Ponyboy

By Sarah

       “But mom, why can’t I be a ponygirl like Sarah?  She looks so cute in her tack, all quivering and prancing.  He ass and tail really make me hard, just thinking that only ponyboys can fuck her.  Please mom, I want to fuck her.  Can’t I be a ponyboy?”

       John stood at the table looking at his mom, and out the window at his slave sister Sarah.  He had watched as his mother and father had taken a nude and struggling Sarah outside, and forced her into the hoof boots, bit, bridle, harness and tail, that forever marked her as nothing more than a ponygirl.  She had turned 18, and had been caught looking at sites dealing with ponygirls.  In Dolcett, looking at a site about something, and rubbing your sexual organ to it, meant you more than likely wanted to be it.  So her parents had forced her into harness that instant.  Now her brother John was looking at her, with a huge tent in his pants.

       His mother and father looked at their son, and his feminine features, and had a brief eye chat with each other.  Shrugging, his mother finally said the words he had been hoping to hear that morning.

“Ok, if your father says you can, then you can join your sister.  But if you do, we expect you to give her a foal within a month, or your cock is going to be chopped off, and you’ll be a gelding for the rest of your life.  Which, just so you know, for a Ponyboy gelding is about a week.”

       John squealed in delight as he pulled off his clothes.  His mother and father grabbed him and took him outside, and quickly had him in his own set of boots, harness, bridle, bit, and tail.  John pranced about in his new tack as he got used to the feeling of being nude outside.  He could see his sister prancing nervously, watching him, probably wondering what was going on. 

       John and Sarah had grown up in Dolcett as brother and sister, but they hadn’t fucked each other yet, because their parents didn’t want them to be fucking something in the house, when there were a lot of opportunities outside the family.  However, both had still wanted to play, so to try to separate them their parents had caught Sarah looking at pictures of ponygirls, and rubbing her pussy.  John however wasn’t going to let the opportunity pass him by, and that had led to his begging and pleading with his parents.

       Sarah watched as her mother came towards her, and took hold of her reins.  Sarah had to follow as her mother led her to a padded waist high bar, and bent her over it.  Sarah felt her hands being cuffed to the sides of the frame, and her ankles spread and cuffed, exposing her pussy to the world.  She felt her mother lift her tail away from her ass, and then she watched from between her legs, and her brother was led forward, towards her vulnerable position.

       John pranced with excitement as he was led by his father to his bound sister.  His cock was raging hard, and standing up proudly.  His father led him right to the back of his bent over sister, and then gave him a hard smack across his ass, sending his cock into his sister’s pussy.  John felt something give way within her, and heard her squeal behind her bit.  John was hyper eager, and began pounding away at Sarah’s pussy.  Sarah just squealed and bucked as her brother fucked her relentlessly.  She felt her pussy moisten, despite her revulsion, but her animal instincts took over, and she began thrusting back onto her brother’s cock.

       Mother and Father watched their slave children fucking, and decided to encourage them some more.  Both picked up riding crops, and began beating John and Sarah on their asses.  Both ponies whinnied in pain and arousal as they were pushed to new heights of stimulation.  John tensed suddenly, and with a loud whinny, unloaded a huge load of cum deep within his sister’s pussy.  Sarah felt her brother erupt within her, and it sent her over the edge.  She squealed behind her own bit, as she came, bucking on the mating frame.

       John was taken off his sister, while she recovered.  He pranced around the yard a little, to allow his cock to reload with more cum.  Sarah was left bent over the frame, her pussy dripping the cum her brother had shot into her pussy, down onto the backs of her thighs. 

       Sarah and John fucked again and again that first day.  When the sun went down, both ponies were led to the family stable, and placed in separate stalls.  Both brother and sister nuzzled each other, looks of shock, shame, and excitement on their faces.  As they settled in to sleep, both had wet dreams about the other. 

(I know it is short, but I want to leave it open for comments and ideas, to see if I should continue the story or if it isn’t to the liking of the forum.  Please vote, and let me know if I should continue or not.)