Hey, guys, This is SpellPiper2213 here with a Snape fanfiction! The summary explains the plot, so READ IT if you haven't already. Hope you enjoy!

Alone again, as always. Severus Snape was used to being alone now. Not that he cared much. As a rule, most non-Slytherin students didn't like him. Even in Slytherin, there were a few who didn't like him, Bellatrix Black in particular. Severus returned the dislike with a cool silence. Bellatrix was crazy, even for a Black. Still, with Halloween fast approaching, Snape

Severus carefully tapped out a few drops of salamander blood into the quietly bubbling cauldron. It was a complicated potion, and one wrong move would almost certainly end in disaster.

"Heya, Snivellus," a snide voice hissed, "you doing alright?"

"If you don't stop trying to distract me, Black, I will personally see that you go to the hospital wing," Severus said coldly without looking up. "Besides, you need to focus on your potion, unless you'd like to go to the hospital wing through your own mistake…?" Snape smiled nastily. Now that would be a sight to see; Sirius Black, sent to the hospital wing because of his own mistake. Unconsciously, Severus chuckled. He stirred the potion a few times counterclockwise before reaching for the armadillo bile and putting the proper amount in.

The potion instantly turned a violent shade of pink and began hissing and sparking violently. Severus looked into it, bewildered, before checking the armadillo bile. Yes, he had put the correct amount of the correct material into his potion, so why was it-

"Black!" Severus growled. "What did you do?"

Sirius looked up and, spotting Severus' sparking potion, edged away, eyes bulging. Severus had to look into his eyes only once to know that this was genuine fear, not some show.

"Potter!" Severus said frantically. "What did you-"

The potion exploded. Severus was sent flying backwards over three rows of desks before landing in a pile of spare books, which promptly collapsed on him. That triggered another pile of books, which thundered down on the partly buried and thoroughly bemused sixth-year. As he started pushing aside the pile of books that covered him, the rest of the class surrounded him like pigeons to a man with bread. Severus could hear some ugly snickering. Probably from the Marauders, he grumbled to himself. I'll get them for this, especially Potter.

"Are you okay, Severus?" Quentin Avery asked as he and Matthias Mulciber went to Help Severus out of the pile of books.

"You don't look so…" Mulciber began before he caught sight of Severus. "Good God, Severus, what the hell happened to you?"

"What do you mean?" Severus asked before hearing a general intake of breath from the class.

Oh, hell. This was going to be fun.

A few girls screamed. All the Marauders save Lupin burst out laughing. Severus could hear several of their Gryffindor friends joined in.

The sixth-year boy held a hand to his forehead. "Someone get me a-" He stopped as he look down at himself.

"You sure he'll be okay?"

"Yes, I'm sure, Mr. Black, otherwise I wouldn't be telling you, now, would I?"

"No, I guess you wouldn't, Madame Pomfrey."

"Is there any way to reverse the effect?"

A heavy sigh. "At the moment, no, I don't think so. Poor Severus will be stuck like this for a while."

Severus groaned and opened his eyes. The harsh white light immediately blinded him, so he shut his eyes again.

"He's awake!" Mulciber's voice squeaked excitedly. "I heard him groan!"

"If you continue babbling, Mulciber, I will hex you so bad that you'll never want to kiss a girl again," Severus rasped.

There was a chorus of cheers. It made Severus's head hurt so much that he reached for his wand. Immediately, the area he was in was deathly quiet.

"Better," the sixth-year said, lying back down.

"Are you feeling alright, Severus?" Poppy Pomfrey asked in a cautious tone of voice.

"No, I do not feel alright, Madame," Severus snapped. "My head hurts, my bones ache, and my chest feels as if it's-" Then he remembered why he was in the hospital wing. Severus swore vividly under his breath and risked opening his eyes to look down at himself. The normally very quick-minded Slytherin could only look down, gaping in horror

"No kidding," Regulus Black said somberly. "It was a good thing you were in the Potions classroom. Your body was reacting like crazy."

Severus looked up. "Did anyone see Potter slip something into my armadillo bile?" the Slytherin asked in a quivering voice.

Mulciber shook his head, but Avery said, "I think I saw him put something into it. I can't be sure, but I'd pay good money to say that he did do something."

Severus rolled out of the bed, grabbed his wand, took a step, and almost fell over. Fortunately, Madame Pomfrey and Regulus caught the sixth-year and pushed Severus back into the bed. Severus complied mutely, mind whirling.

"You'll stay here until I can leave," Madame Pomfrey said sternly, wagging a finger at the stupefied Slytherin, who nodded dumbly. With a flick of her wand, the Hogwarts nurse Summoned curtains from her office.

Regulus, Avery, and Mulciber took that as their cue to leave. They walked mutely down to the Slytherin Common Room, where the eyes of all followed them.

"Is it true, then?" a fourth-year girl asked. "Is Snape really a girl?"

The trio looked between themselves, then, with a noncommittal shrug, they all nodded.

Yep, even the greatest Potions Master of all time can go wrong! Unfortunately, this accident will ruin far more than his reputation as a fledgling Potions Master. What will happen next? That's for the next chapter to decide! Hope you enjoyed, and please R&R!