I was cleaning up my computer, and I found my Sirius application for glitterverse. While it's not the most thought-provoking fic ever, here is my bio and writing sample from that.
Sirius Black, top student at Hogwarts and self-styled Greatest Wizard in the World, is the most mischievous students Hogwarts has put up with in quite some time. His insanity is encouraged by his best friends Peter Pettigrew and Remus Lupin, and his Ultimate Best Mate and Honorary Brother For Life, James Potter. While generally it's James who works out the mechanics of a prank, Remus who does the delicate spellwork, and Peter Obliviating any witnesses, it's Sirius' wild ideas and enthusiasm that get them all going in the first place.
Sirius is an Animagus, in the form of a huge black dog named Padfoot, which he, James, and Peter worked out some time Fifth Year to keep Remus company during his Werewolf transformations. It is his second greatest accomplishment thus far, topped only by single-handedly bringing eyeliner to Gryffindor Tower.
Sirius proclaims his bisexuality loudly and frequently to anyone who can't get their hands up to their ears in time, claiming that what he's got is too good to keep confined to a single gender. While he isn't nearly as experienced as he lets on (obviously, or he'd be dead), he's had enough on both sides to know that boys and girls are equally pleasing in their own ways.
And he invented glitter.
Well, all right, he didn't invent it. But he invented looking that good in it.
Sirius was bored, bored, bored. He glanced at the clock and noticed that there were still 25 minutes left of Transfiguration. He'd have to come up with some entertainment fast, or he'd succumb to an irreversible comatose state.
He sighed loudly and glanced hopefully in James' direction, but James hunched over his notes and pointedly ignored him. Sirius knew for a fact that this studiousness was an act, James Potter had never needed to take a note in his entire life. Unfortunately for Sirius, it seemed that James was still miffed that Sirius had borrowed his tightest flares that morning.
Not my fault mine have a huge rip in the crotch, bound to happen sooner or later, Sirius reasoned mentally. Nor is it my fault that I look better in the things than Jim does. To be expected, really.
Which still left Sirius noticeably fun-less. He was preparing to Charm Skye's quill ink invisible for a quick laugh, when McGonagall swept by him, and the heel of her sensible shoe peeking out from under her hem caught Sirius' attention.
His eyebrow quirked as an idea struck. Struggling to contain his glee silently, Sirius aimed his wand at the retreating shoes and whispered "Fulge!"
A quick glimmer was all the confirmation Sirius got that his spell had worked, and he squirmed in his seat for the rest of the class, dying for somebody to notice his prank.
"That will be all for today, class…" McGonagall was dismissing the class when Lily dropped her wand, and it rolled out into the aisle to clink against McGonagall's foot. She bent to retrieve it and stopped when her robes slid over her shoe.
Sirius struggled valiantly to keep from beaming with pride as she pulled her robes up another few inches to reveal her new pair of green metallic platforms.
He knew his expression of innocence was perfect, and it was only McGonagall's secret psychic Head of House powers that caused her glare to stop on him. She smiled thinly as she dismissed the class and asked Sirius to remain behind.
As he was heading towards the front of the room, James flashed him a thumbs up and a broad grin on his way out, and Sirius answered with a grin of his own, knowing he'd been forgiven for this morning's squabble.
"Mr. Black," McGonagall said crisply as he stood in front of her, "I hope you will be smiling as cheerfully when you are cleaning out parrot cages in detention. Quite proud of yourself, aren't you?"
"Anything for fashion," Sirius shrugged, flashing his most charming smile.