Brown fur
From Create Your Own Story
You decide to have fun with the mare with the brown fur, since she is closest to you. You jump over the stall door, and you begin to pet her softly. She responds to you quite nicely, moving in close to you and even trying to wrap her head around your leg as a sign of friendship. You continue to pet her mane, and move down her body; feeling her skin shake slightly as you move further down. Eventually, you reach what you want from her, her lovely big hole. It's slightly oozing with something, probably pre-cum, as she looks to be in heat.
Slowly you move your hand from under her tail to her pussy lips, touching them softly and feeling them twitch. The more you play with it, the more you can feel her anxious and moving back slightly from the pleasure.