Hermione's grip remained tight around your body as she began walking down the corridor, her flats tapping against the cobblestone, "...Professor McGonagall's Transfiguration lessons are interesting, but she lacks a certain, shall we say, creativity?"
The frizzy-haired witch smirked mischievously to herself, ignoring your pitiful squirming as she carefully selected a less-traveled route back to the Gryffindor common room, "Sure, I could turn you into a teacup–and it'd serve you right–but what would be the fun in that?"
Another turn and you passed a study hall full of students with heads buried in books and scrolls, none of them remotely likely to notice your plight, "On the other hand, I took the liberty of looking up some less traditional spells, and I've learned a handful that would be delightful to test out on you..."
Peering out from Hermione's fingers as she swept you around another corner, you recognized the Grand Staircase with its ever-shifting flights of stairs. An icy chill swept through you–unlike the Slytherin dungeons that were hidden in Hogwarts' lower levels, it was no secret that the Gryffindor common room was behind the portrait of the Fat Lady, who suddenly came into view as Hermione mounted a flight of stairs.
The rather corpulent woman looked up from within her frame just as Hermione moved her hand behind her back, hiding you from view. The Fat Lady cleared her throat, "Password?"
Hermione answered "frogspawn" with a faux-nonchalance. Satisfied, the portrait swung open and your towering captor stepped over the threshold. A few Gryffindor students were milling about, but none of them bothered to look up as Hermione passed. In the absence of the famous Harry Potter, she had the advantage of being inconspicuously uninteresting.
Up the spiral staircase she went with your tiny, naked body still firmly in her grasp, until at last she reached the portal to her private room. Unlike the boys, Gryffindor girls each got their own private accommodations. Unfortunately for you, this meant you had lost nearly all hope of being discovered now that Hermione had secreted you away.
Once inside, Hermione shut the door behind herself and turned her attention back to you, opening her fist to get a good look at you as you sat on the seemingly vast palm of her hand. The evil glint in her eyes would've made you recoil, even at your former full height.
"Oh, Draco, pathetic little Draco... We're going to have so much fun."