Mary's cock slapped against her leg inside her loose sweatpants as she headed to her car. As she drove to meet her friends for lunch her horsecock begged for attention slipping further out of its sheath and down her leg.Mary was struggling not to succumb to the needs of the beast in her pants as her whole body started to beg for attention, her horse pussy started to leak and her ass started to throb. As she pulled up to the restaurant she tried her best to calm herself. Her cock eventually began to retract back into its sheath. Mary walked inside the restaurant to meet her friends for lunch before going shopping. She spotted her friends at their table, Susie who was her best friend, and her other close friends Carrie and Taylor. They saw her and called her over. "Hey Mary what took you so long?" Susie asked,
"Oh something very unexpected popped up that i had to deal with haha." Mary replied "Alright well were all glad your here now, so lets have some fun." Carrie said. And with that they ordered lunch, while they were waiting though Mary's horsecock started to come to attention again and this time it would not be so easy to get rid of with all her gorgeous friends surrounding her, Mary needed to deal with her monster and get some relief. "I will be right back girls, i have to use the ladies room real quick." Mary said.
Mary rushed to the restroom while hiding her cock the best she could. She quickly got into a stall and locked it, immediately freeing her huge 2.5ft horsecock. Mary overwhelmed with her lust started stroking her cock with both hands, but that proved not to be enough, she took one hand off her cock and started fingering her horse cunt. Moans echoed through the empty bathroom as Mary begged for release. Her ass throbbed as cum churned in her balls bringing her closer to her climax. Mary had never done anything with her ass before, but her puffed horses rear demanded attention. She began fingering her virgin horse ass which pushed her over the edge. Mary's huge load of baby batter rose up the shaft of her enormous horsecock and exploded out of her flared head, gushing through the air and splattering all over the back tiles of the stall wall and covering the toilet. Her horse pussy also sprayed its girlcum all over the back of her balls and running down her leg. Mary gave a huge sigh of relief as her cock satisfied for now, slithered back into its sheath. She cleaned herself up and pulled up her sweatpants over her cock leaving the cum filled stall for the next unsuspecting victim and returning to her friends for lunch. As Mary sat down her friends realized what she was wearing. "Well we definitely have to get Mary a new wardrobe while we are out shopping haha." Taylor said, all the girls joined in on the laughter as their food came. They finished up a great lunch and headed to the mall to go shopping.
The group of girlfriends went to one clothing store to the next on a shopping spree. They stopped at a store for dresses to go partying later. They browsed through the dresses and were fixated on one for Mary to try on since she hadn't tried anything on all day. They rushed Mary to the changing rooms to try it on, Mary was reluctant but eventually agreed since the changing rooms were private and she really did want to try on the fantastic dress. Mary stepped into a fitting room and shut the door. Susie had also gotten a dress to try on and stepped into the room next to Mary, and Carrie and Taylor went to go pick out their own dresses. Mary changed out of her clothes and into the dress. It was a perfect party dress,it was black and very skimpy low cut exposing the top of her large DD breasts. It hugged tightly to her curves and squeezed her slappable bubble butt stopping just above mid thigh. But there was a very obvious problem, there dangling between her legs was her rapidly hardening horsecock and balls begging for release again. Mary couldn't help herself, she leaned against the wall facing the door and started to stroke her monster cock as it rose to its full glory. Her sopping horse pussy and her ass also wanted attention. She began to alternate fingering her throbbing horse cunt and her puffed ass while continuing to fulfill the needs of her cock. Meanwhile Susie was finished putting her dress on and was standing at the door to Mary's fitting room wandering what was taking her so long, when she heard Mary struggling with something she thought Mary might need help getting her dress on. So she decided to go in to help her. Mary was on the edge of cumming when all of a sudden Susie burst into her room, as soon as Susie saw Mary she screamed shocked and horrified at seeing her best friend with a huge throbbing horsecock and it was pointed right at her. At that moment Mary couldn't hold on any longer and shot her hot sticky seed soaring through the air covering her best friend in her contagious cum.
Susie immediately felt her body getting hot as the changes took hold. The bulge of her forming cock appeared on her tight dress as her pussy and ass changed into their horse counterparts. Susie couldn't believe what was happening to her, she moaned as the transformation rocked her body with pleasure. Her growing cock being restricted started to slither up her dress towards her ample cleavage. Her cock started to take the shape of a horsecock at around a foot long as her balls dropped into their sack clearly outlined in her dress below her growing cock. Her monster of a horsecock burst through her breasts and continued to grow upwards until it reached its peak of 2.6 feet. Through Susie's dress her horsecock was very defined stretching up her torso and out her bosom. Susie screamed as a powerful orgasm sent cum showering out of her flared cockhead and raining down upon her adding to Mary's cum and covering Mary in her seed as well. Mary was so turned on by the event of seeing her dearest friend grow her very own horsecock that she grabbed Susie and embraced her in a passionate kiss pushing past Susie's horsecock. Susie returned the kiss and shut the door with her foot. Hearing the screaming of their friends Carrie and Taylor ran into the changing rooms. Carrie went to open the door to Mary's fitting room and covered her hand in cum. Carrie immediately felt the changes as the curse took hold. Her horsecock burst through her yoga pants that she was wearing and spurted cum all over Taylor who in turn grew her own horsecock. Hearing their two friends grow cocks of their own Mary and Susie stepped out of the room to see their friends covered in each others cum. With all four of the girls now sporting massive erections due to the oozing need of their mare pussies, they commenced in a lust filled orgy. Shoving their huge horsecocks into one another s pussies and thrusting with passion deep into each others wombs. They were in a state of intense pleasure as they fucked themselves silly. They orgasmed together deep into their partners cunt, filling them up with their horsecocks baby batter and visibly extending their bellies until they looked slightly pregnant with the amount of cum filling up their wombs. When their pussies were sufficiently filled they penetrated the waiting puffed and throbbing asses of their moaning friend. They then fucked them in the ass until their release came and cum flooded into them filling them up even more to the brim. The four friends went on like this until every girl was filled up with as much cum as they could take and every girls balls was devoid of cum, and after that they laid down together in the cum covered changing rooms recovering after the best sex of their lives, kissing each other with a new found passion for their friendship.
When the four friends got some of their strength back they got cleaned up and bought new clothes that weren't covered in cum. As they were leaving the mall they all agreed that they definitely need to do that again and soon. Then they all went their separate ways with a goodbye kiss. Mary headed home very happy about the four friends taking their relationship to the next level even if they now all had horsecocks.
Unknown to the four friends is what carnage they caused with their very contagious cum.