A/N: This is a SLASH. Don't like, don't read. It's also rated M for a reason.
Beta read by the wonderful and lovely, Kaeldra Rhiannon
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Everyone's eyes went wide. Harry exchanged looks with Hermione, thinking perhaps that he had overlooked something and would find her sitting there on her stool, completely understanding. Harry was shocked to see that Hermione's eyes were just as wide as his, if not a little more confused.
Snape…wanted them to have sex?
"I said change your sex, you idiot!" Snape snapped at Neville for asking the question that was on everyone's mind. "Ten points from Gryffindor for not listening."
A collective sigh of relief went through the classroom. A few 'thank gods' were said on the Gryffindor side while on the Slytherin side a few were still making sexual gestures with their hands.
Snape pinched the bridge of his nose in frustration, muttering darkly. "Sexus abeo," He began slowly, glaring down any more snickering, "Is a potion often used by Aurors to disguise their appearance. Unlike the Polyjuice Potion, which can only change one's appearance off of another, sexus abeo gives an accurate description of how a person might look if they were born a different sex. You have one hour to brew this potion. In the meantime, I want no giggling or innuendos. If I so much see a smirk upon your lips…"
He left the threat unsaid, allowing their imaginations to take over.
Immediately they jumped onto their new assignments. The air was filled with the noises of clanking glass, knives cutting and soft muttering.
Harry was pleased to find that he did not find this potion immensely hard and was, in fact, confident to mix it without any problem. With exchanged glances to Ron, he too silently agreed that this potion was easy. Even Neville seemed to be at ease.
Only Hermione frowned.
"Hey," Harry whispered, bumping his elbow against hers. "What's wrong?"
Hermione looked at Snape before answering. The potions master was busy correcting homework, so she turned back to him and whispered: "Don't you find this potion a bit odd?"
Harry blinked. It's a potion, they were in potions class. What was so odd about it?
"It's too easy," Hermione said to his confused face. "Even more, although Aurors do use this potion to disguise themselves, sexus abeo is mainly used as a party trick. It's a pointless potion. Why is Snape teaching us this?"
"What's that muggle saying?" Ron hissed from the side. "Don't eat a horse from the mouth?"
Harry snickered into his cauldron and Hermione rolled her eyes before correcting him, "It's, don't look a gift horse in the mouth."
"Oh yeah, that makes so much more sense," Ron said dryly as he poured his cut liver into his own cauldron. "The whole point is, don't complain! I might actually get to finish this potion without your help!"
"Doesn't it make you suspicious?" Hermione said this more to Harry now.
Harry shrugged. "Suspicious, maybe. But not suspicious enough to care. C'mon, Hermione!" He moaned as he saw her expression, "I mean, so Snape is teaching us an easy, pointless potion. According to the book, it wears off after two hours. What's the big deal?"
Hermione sighed. "I guess you're right. Still-"
"Ten points from Gryffindor, Miss Granger," Snape sneered at them from his desk. "Keep your attention on your potion."
Hermione blushed and ducked her head, Harry and Ron following suit.
In truth, Hermione planted the seed of doubt in Harry's mind. Perhaps Snape had them make this potion because he was tired today and didn't feel like cleaning up after any messes. Maybe the academic structure changed. Even if Snape was tired, he still wouldn't have them make such an easy potion- he would instead assign them twenty inches worth of writing. Even if the academic structure did change, a potion like this would've been reserved for first years, not sixth years.
Something was up.
After an hour of brewing, the potion was ready. Bright yellow liquid bubbled happily in their cauldrons and from the looks of it, everyone did their potion right. Even Neville.
"Now," Snape began, throwing them all dark glares, "If you brewed this potion correctly, your appearance will take on either male or female. But if you haven't-" he pointedly looked at Neville, "You'll become a hermaphrodite for the next two hours."
Neville wasn't the only one who shivered at that statement. Even though everyone had enough confidence they brewed their potion correctly, the fear of being a non-sex being was still there.
If you become a hermaphrodite, you fail today's class. Simple as that.
With some reluctance, everyone swallowed a vial of the yellow brew.
Immediately there were gasps. Not from the sudden appearance of friends turning into women or men, but from the sensation of suddenly growing breasts and penises. Once the shock wore off, everyone burst into laughter.
Hermione's hair had gotten shorter, though hadn't loss any of its bushiness, looking like a curled mess on top of her head. Her jaw was more defined, finishing off with a cleft chin. She had also gotten taller, and her shoulders broader.
Ron, however, morphed into Ginny. He kept his height even in his female form, but beyond that looked like his sister's twin.
Harry looked around the room. Seamus had turned into a rather pretty girl version of himself, prompting female-Dean to ask if he had any sisters at home. Draco Malfoy was currently entranced by the fact that he had grown breasts. Crabbe and Goyle, to Harry's amusement, were quite ugly-looking girls.
While Harry gawked at his two best friends, they gawked back. "Hermione, you kinda look like your dad," Harry giggled, wincing at the sound of a high female voice coming from his throat. "Ron, you look like Ginny."
"Harry," Hermione spoke, her voice deep and very male, "You look like your mum."
Harry stiffened at this. "Really?"
Ron/Ginny nodded wildly at this while Hermione pulled out a small hand mirror and shoved it towards Harry.
His mouth dropped. He looked exactly like his mother. Red flowing hair spilled from atop of his head and he tugged on the locks. His eyes were still green but they seemed to stand out more against his mother's pale skin and red hair. His glasses were still on, but that didn't matter.
Hesitantly, Harry pushed his red bangs aside. He still had his scar.
He sighed. He was never going to get rid of that, was he?
"Harry…" breathed female Neville, whose hair was just as bushy as Hermione's, "You're…" He trailed off, cheeks blushing.
"I'm what?"
"You're hot!" Ginny/Ron elbowed him, laughing. "No wonder your dad married your mum!"
Harry could feel himself blushing. He didn't want to hear this! "Okay, stop it. It's creepy."
Ginny/Ron leaned over and whispered, "Neville and I aren't the only ones who think so. Snape has been staring at you this whole time."
Harry snapped his head up. And, true to Ron's words, he saw Snape staring at him. The Potions Master rested his chin on his folded hands, looking at Harry with an expression he couldn't begin to identify. They locked gazes for a brief second and Harry, suddenly feeling very self-conscious, turned away. Snape did not.
Harry was relieved when it was finally time to leave. There was still much laughter as the sex-changed students walked out. As soon as they were out of the classroom, some boys started playing with their newfound breasts and the girls walked awkwardly due to the dangling organ between their legs.
Harry could still feel Snape's gaze upon him as he left.
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A/N: So lots of innuendo in the future. Review please.