Chapter 15

Harry let his weight to rest against the soft leather of his conjured seat as the screen flickered into life, giving him a vision of Susan as she had watched the door had slammed close loudly behind him, her face as red as her hair. During their last training session, he had left the room after spending some time in the jacuzzi while he was naked, much to Susan's shock. He focused, enjoying the details of the scene as Susan buried herself into the bubbling waters of the tub. A big mistake on her part, Harry reasoned, as the constant trembling of the bubbly water couldn't have helped to drive down her excitement even if hadn't enchanted it for that particular purpose.

And it was working flawlessly. She sent constant glances towards the door, each more alarmed than the last, trying to ascertain whether he was going to appear back in a sudden change of mind. A battle of fear and excitement covered her face, like she wasn't able to decide whether his return was good or bad. He was tempted to pull out his shaft to play with himself, to give the moment the treatment it deserved, but, after a brief consideration, he decided to keep it in his pants.

No need to spoil his appetite with an imitation when the main course was just minutes away.

Instead, he focused on the sight of Susan's arms, which started to move under the water. The bubbles hid most of what was going under the surface, but her growing excitement was a good clue about the destination of her hands. At first, her shoulders were barely moving, panic dominating her face. Her face wasn't free of excitement, but it paled against the thick fear on her face.

But the combined assault of time and pleasure worked wonders to ease her mood. Unaware that her every twitch was being immortalized by a magical recording device, her pleasure started to overcome her reticence. The first thing she lost was her determination to stay underwater.

Her shoulders cut through the surface of the water first, and with it, putting the first glimpses of her incredible bosom on display. Technically, the neck of the conservative one-piece she was wearing was high enough to prevent even a hint of cleavage, but another trick of his was ready to spoil the effect. Her swimsuit has an important flaw, more time it spent in direct contact with water, more transparent it became. And after spending several minutes, buried under the bubbling water, it had resulted in a delicious view of the topside of her breast, transparency of the fabric of making the scene even more erotic than sheer nakedness. o

To make things more fun, her eyes were shut as she tried to maximize her pleasure, making her miss the state of her clothes. Soon, she pushed herself back against the edge of the pool where the water was shallower. And she missed the significance of that detail with her eyes closed, leaving Harry free to enjoy the sight of her rosy areolas, barely muted by the permissive whiteness of her swimsuit. Her nipples were even more beautiful, pressing against the same traitorous fabric like they were trying to cut themselves free, an ultimately futile effort that nevertheless looked amazing.

His pants were getting tighter with every bounce of her breasts. It might not be the first time he was seeing them bounce, but it was the first time he witnessed their desire filled movement, rippling attractively with each repeat. Watching her grabbed by the throes of torturing passion was something interesting, especially when her passion that was thick enough to shock him.

For a moment, Harry lamented his decision to leave Susan alone in the room instead of hiding under his invisibility cloak. Even better, he could have waited until she was far too gone, then return, acting like he had just forgotten to pick up something, and come across her. He wondered how would she reacted to be caught as she leaned against the edge of the pool, her tits practically naked thanks to her transparent swimsuit, and her pleasure impossible to hide…

But he didn't let the thoughts of a missed opportunity to annoy him that much. After all, she was going to arrive in a few minutes, unaware of the velvet teeth of the trap that was about to close around her. Then, the redheaded figure on the screen let out a loud cry, pulling his attention back to the screen. He watched as she trembled in excitement as she sank deep into the water, looking even more erotic despite the bubbly water hiding her from his sight. He wondered how she was going to react after stepping out of the water, and seeing the state of her swimsuit…

But at that point, there was a knock on the door, leaving his curiosity unsated. But that was okay, as the original that awaited him on the other side was, without a doubt, much better. He stood up as he ordered the room to dispel both the screen and the chair. Right in time, as the door opened a second later, revealing the voluptuous figure he was waiting for, managing to shine through her conservative robe.

"Welcome, Susan," Harry, inviting her to walk in before turning his attention back to the training course he had set up, ignoring the thick blush that was spreading to her face, no doubt thinking about the last time she had seen him. His nakedness, in particular. His wand was in hand as he layered several spells over the obstacles, awakening them to swing around gently. He could have just ordered the room to do that, but casting the spells himself provided him a challenge for his charm abilities, especially on his wide-scale casting. While the last few days had been fun, he hadn't forgotten that he was in constant mortal danger, waiting for Voldemort's next attack.

But Susan walked to his side, giving him an excuse to ignore that mortal danger for another hour. He kept his eyes on the obstacle course, but watched Susan from the corner of his eye, caught by the differences in her attire, her robe in particular, tighter than her usual baggy one. Not enough to make a big difference, but an impressive progress nevertheless. "Harry, what's this?" she asked after a minute of silence.

"It's a muggle-style obstacle course," he started to explain, occasionally broken by the murmur of another spell.

"I see, but why? It looks too complicated to duel in it," she added, her confusion clear.

"It's not for dueling. We need to make sure adverse conditions will not prevent us from moving. We're going to do the course without any spell-casting."

"Is this really necessary," Susan asked, trying to keep her tone courteous, but Harry could sense the dismissal in her tone. "Maybe we should focus on some new attack spells instead."

" You never know when an extra step might come useful," Harry answered.

"I understand, but it seems simple," Susan said as she examined the lazily swinging balls, made of soft cloth. "Just running from one end to another, I could do that without a problem. But it's so … dirty…"

Harry didn't bother to hide his smirk, amused by the way Susan underestimated the challenge. Not too surprising, Harry surmised. She had been turning her nose at the course the moment he mentioned it being Muggle-style. She might not be a bigot, but like every magical Harry had met, she had a tendency to underestimate non-magical things due to her upbringing. Well, Harry was more than ready to leverage her blind spots for his benefit. "Well, if you're that confident, we can always try something different after you clear it in the first try," Harry said, intentionally

"Maybe I will," Susan answered, trying to look confident against the challenge, but her expression wasn't as sure as her expression slid towards the obstacle course. She was smart enough to realize that there must be a reason for his confidence, but she was too proud to pull back at that point.

As they said, pride before the fall.

"Excellent," he said, pointing at the small section separated by the screen. "Why don't you go and change, then we can start."

Susan sent a suspicious glare towards it, no doubt remembering the way her swimsuit had ended up after his departure. "Is this necessary? I should be able to clear it in my robes as well," she said.

"Whatever you prefer," Harry answered, dismissive on the outside, but his heart was laughing in amusement. He would be surprised if she could clear more than ten feet into the course with all the spells he layered in, but watching her fail would be considerably funnier another warning. And, ultimately, failure was the best teacher.

She sighed in dismay, realizing that she had just committed to a ridiculous challenge, but she was in too deep to pull back. "Let's do this," she murmured as she took her position on the beginning of the course, trying to psyche herself.

"And… Start," Harry called. Susan moved forward, but her pace strictly limited to walking speed, instead of at least jogging speed he had been expecting. But before he could open her mouth to call on her, she stepped on the mud, her flat shoes failing to find purchase in the slippery floor, and she hit the floor with a surprised cry. But not a painful one, much to her surprise if he was reading her expression correctly through the mud covering one of her cheeks. He had covered the ground with cushioning charms to prevent actual physical harm, not wanting her to stop early due to an unexpected injury.

"It's not as simple as it looks, isn't it," Harry said cheerfully as he waved his wand, vanishing the mud, simultaneously cleaning her face and removing the obstacle to allow her to stand up easier.

"No, it's not," she answered, sulking cutely. Harry looked at her pointedly, and after a moment's silence, she sighed in defeat. "Maybe there is merit in it as well," she admitted.

"Excellent. Now, it's my turn," he said before waving his wand once more, filling the mud pit to the brim. He dashed forward, clearing the first mud pit. Then he run through the tire track without slowing down, trying to make it as effortless as possible. The rest wasn't too difficult as well, but he chose to stumble and fall in the second mud pit. To make it even more amusing for her, he arranged it the exact time he was taunting her. "See, it's very simple-" he started, rest of his words devoured by the mud.

Susan's crystal laugh filled the room, but Harry took it in good humor. After all, it was the reaction he engineered. It would be useful going forward. More equal she felt, easier it would be to goad her towards the direction he wanted. "It's very simple," Susan repeated teasingly.

"You're laughing now, but we'll see how far you're going to go the second time."

"I'll show you," Susan said, trying to sound challenging, but her tone failed to support their message.

"I'm sure you will," Harry replied. "But wouldn't you like to change into something easier to move in," he said, pointing to his own military style boots and loose pants made from thick canvas. "I can't imagine how hard it waded through the slippery sludge in those flats."

Susan didn't look enthusiastic about it, but luckily for him, she was too shy to actually confront him about it, especially in a way that would end up with her explaining the reason. She nodded in defeat and turned to walk towards the makeshift changing room. Harry watched with great interest as Susan trekked towards her dressing area, the dance of her hips enchanting even through her bulky robe. He didn't bother to make the screen transparent this time, wanting to keep the end effect surprise. He was curious whether she would be able to pull off the military-inspired clothing he had selected for her.

She definitely could, Harry said in his mind as she stepped out of the cover, wearing a tight white shirt and camouflage shorts. The clothes, despite their shortness, wouldn't even hint sexiness on another woman, but on Susan, they looked spectacular. Even wrapped in a thick sports bra, her breasts were straining her shift, and her bountiful hips were not far behind, trying to escape from her shorts with each step. She wore protectors on her knees and elbows, but they were more visual than functional. They weren't actually needed with all the cushioning charms layered on the floor. Even the ugly, bulky boots she was wearing was somehow worked well with her bright red hair, gathered in a simple ponytail. All she needed was a couple of guns, and she was ready to star in an action movie.

She walked towards him, the blush on her face suggesting that she still wasn't entirely comfortable with the amount of skin she was showing, but after the last week's swimsuit, she couldn't exactly argue against her current ensemble. "You look striking," Harry said as he dragged his gaze over her curves, not long enough to be creepy, but long enough to convey that he was impressed.

She blushed further, her crush convenient as always. "Thanks," she managed to whisper, too low for him to hear, forcing him to read her lips.

"Ready?" Harry asked. Susan just nodded shakily, still remembering her last failure. Then, she launched her second try, her pace only slightly faster than walking once again. Without her robes pulling her behind, clearing the first mud pit was very easy, so was the tires. "Very good," Harry interjected. "But you might consider moving faster than a snail's pace." She looked at him shockedly after his rebuke, but a teasing smile was on his face to take the sting off.

"I'm doing well enough," she said as she passed through the second mud pit, but she nevertheless quickened her pace after pressing the smooth floor, and she was jogging when she entered the pool of water, an action that made her breasts tumble in an impressive dance, the sports bra she was wearing underneath failing to restrict their movement, but distracted by her desire to complete the course, she missed that important development.

"Cold," she exclaimed in protest, but missed the reaction of her own body to the temperature, her nipples hardening enough to ignore her bra, creating two nice bumps on her already straining shirt. And even better, that was just the start. At the middle of the pool, the water was deep enough to reach her waist. As she cut through the water with great speed, an action that displaced quite a bit of water, and a considerable portion of it ended up soaking on her shirt and her bra, making them stick onto her chest. Luckily, the top part was relatively dry, so a glance wasn't enough for her to notice it.

Harry watched with great pleasure as Susan dashed out of the pool, her tits dancing with each step, a view that was much better with her wet shirt. If there was a girl in Hogwarts that would win a wet t-shirt contest effortlessly, it was Susan. She only needed to visit Vegas once to end up incredibly rich.

Once again, she failed to notice the state of her dress, despite the slowly spreading wetness, her attention stolen by the formidable barrier of the next obstacle; several spaced logs hovering in the air, too far away from each other to just step across, requiring her to jump, another mud pit underneath, waiting for a mistake to embrace her. She made first two jumps without fail, but the third one she slipped, and found herself planted in the mud, chest first.

"Nice work," Harry said, walking closer as she tried to pull herself from the mud. She was sitting in the middle of the mud when he arrived. He leaned forward and presented his hand to her. "All that mud is adding to your flare," he said even as she grabbed his hand, a teasing smile on his face.

"We'll see how you will deal with it," Susan said playfully.

"Too bad that I won't end up in the mud like you," Harry said even as he leaned further, intentionally unbalancing himself to give Susan the opportunity to act.

He started helping her to stand up, thinking that Susan wasn't going to take the opportunity when a mischievous smirk spread on her face. "Are you sure?" she asked, and suddenly pulled Harry. He let her succeed, and fell into the mud with a comical yelp. "You were saying," Susan managed to say between laughs.

"Oh you didn't," Harry murmured, looking at Susan with a flat expression. Her laughter was smothered by self-awareness, and she blushed, thinking she had done something wrong. He waited until she was about to say something, then swung his hand. His hand, that was covered with mud, which flew right onto her face.

She blinked in shock for a moment before smirking. "Is this how we're going to play?" she said even as she raised her hand, filled brim with ammunition, and she threw that on his chest. Harry retaliated, and things devolved into a childish struggle.

But Harry had no intention of actually keeping things childish, not when Susan, dressed as an adventurer, covered with an alluring amount of mud -as he was ordering the room to quietly vanish the excess mud on their body to maintain the sexiness of the scene-, uncovered parts of her clothes sticking to her body to reveal her skin underneath. Between two throws, he reached for his shirt and pulled it off, displaying his muscular torso for her viewing pleasure.

She stuttered in shock, not expecting the sudden display, and Harry used the opportunity to send another swab of liquid earth at her. "Harry," she exclaimed in shock, and Harry used her distraction to walk closer to her, and before she could reach, he was standing in front of her, the expression on her face telling him that she was aware of the sudden shift in the atmosphere…