And, apparently, one that would soon be his...
It beggared belief, even as the idea excited him beyond measure, beyond any fantasy he might have had.
Harry watched from just inside the Library door as Lilith crept closer and closer. For a moment, he wondered how she could claim to be 'invisible' if he could see the succubus plain as day, and worried she would be caught.
Especially when the blonde girl snorted in her sleep and shifted, causing Harry's breath to catch in his throat and Lilith to freeze mid-step.
But the girl merely resumed her soft breathing, so Lilith slowly put her left foot down and continued padding on until she was just a few feet away.
Harry's erection sprung back to life from its half-mast when the pink-haired creature turned a sultry look over her shoulder and raised a single finger to her lips in the universal sign for 'be quiet'. A scant second later, she was shaking her head.
The teenaged wizard watched, amazed, as rose-colored dust fell from her hair down over the succubus' shoulders, which was then wafted forward and around the girl by a few quiet, slow flaps of the creature's short wings.
He continued to stare as Lilith stepped to the side, all the way to a table on the side of the section next to the door where he was standing, and jumped slightly to sit on the edge. She raised a hand to gesture, "Go ahead, Master. She'll be ready for you in... about a minute."
Harry gulped. "A- A minute?" he hissed, "But she's... I'm not sure about this."
Lilith's bright blue eyes rolled, clearly visible even in the moonlight streaming in through the half-opened curtains. "Yes, about a minute. Two, tops. Believe me, though, at the end of two, she'll be begging. And what's to be sure of? You want to get laid, right? She wants it, too. From you. I'm just giving her a little... shot of courage, so to speak."
Harry swallowed, steeled his courage, then started walking, padding forward as quietly as he could. Only then did he become cognizant that his own clothes were left back in the Room of Requirement, along with his wand and the knife. Yet again, he was defenseless!
He was still about eight paces from the teenaged girl, suddenly frozen in fear and nerves.
She was not someone he'd ever actually conversed with, not once. Someone he'd admired from afar for her physical beauty, but never even heard her speak.
That is, until a quiet, groaning voice stole across the otherwise silent library, "N- No, not... not there... That's... dirty..."
Harry's eyes, as he processed the statement, apparently made while entirely unconscious, widened. They continued as the girl's left hand (he had not noticed she was a southpaw) dropped a quill onto the table to slip beneath it, and run the tips of her fingers gently up the inside of her left thigh.
Then her hips shifted forward, back, and forward again. "Mm... not... well... if... if it's you..."
Harry gulped and swallowed, then cast a nervous glance back at Lilith.
She grinned, gesturing him on once more, but said nothing.
He swallowed past the lump again - it was getting more painful - before taking a few more cautious steps forward.
"Harry," she moaned, then her eyes drifted open as he froze.
But the blonde girl did not look at him.
Instead, she glanced, bleary-eyed around the library, eyes passing directly over him and Lilith both, before whispering, "Merlin's rock-hard cock I'm horny..."
Then she shrugged violently, pulling down her robe, before slipping off the vest beneath that and immediately, hurriedly struggled to undo each button from her white shirt.
Once that was removed - Harry noticed she kept the silver and green tie, leaving it to hang over her forest-green bra - the girl stood from the chair with a scrape of wood on the smooth wooden floor, then unceremoniously shoved her skirt and panties down to her ankles in one smooth motion.
She hit the chair again, panting, and immediately jammed her left hand between her legs, while her right rose to cup her right breast, kneading violently through the bra.
"F- Finally," she moaned, panting even as her hands moved faster and faster, in time with her rapid breathing.
"Now, Master," Harry jumped when Lilith's whisper sounded just below and behind his right ear, "you are visible. If you make yourself known, she's yours. For the night, at least. If you try and make it good for her, it likely won't be the last time. If you just take care of your own needs... it may or may not. She wants you badly."
Before Harry could speak or make another motion, the blonde girl moaned again, louder, "Yes, Harry... I know we're from opposite Houses, but I want you... You green-eyed stud! Take me!"
Harry swallowed, then took three more steps as the girl furiously worked herself.
He took a minute, then, just to admire the frequent object of his lust.
For she was, he felt, worthy of admiration. As tall as he was to the inch (though admittedly that wasn't saying much), the girl's long, golden-blonde hair fell to her waist, almost ruler-straight, usually held back by a Slytherin-green hairband or long barrette. She was thin, but not to the point of being gaunt, with legs that seemed to take up half of her total height, those more muscular than the rest of her. The face was angular, with a pointed chin and almost Romanesque nose, her eyes, he knew, were a green much darker than his own, almost brown.
Her chest, even clad by the emerald bra, was (according to Harry's, and the other fifth-year boys in Gryffindor's estimation) the third largest and possibly the best-shaped in the year, and in the top ten for the entire school. Her hips, though it was hard to tell from the side, he could see were well-formed with only the hint of a hip-bone showing as she jerked in tiny motions backward and forward on the chair.