The Restricted Section of Hogwarts Library was a labyrinth of shadows and secrets, its air thick with the musty scent of ancient parchment and forbidden knowledge. Dimly lit by flickering candlelight that seemed to dance with a life of its own, the towering shelves loomed over Harry Potter as he crept through the narrow aisles. His heart thudded in his chest, not just from the thrill of breaking rules, but from the delicious anticipation of what he was about to do. A prank—oh, but not just any prank. This was personal. This was for every sneer, every insult, every time Draco Malfoy had strutted through the halls like he owned the bloody castle.
Harry’s invisibility cloak hung loosely over his shoulders, the fabric whispering against the stone floor as he moved. He’d slipped past Madam Pince’s hawk-like gaze an hour ago, waiting until the library was deserted before venturing into this forbidden domain. His fingers brushed against the spines of ancient tomes, each title more ominous than the last—*Hexes for the Heartless*, *Curses of the Damned*—until his eyes caught on a particularly weathered grimoire tucked into a shadowy corner. Its leather cover was cracked, embossed with curling runes that seemed to pulse faintly under his touch. *Enchantments of Alteration*, the title read in faded gold lettering.
“Perfect,” Harry muttered to himself, a wicked grin spreading across his face as he tugged the book free. Dust billowed into the air, and he stifled a cough, flipping through the brittle pages with eager fingers. Spells for changing hair color, spells for growing claws, and then—there it was. *Forma Mutatio Genere*. A spell to temporarily alter one’s physical attributes to mimic the opposite gender. The description was vague, written in an archaic script that hinted at “temporary shifts in form for purposes of disguise or jest.” Harry’s grin widened. Oh, this was better than anything he’d imagined. Draco Malfoy, the prissy prince of Slytherin, with a body he’d never expect. The mental image alone was enough to make Harry snort under his breath.
He tucked the grimoire under his arm, his mind racing with plans as he slipped out of the Restricted Section and made his way toward the Slytherin dungeons. He knew Draco’s habits—late-night strolls through the corridors, pretending to patrol as a prefect when really he was just looking for someone to torment. Harry’s pulse quickened as he spotted a flash of pale blond hair near the dungeon entrance, the unmistakable swagger of Malfoy’s stride cutting through the dimly lit hall.
“Potter,” Draco drawled as Harry let the invisibility cloak slip off just enough to reveal himself, stepping into the flickering torchlight. “Sneaking around after hours, are we? Should’ve known a Gryffindor couldn’t resist playing the hero—or the fool.”
Harry smirked, leaning casually against the stone wall, the grimoire hidden behind his back. “And you’re out here playing the big bad prefect, Malfoy. What’s the matter? Couldn’t find anyone else to bore to death with your superiority complex?”
Draco’s pale eyes narrowed, his lips curling into a sneer as he took a step closer. “Careful, Scarhead. I could have you in detention faster than you can say ‘mudblood.’ Or are you looking for a different kind of punishment tonight?”
The taunt hung in the air, laced with a venom that made Harry’s blood boil—and, if he was honest, sent a thrill down his spine. But he kept his cool, his smirk never wavering as he shifted his weight, wand slipping into his hand with practiced ease. “Oh, I’ve got something much better in mind for you, Malfoy. A little... transformation, shall we say.”
Draco arched a perfectly manicured brow, crossing his arms over his chest. “What are you on about, Potter? If you’ve got some pathetic prank up your sleeve, I’ll have you expelled before you can blink.”
“Promises, promises,” Harry teased, his voice low and mocking as he raised his wand, the incantation already on his lips. He’d memorized it in the library, the strange, lilting words rolling off his tongue with a surprising ease. “*Forma Mutatio Genere!*”
A burst of shimmering light erupted from the tip of his wand, striking Draco square in the chest before he could even react. The Slytherin stumbled back with a startled yelp, his hands flying to his torso as the magic took hold. Harry watched, wide-eyed and barely containing a laugh, as Draco’s usually flat, angular frame began to... shift. His chest rounded out, straining against the fabric of his pristine white shirt, buttons popping with an audible *snap*. Within moments, Draco Malfoy—sneering, insufferable Draco Malfoy—had a pair of curves that would’ve made even Lavender Brown jealous.
“What the—?!” Draco’s voice shot up an octave, his hands frantically pawing at his new assets as his pale face flushed a furious crimson. “Potter, what in Merlin’s name have you DONE?!”
Harry couldn’t hold it in any longer. He doubled over, clutching his sides as laughter spilled out of him, echoing off the dungeon walls. “Oh, bloody hell, Malfoy, you should see your face! Or—ha!—maybe you should check a mirror. Those are... impressive.”
Draco’s eyes blazed with a mix of mortification and rage as he took a menacing step forward, though the effect was somewhat diminished by the way his shirt strained awkwardly over his transformed chest. “Reverse this, Potter, or I swear I’ll hex you into next week! How dare you—how DARE you do this to me?!”
“Relax, Malfoy,” Harry managed between snickers, wiping a tear from his eye as he straightened up. “It’s temporary. Probably. I mean, I think it is. But come on, you’ve got to admit, it’s a good look on you. Maybe you’ll finally understand what it’s like to have a bit of... weight to throw around.”
Draco’s sneer returned, though it was undercut by the way his hands kept hovering over his chest, as if unsure whether to cover up or strike Harry down. “You’re a dead man, Potter. Dead. I don’t care if this wears off in an hour or a day—I’m going to make you regret this. And trust me, I’ve got ways of making you squirm that don’t involve childish spells.”
Harry raised an eyebrow, the laughter fading into a sly, challenging grin as he took a step closer, the tension between them crackling like a live wire. “Is that a threat, Malfoy? Or are you just trying to distract me from how... distracting you look right now?”
Draco’s flush deepened, but his gaze didn’t waver, sharp and cutting as ever. “Keep talking, Potter. See how long that smirk lasts when I’m through with you.”
Harry’s heart raced, the air between them thick with something more than just rivalry. He’d meant this as a prank, a way to knock Draco down a peg, but now, standing here in the dim dungeon light with Malfoy’s furious, flustered face inches from his own, he couldn’t help but wonder if he’d just opened a door he wasn’t entirely prepared to walk through. Not yet, anyway.
“Looking forward to it,” Harry shot back, his voice low and teasing, before he turned on his heel and slipped the invisibility cloak back over himself, disappearing into the shadows. Behind him, Draco’s outraged sputters echoed down the corridor, mingling with the faint sound of Harry’s stifled laughter.
This was only the beginning.
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