Summary: The Weasley twins love to celebrate their birthday with a new prank. Draco and Hermione are two of the students that get firsthand experience. Just a tiny bit of explicit citrus included. (Both Draco and Hermione are in their sixth year)

Disclaimer: This is a work of (fan) fiction using the world and characters of Harry Potter belonging to J.K. Rowling. Only the plot belongs to me.

FB Group Prompt: April Fool's Day

Rating: M

Genre: Humor/Romance

Characters: Hermione G., Draco M., Fred W., George W., Severus S.

A/N: This story is AU and OOC. Voldemort never came back and there was not a second wizarding war. Everyone lives. - Go ahead and leave a review, please!

Foolish April Birthday Fun

No one thought that their pumpkin juice tasted off or looked any different. Of course, that was one of the reasons it was such a successful experiment. If someone had realized their morning beverage had been altered in any way, the fun filled day would have never happened. Fred and George Weasley smiled smugly at one another and vowed to add the new potion to their growing line of products.

~ooOoo~

First of April - Breakfast in the Great Hall

Bangs and explosive laughter could be heard throughout the hall. April Fool's Day had officially begun at Hogwarts. Professor Snape looked even more disgusted than usual and kept his eagle-eyed stare on his house's table, silently admonishing them to behave. Headmaster Dumbledor was simply delighted at the gaiety of the children in the hall. He was very fond of this holiday as he thought laughter was often the best medicine for all, even those that didn't know it was needed. Most of the other professors happily ignored the students' breakfast pranks as they believed it would allow for a quieter day in their classrooms having gotten the silliness out of their systems.

Suddenly, throughout the hall, loud pops and outraged screams could be heard. Some of the students were standing with complete looks of disbelief on their faces and pointed at various witches and wizards. The ones that were subject to finger pointing were undergoing transformations. After a few moments, the students that had been obviously pranked were left as the opposite sex than what they had been born as. Witches were wizards and vice versa. Even the professors were not immune as Professor Snape stood and everyone could see his greasy black hair had lengthened to fall down to his waist and he was sporting quite a buxom bounty on his chest. Professor Dumbledor took that moment to stand and bow at the now feminine potion master and gallantly offered to help seat the confused and angry professor.

~ooOoo~

Gryffindor Table

Hermione could feel the changes in her body and was aghast to look down and see her once blossoming figure flatten out right in front of her eyes. She quickly reached up to her long bushy hair and made the discovery that it was very short and not so bushy. She also felt an odd heaviness in between her legs and realized that she had sprouted male genitalia. She was, needless to say, mortified. She noticed her friends; Ron and Harry were both staring at her with shock on their faces. She also realized with a quick glance around, that she wasn't the only poor soul that had been made the butt of the joke. She spotted the Weasley twins and narrowed her eyes at them. Of course, they would be the ones to pull a prank of this magnitude on helpless victims. She would definitely be writing to their mother as soon as she was back to normal. She smirked as she envisioned the howler Mrs. Weasley was sure to send them in response.

~ooOoo~

Slytherin Table

Draco was horrified. How dare someone do this to him? His father was most certainly going to hear about this. He grabbed his newly formed breasts and thought that if he was going to have tits, they'd better be impressive. From the way Blaise was drooling at him and how they felt in his hands, they were. He started towards the exit, along with quite a few other newly transformed pupils when the headmaster's voice stopped everyone. All Draco heard was that classes were dismissed and to see Madam Pomfrey if needed. He also saw Professor McGonagall and Hagrid grab the identical Weasley twits before they could escape with the throng of students. Draco pushed his way out of the hall and broke into a run until he reached the Prefect bathroom on the sixth floor.

~ooOoo~

Sixth Floor Prefect Bathroom

Hermione had finally found an unlocked and seemingly unoccupied Prefect loo after trying two others on different floors. Once she was inside the locked room, she stripped off her clothing. Standing in front of a full length mirror, she wrinkled her nose as she examined herself from head to toe before zeroing in on the penis and bullocks that had replaced her vagina.

Draco stood in the corner near the large walk-in shower and watched Hermione take off all her clothes and stand naked in front of a mirror. He was alarmed that he was a bit fascinated with seeing Granger as a boy. She now sported short tightly curled hair and her figure was slender without the curves that he had recently noticed his rival trying to hide under her school robes. As a male, she now had lean muscles that were more noticeable as she twisted around trying to view her new form at every angle.

Suddenly she stopped and slowly turned around to see the platinum blond Slytherin standing naked by the large shower. "Merlin's Sake, Malfoy! Why are you watching me and why are you naked?" She tetchily demanded.

Draco scowled and instead of being embarrassed, he stood proudly and thrust his ample chest out. "Well Granger, I'm certainly not ashamed at how good I look as a man or a woman. Just look at my fucking figure!" He spun around so she could sample his sexy body. "I rock this bod!" He declared while he sashayed closer to her.

Hermione could feel the blood rush to her cheeks. Of course he'd be arrogant as a female. Whatever redeeming qualities Draco may have lacked in the Gryffindor's eyes, self confidence was not one of them. She jutted out a hip and placed her hand on it, determined to not let him win this little showdown. "I always thought you were a bit fem, Malfoy." She spat out at him. "Looks like your natural inclinations have finally been allowed to come out." She noticed his immediate look of anger and smirked at him. Take that, she thought.

The blond sneered at her and moved until he was only inches away, using his height to try and intimidate her. "I noticed you stripped down as soon as you came in here, bookworm. Trying to figure out how a dick works? The weasel not letting you touch his?"

"None of your business, Ferret!" Hermione spat at him. "Just because you slut yourself out doesn't mean everyone else does. Not that it's any of your business, but I don't even like Ron like that." She tried to step away but the Slytherin stopped her. "Let me go!" She shouted.

Draco wasn't sure what came over him at that moment. Maybe it was because of this morning's gender swap or perhaps his recent attraction to the swotty brunette in front of him, but he suddenly grabbed Hermione's head with both hands and pressed his mouth upon hers. He used his lips and tongue to get her to open her mouth and after a brief moment of stillness, she reacted by kissing him back. Well, he thought, maybe my morning just got better. He brought one of his hands down to her neck as he started to trail his lips along her jaw line. "Granger," he murmured against her skin. "How do you feel about a bit of experimentation?"

Hermione moaned as his lips continued along her jaw and that spot just below her ear. "I'm always happy to improve my education, Malfoy." She answered huskily. Then she did something that made Draco groan and shift his body against hers. She brought her hands up to his breasts and tweaked his nipples lightly. She continued exploring his tits and touched him the way she enjoyed when she occasionally indulged in self pleasuring. She brushed her fingers along the bottom of them and circled the hardened pink buds before pulling and pinching them, a bit rougher each time.

Draco was surprised at her boldness but quite pleased with the results. He felt her cock beginning to harden against his thigh and he chuckled. "I'm pretty sure you're enjoying this, Hermione." Instead of answering, she fisted one of her hands in his silky tresses and began to lick his throat.

Hermione began to feel a tingling in her lower region. At first she just thought it was her body's natural response to what was happening but it began to spread throughout her body, from her scalp to her toenails. She pushed against Draco and when she opened her mouth to say something, she felt her breasts grow back to their previous stature, her hair grow long, and her brand new penis shrinking. None of it hurt, thankfully but it was a strange feeling, like worms wiggling under her skin.

The Slytherin felt a surge of anger when Hermione went from feeling him up to pushing him away until strange tingles all over his body indicated something was happening. He watched as Hermione's hair began to quickly lengthen and her magnificent boobs made their reappearance upon her recently masculine chest. He looked down at his own body and saw himself changing back into his male self.

About five minutes after it began, it was done. The two students finally became aware of one another and Hermione swiftly tried to cover herself from Draco's view with her arms. Draco licked his lips and leaned in towards the Gryffindor. "No need to be shy, pet. We really should continue with the experiment." He suggested in a flirtatious manner.

Hermione looked up at him through heavily lidded eyes and said, "I would hate to interrupt our education." She allowed him to move her arms away from her body so that he could press up against her. "Please, do carry on, Draco." She purred just as the wizard placed his mouth on her bare shoulders.

"Oh I intend to, Princess." He answered while continuing his sensual exploration of her delicious skin with his lips and tongue. He was certainly grateful to the twin tricksters because this day turned out much better than it had started. He stopped thinking when he heard the brunette moan and she whispered for more. Yes, he thought, this really was a remarkable April Fool's Day.

~ooOoo~

The Great Hall

Professor Snape was busy trying to avoid the headmaster as the attention he was receiving made him uncomfortable; even more uncomfortable than having been changed into a woman. Those identical brats were going to serve detention in the dungeons with him for the rest of the year for this monumental mistake, he thought. With great relief, he felt the potion's effect ending and changing his body back to normal. He realized that Albus was still ogling him so he hastily made his way out of the hall all the time muttering about sexual harassment.

Fred and George's ears were still ringing from the lecture that Professor McGonagall had given them for the past half hour. They agreed that it was well worth it because the potion did exactly what it was supposed to do and it was sure to be another popular item at their store.

"Happy birthday, Gred." Exclaimed George.

"Happy birthday, Forge." His twin answered.

~ooOoo~

End Notes: This story was inspired by ObeliskX who asked for a gender swap chapter. I apologize that it's not exactly what you meant but it gave me a plot bunny for this month's prompt. So thank you very much for that!

I would also like to thank all those that have reviewed this story. It really does make my day to read them! A special thanks to Lalina92 who has reviewed each and every chapter; you are the best!