(c) Friday, June 24, 2011 by Slash Dog
Sherri was so thrilled when she was accepted into the College of Canine Knowledge. After being inducted into this lifestyle by the black men she met at the bar she really felt she found her calling. She didn’t care what her family or friends thought, all that matters is she finally liked going to school and enjoyed what she was doing.
One of her classes the first year was called “Anal Knot Preparedness.” Sherri looked forward to this class because anal was something she needed the experience in. In the past her boyfriends would only finger her ass but it wasn’t until that night after the bar when she had her first cock in her ass, and it was a big black one to boot!
This was a class Sherri never missed because each time there was always a different dog for the girls to practice with. Being a freshman she had to wait her turn and watch the other girls enjoy having the dog fuck their asses first. Not many of them could take the knot, including Sherri, but this was something she felt she had to excell in to show up those upperclass bitches. She asked the professor what she could do to better take the dog’s knot in her ass and he told her she’d have to work on this at home.
Because her parents wouldn’t allow her to have a dog Sherri had to find other ways to prepare for class. She would take the empty bottles of wine after her mom had finished them to stick in her ass to stretch it. After a few days the bottles were going in her ass pretty easily. To step it up she took her brother’s baseball bat and used that. She was able to get it in her ass until the “sweet spot” of the bat, then finally until the trademark on the bat disappeared inside. Fisting came easy after that and Sherri could go as deep as her wrist.
About a week after she did her extra credit homework Sherri got her chance to shine in class. A nice horny Rottweiler was brought in and she pleaded with the professor to let her show him what she could do. He agreed and made Sherri get on all fours. She put her ass high up in the air and her face down on the pillow and awaited her lesson. The professor inserted a dildo in her pussy so the dog would fuck her ass.
Rotty wasted no time and mounted her, madly humping to find her hole. One of the other girls helped his cock find Sherri’s ass and within seconds he was inside humping away. Sherri had no problem taking the dog’s throbbing cock in her ass but never expected him to fuck her so hard & fast., and she liked it. Her ass was being rammed by the horny dog and both of them were rocking back & forth very quickly. Sherri’s young perky tits jiggling away with Rotty panting heavily on top of her.
It wasn’t long until Sherri felt his knot swell inside her. Until now when the other girls tried it in class the knot would pop out of most of them because of their tight asses. But Sherri knew her extra credit would pay off. He knotted her good and fucked her with short violent thrusts. Sherri felt so good having the dog tied to her ass and started to feel his cum gushing inside it. The knot was so tight not a drop came out and she smiled as her ass filled up with that beautiful warm dog cum.
This went on for about 10 minutes and then finally PLOP out came his cock and also his cum leaking out. Rotty licked her ass clean and the class applauded Sherri. The professor praised Sherri for a job well done and was happy that she listened to his advice to practice at home. Sherri was happy too. This became her favorite class and Sherri was the class star anal dog fucking whore.
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