You ignored the itch as you thrusted your growing cock into the Unicorn mare as she let out a whinny. You started thrusting in and out of the strange mare but you didn't really care what was happening to you as you continued to thrust and just let your instinct take over as you took the mare.
You barely noticed as your fingers and feet fused together and became hardened and black as they turned into hooves. You kept thrusting and let out a moan that turned into a whinny as you threw your head back and thrust faster. It was one of the strangest, but at the same time most amazing experience of your life as you mated with the mare.
You felt wet fur rubbing against wet fur as your balls slapped against the mare's vagina. She let out a whinny as you thrust in one last time and penetrated as deep as you could before your seed poured out into the mare's womb. You neighed as her vagina clamped down on your cock and drew out even more semen as your thrusts started to go slower and slower before you stopped.
As you dismounted from the mare you were shocked to find yourself falling onto all fours and felt something strange on your forehead. You tried to reach up to it but your arms wouldn't bend to reach it. The mare looked down at the floor as the mixture of your juices leaked out of her vagina.
"Well, well we've got ourselves a handsome Unicorn stud," the attendant said with a smile as she patted your neck. "I must say I thought it would be harder, but you mounted her with barely any hesitation. You're going to make a fine stud for us once we get more mares, of course we'll need your help for that."
You tried to protest but you just let out a neigh as she lead you into the stall next to the mare. "Don't worry, you just relax a little and then I'm sure we'll find a new mare for you to have fun with. Doesn't that sound great?"
You couldn't protest and you looked down at your hooves as if trying to figure out what to do now. You couldn't help but wonder about your girlfriend as you looked over at the mare. Briefly the idea that it was your girlfriend crossed your mind, was that possible? You had no idea as you looked at the attendant.
"Oh right, you're still wondering about your girlfriend aren't you?" She asked and chuckled lightly.