Just a slight rewrite of a chapter in the Harry Potter book “The Goblet of Fire”. Just before Christmas, the Yule ball is intended to bring the students from different magical schools closer. Harry has survived the first task, but still has to figure out what clue is hidden in the golden egg, to prepare for the second task.
Things didn't look too good for Harry and Ron. The Yule ball was coming up soon, and neither boy had secured a partner. Ron had asked Fleur Delacour, who hadn't even bothered to answer him. And Harry had asked Cho Chang, who had already promised to Cedric Diggory, the other Hogwarts champion. It was time for more drastic measures.
Thanks to the fact that Harry was one of the Triwizard champions, he had access to the restricted section of the library, as he still had to solve the egg’s secret. And both Harry and Ron were browsing through very obscure books, trying to solve a much more urgent problem. How to get a date?
In the end the solution was simple, but it took some convincing before Ron agreed to be the subject of a spell that would turn him into a girl for the next month. One night was one thing, but a full month meant that Ron had to take classes as Ronda, and live in the girls dormitory. The biggest problem was that the spell would not just turn his body female, but match his mind to his body.
But sometimes you gotta do what you got to do. And during the night of the new moon, two weeks before the ball, Harry performed the complex spell on Ron. And the result was a positive example of Harry's spell casting, as Ronda was a more mature, more beautiful version of her sister Ginny, with a gorgeous amount of ginger hair, a fair skin, generous breasts, and a sexy voice, but more importantly, three inches shorter than Harry, rather than half a foot taller.
They had prepared ahead of time, so Ronda had the right uniform, suitable for a Hogwarts witch, with robes and hat and enough skirts to get through the next month. But, she would need a dress for the ball, and Harry had to pay up to get her exactly what she wanted. Ronda's taste was not cheap.
And there laid the root of the problem. In the dress shop Ronda found the most beautiful dress she'd ever seen, and she wanted it badly. But the bag of golden Galleons that Harry had given her was not enough to pay for it. And as she cursed Harry in her mind, thinking of a way to have him send some more money to the shop, a kind woman, quite beautiful herself, offered a solution. She would fully pay for the dress, if only Ronda would go with her son to the ball. It was an easy decision, as Ronda realized she would have enough money left to add some gorgeous shoes and the right amount of jewelry.
And thus, through an unbreakable vow Ronda was bound to Narcissa Malfoy's son Draco, through the night of the ball. And where Ron would have refused to deal with anything Malfoy related, Ronda appreciated the apparent unlimited amount of gold the family possessed.
So, Harry found himself once again without a date. Ronda, due to the vow that had bound her, was even positively charmed by Draco, and Harry saw them even kissing and touching each other, every free moment they had.
Trying to resolve the issue Harry sought a direct confrontation with Draco, and an agreement was reached. More of a bet really. If Harry won, Draco would transfer Ronda's vow to Harry, and she could also keep the dress. But, if Draco won, Harry would lend the one spellbook to Draco, and submit to a spell of Draco's choice. And although Harry didn't plan on losing the bet, he was comforted by the thought that none of the spells in the book could seriously harm him.
Harry had not counted on Draco's cunning tricks, and on the broom race from the castle to Hogsmeade and back, a feat Harry would normally win on his Firebolt, he was slowed down by a dementor, that really was a boggart, easily resolved through a Patronus and Riddikulus charm, but it did cause Harry to lose the race.
And thus did Harry find himself on the other side of the spell that had turned Ron into Ronda. But, because the spell did not happen during a new moon, he would be Harriet for six months rather than one month. The only good thing about the spell was that she didn't feel like Harry in a female body. She felt like Harriet, as if she'd been a girl all her life.
Draco had counted on taking both girls to the ball, but that was simply not allowed. And since he was bound to Ronda, he found a way to bind Harriet to the captain of the Slytherin Quidditch team, Marcus Flint. It was a simple spell actually from the same book, but it made Harriet want to kiss Marcus and it was so compulsory that she was willing to do anything to snog with him.
The effect was so sexy that Draco applied the spell to Ronda as well, who from that moment was even more willing to do anything for Draco, as long as she could snog with him. Unbeknownst to either of them, the combination of the two spells made the original transformation permanent. The kissing spell would slowly fade, but neither Ron nor Harry would ever come back.
One of the “tricks” that Draco had in his pocket was that if Ronda or Harriet did not have a chance to snog with Draco or Marcus, the only way to resolve their compulsory needs was to snog together. This caused them to be kicked out of the girl's dormitory, and Ronda and Harriet had to live outside their House community, in one of the guest chambers that Hogwarts reserved for visitors that needed to stay overnight.
With Draco and Marcus often unavailable, the kissing between Ronda and Harriet soon became love making, as they started sleeping in the same bed and discovered some of the more pleasant parts of being a woman. First it started with kissing each other's womanhood, but it soon went tongue deep, eating each other out, followed by the same tongue in the other's throat.
Harriet herself had become quite a beauty. People still stared at her, but not so much for the cute scar she still had on her forehead, although mostly covered by her ravenblack long hair, but more for her voluptuous curves and long legs. Her dress for the ball showed more skin than it was covering but Harriet felt powerful in it, and that gave her the confidence a school champion needed.
It was very satisfying that when the ball finally opened all the other champions looked at her with interest. Viktor Krum, with a beautiful Hermione at his arm, checked out Harriet's behind, both Cedric and Cho had a bit of drool between their lips, and Fleur, used to being desired thanks to her Veela heritage, kissed Harriet full on the mouth, promising a hot dance together later.
But surprisingly, Marcus Flint, who was a brute during Quidditch matches, was a prince on the ballroom floor. More than a head taller than Harriet he almost lifted her from the floor, which made it look like she was gliding across the floor.
Oh yes, she danced with Viktor, with Cedric, with Draco, with Cho and Fleur, and even with Hermione, but every time she ended up back in Marcus’ arms, and the two pulled into each other tighter and tighter. There was something very appealing in simply giving yourself over to a strong man, who would also kiss you until you couldn't think anymore. It was not surprising that Harriet lost her virginity that night to her ballroom prince.
Similarly, on the last night that Ronda was bound through her vow to Draco, her dress had without doubt been the most stunning, and Draco had not shared her with anyone else, she gave up her womanhood to him, and he had the pleasure of peeling the dress off her body.
Despite the unbreakable vow lifted and the kissing spell fading, Draco and Ronda kept seeing each other, often sleeping together. And Harriet showed Marcus how well she could kiss other spots of his body, and she often found a few minutes between classes to give him a blow job in a broom closet or an empty classroom.
It was Hermione however who, with Ron gone, had given herself to Viktor, and found out she was pregnant. Victor was very pleased with himself and demanded she live with him in Bulgaria, and his parents made it clear they would take care of the baby while she finished her final years at school.
The three friends intimately discussed the situation, and where Ron and Harry would have been clueless on these kinds of female problems, Ronda and Harriet were very understanding, and even realizing that the same could have happened to them, as they had not been using any protection thus far. But, in the end they settled on celebrating that wonderful gift that only womanhood offered. Never before did they feel so connected.
And funny as it may sound, the Yule ball, intended to bring wizards together, did more than that. Slytherins and Gryffindors, enemies by default, were mixing now and building relations, and where it originally looked like that Ronda and Harriet were bound to Draco and Marcus, the latter two found that they could not function anymore without these women in their lives.
And instead of using violence and trickery to get their ways, they used romance and charm to wow the women they had fallen in love with. And as Ronda was lovingly adopted in the Malfoy family, Harriet found an immense satisfaction in being loved for who she was, the strong arms of Marcus Flint holding her up as she faced the gruesome tasks that were waiting for her in the remainder of the Triwizard tournament.
When Harry in his first year begged the sorting hat not to be put in Slytherin, now, as Harriet, she thrived in the power she now felt, both as the hero of Gryffindor and the object of affection by the Slytherins. Hogwarts would never be the same again.