Harry was walking in the depths of the labyrinth that called Hogwarts Library, trying to find some sources that mentioned the particular twist his mental talents established itself. Under normal conditions, it would be Hermione that guided him in the maze to find the best sources, but it was ill-advised in the current case. It would be convenient if she learned about his talent, considering she had been already a subject to it. But his search was aborted when he came across a familiar figure, donning the blue robes of Ravenclaw. A figure that was frozen at the moment her eyes fell onto his figure. "Hello, Cho," Harry said in a casual tone, his juvenile crush long forgotten after all that happened recently.
"Harry," she answered, caught unprepared with the sudden meeting.
An understandable reaction, he thought, as their short relationship hadn't exactly been a simple affair. Cedric's death, Voldemort's return, Hermione's invasive presence… The fact that it was her friend Marietta that shattered under Umbridge's pressure and ratted them out had been the last drop, and Hermione's strategy to prevent leaks, which left her disfigured, worked well enough to turn their relationship into a bonfire.
With her frozen in front of him, conveniently immobile, Harry couldn't help but to send a mental probe, going through her surface thoughts. He had found anger, blaming him for being insensitive for her needs, but also regret that things had turned out that way, and remaining tatters of an initial attraction. However, he also noticed that the basis of the relationship wasn't too different from his, physical infuriation rather than an emotional connection.
He was in no way interested in rekindling the relationship he had with her, but that hadn't meant that he couldn't play a bit. He sent another probe in her mind, establishing a connection before starting to play with her emotions. Her attraction was intensified while her anger was doused, essentially giving a second wind to her feelings.
The effects were sharp enough to be noticed visually. She was still frozen in place, but the glow in her eyes came alive, looking at him with the beginnings of a desire. Perfect time to leave her alone, and pining after him. "Sorry, Cho, but I need to go," he said, already taking a step away from her.
"Wait!" she said, quite a bit louder than necessary, her voice echoing in the silence of the library. "Sorry," she added, blushing. "But can we talk for a bit."
"I would like to," Harry answered, doing his best to sound dismissive and insincere. "But I have things to do. Maybe later." With that, he walked away in rapid steps, leaving her behind to wallow in her resurrected crush…

With his library trip aborted earlier than he planned, Harry had found himself in an excess bit of time. He decided a training session was in order, as there was still a murderous dark lord following him and some extra spells in his repertoire wouldn't hurt. His destination, the room of requirements.
When he arrived, he cycled through a few spells, but decided to focus on transfiguration at first. He had noticed that there was a marked improvement in the quality of his transformations and conjurations, as the improvements in his mental focus allowing him to materialize his creations much quicker, and with less strain. He smirked as he conjured a wall, then blasted it to smithereens with an explosive curse. Another twirl, and chunks of brick collocated together, turning into a tiger that dashed forward. And just before it arrived at the target, Harry waved his wand one last time, and the creature turned into a metal spear, skewering the mannequin in the chest.
"Perfect," he murmured even as he struggled to breathe. The spell chain took quite a bit from him, and after the long session, he wasn't at the best of condition to begin with. Still, he was satisfied, because for the first time in his life, he felt like he had the ability to fight against the dangers other than disarming spells.
But before he could start on the next stage of his training, he was interrupted by the door. He turned towards it quickly, a banisher on his lips, but it was replaced by a smile he saw a familiar face, surrounded by luscious auburn hair. "Hi, Susan," he said. "What brought you here."
"Hi, Harry," she stammered, a blush climbing up her face, as she looked on the ground, frozen on the entrance.
"Come inside," Harry said, not wanting anyone else to see them in the room of requirements. It was lucky that Umbridge still thought that the room she had caught them was nothing more than an abandoned classroom, and less he was seen by anyone else, the better. She did so, closing the door behind, her eyes still on the ground, but he noticed that she was pushing her chest forward unconsciously, a move that would have gone unnoticed in many other girls in the same age, but Susan was a different class when it came to the subject of her chest. "So, what brought you here?" Harry asked, ignoring the obvious crush she was displaying for now. e
"I wanted…" she murmured before her voice betraying her. She took a breath, and repeated. "I wanted to train a bit."
"Perfect. Me too. We can practice together," Harry said cheerfully. A training partner would be useful for testing his new, transfiguration based combat style, and her obvious crush promised an interesting way to relax afterward. "How about some dueling to warm up."
"If you think it's a good idea," she stammered as she walked towards the middle of the room, but didn't look ready.
"We begin at three," Harry said. She looked at him with an obvious panic, but Harry started counting before she could say anything. A panicked expression appeared on her face as she shuffled for her wand, which was in an inner pocket of her robe, not exactly easy to reach. Harry counted rest of it quickly, and sent a disarming spell just as her fingers were wrapped around her wand. "Be more ready," he admonished, annoyed. He wasn't expecting her to fight good enough to stand against a death eater alone, but after giving so much of his free time training them, he was expecting something slightly better.
"Sorry, Harry," she whimpered, with a bit of fear, making him notice that he was looking at her without particularly trying to hide his annoyance.
"It's okay," he murmured, suppressing his desire to shout like a drill sergeant, not wanting to turn her into a nervous wreck. "Just try to keep your wand easily reachable. Even a second's delay could be deadly." She nodded, and he continued. "Another round, then."
This time, Susan managed to react on time, creating a shield charm in anticipation for an early assault. A good choice in normal conditions, but this time, Harry wanted to try a transfiguration based approach, to see how his new strategy stacked up in a duel.
It worked perfectly, but it was more about Susan's distracted state than the excellence of his techniques. The small creeping vine he conjured behind her as a distractive opening move went unnoticed, wrapping itself around her leg. Susan shrieked, trying to turn back, only to stumble. Harry sighed dismissively as he lowered his wand, watching the flexible arms that he modeled after Devil's Snare wrapped themselves around Susan's body.
The arm was wrapped tight around her body, when a sudden thought to leverage the situation in a particular way popped in Harry's mind. A barely noticeable wave of his wand later, the plant started wrapping itself around Susan faster, but in a very particular way. One particularly thick arm passed between her legs, 'accidentally' rubbing her sensitive spot, while two other thick green rope slipped inside her robe and wrapped themselves around her breasts over her blouse in a rough bondage approximation.
"I surrender," she exclaimed in an urgent panic, shocked by the sudden turn of events.
"Sure," Harry said, and waved his wand once more, and the flexible arms of the plant started to pull back, ignoring the temptation to leave her like that. But he made sure they pulled back slowly, maximizing the fraction on her skin. Her redness increased with each second, but the helpless moan that escaped her mouth that surprised him, but not much as it surprised, and mortified her, if her expression was any indicator. "Are you okay?" Harry asked in a fake panic, trying to convince her that he misunderstood the reason of her exclamation. He had a feeling she would be fainting in shame otherwise.
"Yes," she answered quickly, enthusiastically grabbing the rope Harry gave her, unaware of what had waited for her on the other side.
"Sorry," he said as he crouched next to her. "I wasn't trying to hurt. Where it hurt, your legs," he said, carelessly putting his arm on her inner thigh.
"N-no," she managed to stammer, caught surprised by his 'well-meaning but careless' touch. "My ankle," she said.
Harry didn't wait a second before slipping down her leg rapidly, but still touching, until his fingers were around her fake-injury, massaging softly. Meanwhile, he amused himself by watching a growing mixture of panic and arousal in her eyes. Her crush was obvious enough to be painful. "Any better?" he asked.
This time, there was a delay before her answer. Harry couldn't help but peek into her mind to see the reason for her delay, only to meet with an occlumency barrier. He pulled as quick as he came, cursing himself for his carelessness. She was the nephew of Amelia Bones, the head of Law Enforcement, of course she had the training to keep her mind safe. It was a weak barrier, nothing that would keep a concentrated assault out, but enough to make her aware of any probe. He was lucky that she was too distracted to notice in her current situation. "Yes," she murmured a second later, unaware of his attempt. "We can continue."
"As you wish," he said and pulled back. Pushing her with a mental command was tempting, but it would be too dangerous. However, Harry didn't lose his courage. She was still a shy girl with an obvious crush at him. He had plenty of materials to work with even without cheating. "Another round?" Susan nodded, and he called for another duel, which ended up equally predictably.
"It's not working," Harry said. "Your robes and clothes are too bulky, and they are cutting your mobility. We need some alternative for that."
"Like what," she said, but her voice dejected after several easy defeats.
"We can try some muggle clothing, maybe something they use for exercising" Harry said, preventing a dirty smirk from materializing taking most of his attention, one that would make her realize his ulterior motives. "Have you ever tried one."
"No, are they better," she said.
"Definitely," he answered. "Of course, stupid purebloods would never see their benefits through their outdated worldview," he added, trying to stack the deck towards his benefit before he showed her the clothes. With her obvious crush, he was betting on the fact that she would be willing to do quite a bit to prove that she wasn't one of those stuffy purebloods.
"It sounds good," she said.
Harry focused on his connection with the Room of Requirements, asking for a large screen that would hide her from his view while she changed, and a set of exercise clothing on the other side, yoga pants and a stretchy top. He would have liked to conjure underwear as well, but he had a feeling Susan would be less than receptive changing into the underwear he provided. The last part, he was a bit reluctant as it would hide her spectacular breasts, but sacrifices were required if he wanted to maintain his trusted status. In the same vein, the items were particularly tight or transparent. "The room was helpful enough to summon us the clothes behind the screen," he said. "Why don't you go and change, so that you can start to show me your true skills."
The flattery worked as intended, a new smile pushing through her gloom. "I will," she said as she walked behind the screen. A gasp left her mouth a second later, followed by a trembling question. "Harry, are you sure that's all."
"Show me," he said, and she stepped out, showing him the clothes he had summoned moments earlier. "Yes, they are," he said nonchalantly. "Why? Is there a problem?" he added, his tone hinting that any complaint would result in a radical drop in his opinion about her.
"N-no," she stammered. "I just wanted to make sure." She disappeared behind the screen once more, and a rustle of the fabric reached his ear. He conjured a chair to sit, emptily wishing that the screen was transparent so that he could he could watch her undress. The screen suddenly turned transparent, revealing Susan who was busy removing her robe, and he jumped up in panic, about to explain, realizing the room had followed his absent thoughts and changed the composition of the screen.
A few seconds later, he sat down, relaxed, after realizing Susan had given no indication of noticing the barrier was useless. "Good work, room," he murmured. Apparently, the transparency like a one-way mirror, allowing him to watch her while keeping her unaware of that particular fact.
Sometimes, magic was really magical, he thought. He leaned back, enjoying the view as Susan got rid of her clothing one by one. Her robe was first to go, pooling on the ground, followed by her blouse that revealed her breasts, looking sexy even constrained by her old-fashioned bra. He licked his lips as she unzipped her skirt, which shared the same fate with her robe before she started rolling her pantyhose down, displaying her voluptuous legs, shapely despite their relative thickness. Her plump ass showed itself even though the large coverage of her boring panties.
It was amusing to see her reaction as she pulled on the exercise clothes the room provided, on the conservative side for muggle standards, but in the magical side, they were obscene enough for a relatively sheltered girl like Susan to struggle with the decision to step out from her cover. Harry decided to help him a bit. "Is everything okay?"
"It is," she answered hurriedly, stopping to examine herself in favor of putting her shoes. Then, she put her own clothes to the small hanger he had summoned for that purpose, and turned towards the exit. She took a step towards the edge, and with another thought, Harry turned the separating screen to its earlier opaque state, not wanting to alert her about his entertainment trick.
"You look good," Harry said as she stepped out of the screen. A completely honest one, even, as the dark green top wrapped her body nicely, if looser than Harry would have preferred, and the lighter colored yoga pants displayed her long legs brilliantly.
"Thanks," she murmured, her smile getting wider despite her obvious shyness.
"Shall we start," he said, raising his wand even as the screen disappeared, leaving only the hanger behind. She nodded, raising her wand as well, and another duel started. Harry had an idea of how she fought, and even with her improved mobility and his self-restricted set of spells, it wasn't a challenge to down her in a few seconds. But Harry purposely held back, using spells that were difficult to counter but easier to avoid, forcing her to dance in the room while she dashed across the room, while her assets bouncing attractively with each step. He lamented the fact that she had a modicum of Occlumency ability, just enough to protect her from the messing with her. He would have liked to convince her to a bet where he could set the forfeits freely.
"I surrender," she cried, distracting him from the pleasurable daydream where her tits were wrapped around his shaft, trying to drown him with pleasure. He checked the scene where she was surrounded by three different conjured animal, each ready to pounce the moment she dropped her shield in favor of attacking.
"This one was much better," Harry said encouragingly, and interestingly enough, he didn't tell it that just to make it easier to get into her pants. With a better mobility, she was able to last considerably longer than what she could wearing a robe that continuously wrapped around her legs. "Are you ready for one more?"
"I don't know," she said between her breaths. "I'm starting to get exhausted."
"Come on, Sue," he said with a charming smile, which allowed her new nickname to go uncommented; but not unnoticed, told by her widening smile. "Enemies wouldn't stop fighting just because you are short on breath."
She looked him determinedly. "Alright," she said, before sending a surprise stunner towards him.
Harry chuckled even as he ducked, letting the spell fly overhead. "You're learning." A wave of his wand, and Susan had more important things than standing still in smug satisfaction, such as avoiding the flock of sparrows he conjured, despite the obvious exhaustiveness.
She was suitably distracted, allowing him to bring the duel to a sudden end, but instead, he focused on the tenuous connection he had with the room, and sent an order to modify her clothing as well. It was a wild shot, so he was pleasantly surprised her top tightened around her chest to display her assets better, not to mention getting transparent enough to display a hint of skin. A similar order, and her yoga pants got even thinner, turning her wholesome clothes into something a stripper would wear at the beginning of her show.
The only problem was her underwear, who rejected to change despite his serial orders, making him realize that it only worked for things that had been conjured by the room in the first place. Still, he was satisfied, as the sight of redheaded beauty in transparent clothes, fighting desperately to keep a flock of birds away was a sight to see.
Soon after, he ordered the room to fix her clothes back despite feeling reluctant, though he kept them a bit tighter, still completely opaque. She had managed to rid of the birds almost completely, and he wasn't willing to risk her noticing.
He let the duel last for another five minutes before capturing her arms with an animated rope, its end plucking her wand from her fingers before she could devise a spell to escape. Then, before she could even say anything, a piece of animated cloth jumped to her mouth jumped to her mouth, prevented her from speaking. He stood in front of her, with her body wrapped tighter than a Christmas gift. "I win," he murmured, letting a bit of darkness seep into his tone, looking at her eyes. He found a sudden fear, but also stirrings of a desire. Seducing her was going to be even easier than he first assumed, he realized, then dismissed the ropes and others, leaving her on her knees, panting in exhaustion.
"What," she murmured, caught surprised with the sudden change.
"I think it would be best if we call it for today," Harry said even as he asked the room to conjure the screen back on, along with a shower stall with semi-transparent glass sides.
"For today?" she asked, hopefully. "We can have another training session as well?"
"Only if you want to, of course," Harry said, trying to make it sound like a question rather than an order. At least a partial success, he guessed from her enthusiastic nodding. "Perfect, a partner would work swimmingly. Why don't you change and leave for today, then," he said.
"Umm, maybe we could walk together to the Great Hall," she suggested, failing miserably in trying to make it like a casual suggestion.
"No," he answered, and her hopes dried just as quick. "I would like to," Harry explained. "But Umbridge might start targeting you if we're seen together." She looked defiant. "Can you imagine the trouble it might create your aunt if she tells Fudge about seeing her niece with the-Boy-Who-Lies."
That managed to pop her bubble of defiance, but she was looking hopeful after understanding the reason for his rejection. "Okay, when do you want to have the next session," she asked. "How about Saturday, around eleven?"
"Sure," he said before starting to walk towards the new shower stall he had created while she disappeared behind the screen. That was, disappeared for a second before Harry turned it into a one-way mirror once more. He quickly undressed, then slipped into the shower stall, while watching her Susan strip until her underwear once more. Then, he turned the screen back its ordinary state, closed his shower stall, and started showering.
He acted like he hadn't noticed when a red blur peeked from the side of the screen, watching his blurred figure through the window, especially since he was still fully erect after the strip show he had just received, which put him in a very positive light. She did deserve a little treat for herself after all the unwilling show she had provided for him today…