decided to brush Mabel to see if she wasn't shedding, so you grab a brush, while also locking the door to her pin. Once the door was locked, you take off Mabel's reins, and saddle as you started brushing the loose ends in her mane, and tail. However, Mabel got too frisky after you groomed her, while also licking your face a bit. This caused your ears to extend a bit, while you fall against the locked stable door, and Mabel tore a piece of your pants, and underwear to reveal your exposed penis as she started licking on it.