She was waiting for him in an empty classroom, knowing he would walk by soon. She had seen him make this walk many times since he broke it off with her and the boy who lived always made it alone.

She concentrated hard on the spell she was casting, it was very complicated magic. Cho Chang was not lacking in magical talent but it still had taken her weeks to master this difficult, wonderful spell she had discovered. Today was the day, and very soon it would be put to use.

Harry came up the staircase on the east side of the castle and stopped for a moment to take in the view. His mind was full of thoughts, too many to count, and he was lost in them as he walked by the empty classroom. All he heard was "stupify!" As the spell sent his sprawling to the ground.

Some time later Harry awoke to find himself in an empty classroom, magically bound to a chair. He didn't have to look far to see who had done this too him, Cho Chang stood in front of him, overjoyed.

"Hello Harry, sorry for the surprise but we needed to sort some things out." She said with a sly smile. Harry tried to answer her but found himself unable, restrained by a silencing charm.

"When you left me Harry you really embarrassed me. You sent me running in tears down the hallway. They all call me crying Cho now, thanks to you." She said as she cast an unknown spell on some potion ingredients. She picked them up and dropped them into a cauldron, which emitted light smoke and hissed violently.

"But in just another minute here Harry, it will be time for your punishment." She said, followed by silence. Harry hardly even had time to wonder what she could mean before she grabbed a cup and filled it with her mystery potion. Her face contorted in a look of disgust but she forced it down. And then began to smile.

"Oh Harry, what fun we will have." Said cho as she began to run her hands under her skirt. Harry began to notice a growing bulge from under said skirt, and his eyes went wide with realization as she took it off.

"That's right Harry Potter, that potion just gave me a big fat dick." She said as she rolled her magically created new toy in her hands, stiffening with her approach. It was 9 inches long after it achieved full hardness, long and smooth. She began to run her fingers up and down her new cock playfully, and as she closed the distance the width and length of Cho Chang's New dick was starring Harry right in the face.

"I know this is unexpected Harry, but trust me when I say that sucking my new cock for me will be the best thing that ever happens to you. You want this big dick in your mouth and you'll have it. Because right here right now you are my fucking mouth bitch, my little faggot boy whore. So open up baby and get ready to suck me dry." She said as she ran her hand through his hair. Harry was paralyzed, he was immobilized by yet another spell.

As Cho moved her soft hands to his lips and began to part them for him, Harry's entire body was hit with a mixture of shock, horror and adrenaline as if trying everything to shake the spell. It was to no avail however, within a few seconds Cho stood in front of him, her cock bouncing from her last steps.

Harry looked at her in that moment. Her large perky breasts rested on her slender frame majestically. Her hands on her hips, her thick strong thighs parted before leading up to her new dick which was now about an inch from Harry's face. The large round head right between his eyes, he could even smell it. That mixture of sweat and pheromones that filled his nostrils.

"I know you'll love it Harry, you'll be begging for me to fuck your mouth and everywhere else before this day is done." She said, as she grabbed the back of his head and eased his mouth onto the tip of her cock.

"Oh this fantastic!" Thought Cho as Harry's wet mouth slid onto her new organ, sending waves of new and unknown pleasure coursing through her. She began to slowly fuck his mouth, pushing in and out, enjoying the sensation.

"Nobody leaves Cho Chang Harry, least of all a little bitchboy like you." She humiliated him as she speed up her thrust, doing a few in quick secession, then slowing down to go deeper. "I don't give a shit about who you are Harry, because this is what you are now, my wet hole to fuck. When I want, how I want you don't have any say. After my cock empties into your mouth your going to swallow it, then I'll show you your new home my little mouth pet. My sweet cumguzzling slut." Cho said as she began to fuck his stupid mouth deeper and faster. She was thrusting with reckless abandon as she finally let out a scream of pleasure and filled Harry's mouth up with her thick warm spunk.

"Oh my God Harry, that was so good." She said as she slid her cock out of his mouth, she rested it on his lips and squeezed out the last remnants of buzz before speaking again.

"Now it's time for your treat little fagboy, I'll help you for now but soon you will be doing it all on your own like the little slut you are." She said laughing as she tilted his head back, the cum began to run slowly down Harry's throat and he got his first taste of what was to become his only purpose in life.

"Welcome to the rest of your life." Cho said as she gave his face a slap with her soft but still heavy penis. She walked over to her wand laughing, shaking her backside tauntingly at Harry before sending him crashing to the floor with another stunning spell.