Unexpected Changes; a fan fic by Siriusly Serious

Summary: Sirius Black screws up a potion in class, and is accidentally transformed into... A girl?! Wackiness follows, not to mention numerous relationships. Rated for language, and future slash. Based in MWPP's sixth year.

Disclaimer: Since I forgot this in first chappie, here it goes... I don't own any of JK Rowling's characters, no matter how much I wish I did because then I'd have Sirius locked up in my basement in a nice wittle dog collar. Yes, I am fully aware that I'm a pervert, ty very much, now on with the fic!

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Chapter 2

Soon after Sirius' little temper tantrum, the other three Marauders trudged in. "Hey mate," James greeted pleasantly; apparently he had forgotten what had transpired in Potions. Sirius only snorted in reply, and James couldn't help the blink of confusion that was followed by a reproachful frown. "Merlin, what crawled up your arse and died?" James grumbled.

"Oh, I dunno... Maybe that potion I made in class today? After all, none of my friends would bother helping me." He glared, growling when Peter asked how a potion could crawl up someone's rear.

James just shrugged. "It was your own fault," Came the quiet, yet logical voice of Remus, who was busying himself with his Transfiguration work. "If you had bothered to pay attention in class instead of trying to stare up Alexis' skirt and snapping at your cousins you might not have made a mess of your work."

Sirius scowled over at Remus, though the boy did have a point. Not that he would ever admit it. Still, it didn't brighten his mood at all. "I do think it was kinda cruel of her to say you have to drink it though... Maybe she was joking?" James asked, sounding somewhat guilty for ignoring his friend's pleas for help.

"That woman doesn't know how to smile, let alone joke." He grumbled darkly. James pouted slightly; feeling guiltier than earlier while Remus just frowned at a piece of parchment, and Peter just stared at the pair of them with a blank expression on his face. Worthless gits, don't even know when a bloke is feeling down.

James finally broke the silence. "I've got a plan that'll cheer you up, mate." He said triumphantly, a look in his eyes that dared Sirius to say otherwise. He snorted again, but James didn't appear to have heard him, since he was zooming up the staircase that led to the boy's dorm.

"Wonder what he's up to..." Remus said idly, his eyes still glued to his paper as he scratched out a line. Sirius rolled his eyes, thinking that nothing he could be up to in the dorm would make up for his earlier transgression when James came running back down the stairs, a paper bag in one hand. With the other he grabbed Sirius by the forearm and started tugging him towards the potrait hole, not waiting for the others to follow. "Come on you idiot, I saw Snape in the library earlier. If we hurry we can still catch him!"

Sirius blinked, looking suspiciously at the bag as he followed after him. He could've sworn he heard it buzzing when he recalled something James had said a week ago.

"I snagged a couple of the buggers in Care of Magical Creatures." He had said, showing him a small insect that looked like a bee with a stinger that was at least half its body length, and was a shocking electric blue. It had been petrified, which he was glad of. He didn't fancy getting stung. "They're called Billywigs, from Australia I think. Anyway, you should see what these things do when they sting ya, its awesome..." He said, trailing off when he heard the sound feet walking up the stairs. He grabbed the bug and shoved it into a bag just when Moony walked in.

A wicked grin formed on Sirius' face as he hurried to keep up with James. This was going to be an excellent way to let out his frustration.

...

Author's Notes: Ack, sorry it took so long to update. I've been busy with another story, actually. I'm working on it with a friend, and we've got the first chappie done already but I'm not putting it up until we've gotten a little further along. It'll appeal to any of you Sirius/Severus fans out there, though.

Anyway, next chapter will have Sirius and James attacking Sev in the library, and such. Sirius won't be turning into a chick until at least chapter four, sorry. But this'll be important in the story, so don't worry. I'm not just going off on a whim and rambling, though it is wicked tempting...

Vicky: Thanks hun. Mucho inspirational! )

Hannah: Yay! Thanks for the review! And I hope this is long enough for you, and if not... Die, or something. Eh, I know, my spelling sucks ass... Thank you who ever invented Microsftword! Lmao, I know! James' mom is a royal bitch, but so funny.

Sirius Fan: Thanks! Heh, I always thought I was pretty crappy at writing, but then again... What do I know? / Eh, I know that they were wicked smart and stuff, but no one's great at everything...Right? Plus I've always thought most Gryffindors were rubbish at Potions. Call me biest, I guess. I also wanted Sirius to mess it up on his own, I couldn't think of a way to do this right if someone had just slipped the potion in his drink. Ah well...