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Unread 07-20-2018   #1
madbeaver
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Expanding Horizons


Summary: a collection of short snips centred around Hermione and Harry and their experiments with body changing magic.

This is a collaborated work with End of Line (user on a diffrent forum), various art work by me unless credited otherwise. Keep in mind, there will be uncensored NSFW images in this thread.

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Unread 07-20-2018   #2
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Expanding Horizons

The Beginning

Hermione eased her way into the classroom, a book clutched tightly in her hands. She’d found it in grimmauld place over the summer while visiting harry.

Alone briefly in the library, she’d picked the book up randomly, only realising what it was about when she saw the illustrations. At first, the images inside had shocked her, but her surprise quickly gave way to arousal. Awakening a need she’d never fully acknowledged.

She spent the rest of her summer reading the book and coming to terms with its contents and now she was at Hogwarts she could try it out.

There were hundreds of spells, each one more elaborate than the last. For now, she planned to use one of the simpler spells as a test.

First, of course, she needed to clean the room. She wasn’t as good as some of the teachers, but a bit of work with a levitation spell and a couple of cleaning charms soon had all the old desks moved back to give her some space and the floor cleaned.

Kicking off her shoes, she sat on the floor, her legs tucked beneath her. Hermione couldn’t help but picture her classmates sitting at the desks, watching everything she was about to do. The thought made her breath catch, her nipples hardening in arousal.

Giggling quietly to herself, she pushed the thought away for later and removed her jumper and tie, leaving her in just her blouse, skirt and tights. opening the book to her chosen spell and readied her wand.

She briefly considered taking her top off, but quickly decided it would be more fun with it on.

Focusing on what she wanted, she cast the spell. Her wand lit with a soft green glow and a pleasant warmth spread across her chest.

The heat built up in nipples, which were so hard it hurt and clearly visible through her blouse. Then her bra started to feel tight, the fabric pressing against her flesh.

Biting her lip to silence a moan, she looked down at her breasts. As she watched, they started to push forward, their outline becoming more defined as they grew.

As they grew, she squeezed her thighs together, trying to ignore the growing wetness as she needed to concentrate on the spell.

"Oh ... oh, it feels ... good!" she moaned. They continued to swell in small bursts. Her blouse slowly started to fill, the fabric pulling taut across her breasts.

Her bra straps were digging into her back, she could clearly see the outline of her breasts overflowing the cups. "I'm the same size as Susan!" she thought. As her blouse began to un-tuck itself from the front of her skirt.

Large gaps were visible between the buttons and her something was starting to creak. She squirmed as the delicious, pulling heaviness increased. With a quiet rip, the fabric joining the cups of bra gave way, her breasts surging forward into the blouse, threatening to pop the buttons from her blouse.

She couldn't resist the feeling anymore and she cupped a breast with her free and began squeezing and rolling it beneath her top. Her breathing was heavy as she felt her flesh push against her palm.

They're so full and heavy. The feel of the warm cotton material rubbing against her swollen nipples excited her even more, and she arched her back in sexual ecstasy. Katie and Anna couldn't believe what they were seeing.

It was getting hard to breath and She grunted as another growth spurt hit. Throwing her shoulders back she pushed her chest forward. Come, on!

With loud snap, the middle two buttons tore away, shooting across the room. The sound alone was almost enough to push her over the edge and she crushed her thighs together in an effort to focus on the spell.

Screwing her eyes shut, Hermione knew it was no use, nothing was going to stop what was coming. She could feel it building, her sex throbbing with every growth-thud, thud, thud-

Orgasm hit her like a punch, she shuddered and moaned softly. Her eyes flew open as the last of the buttons gave way and her grip on the spell failed.

Panting, she tried to gather her thoughts.

“Okay,” she muttered, her voice thick with arousal, “I might have overdone it.”

Shrugging her shoulders, she let the ruined remains of her shirt fall away, watching as the movement caused her breasts to jiggle.

They weren’t just big, they were huge, massive even. Yet despite that, they remained firm and perky, capped by her pink nipples. It was probably only because of the magic that she could still move despite the weight. Biting her lip, Hermione ran a hand over their surface, gasping at the sensation.

Then again, the spell wasn’t permanent so why shouldn’t she enjoy herself? She ran a hand over her breast again

There was a quiet knock at door. “Hermione, you in here?”

“Yes, you can come in Harry!” As door opened, she smirked at his startled gasp. “Close the door Harry … and make sure you lock it.”

Maybe she should see what else that spell could work on.



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Unread 07-20-2018   #3
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Expanding Horizons

Gainaxing:


Hermione paced back and forth in front of the black board in an abandoned classroom on the third floor. However, it wasn't because she was vexed. No, far from it in fact. It was because she was currently explaining to Harry about one of the latest spells she had been reading up on in what had quickly become her favorite book, even more so than Hogwarts: A History in fact, and the pacing was causing some interesting movements in her massive enlarged tits. The door was locked and she had charmed it to alert her if anyone was approaching, which let her walk around topless as she lectured. Apart from her enjoying the constant reminder of her altered state, this also meant that Harry's focus was centered almost solely on her mammaries.

A pleasant shiver ran down her spine as she stole a quick glance at Harry from where he sat on his front row seat. On top of the front side of the desk even. She made sure to put a little extra sway to her hips and shake to her chest. He was definitely following along.

Then there was also the fact that she loved learning and explaining things. Walking back and forth like this let her imagine she was holding a class with a distinctively naughty bend to it. The thought definitely agreed with her, as her lower lips could attest. Perhaps they should try role-playing. She could be a teacher holding a practical in human transfiguration and Harry could be the odd student left out. Of course she would have to offer herself as a practice target since he didn't have a partner and obviously they'd have to test the changes out to see if they were working properly.

Coming to a stop, she shook her head quickly to clear the thought. First things first, she'd have to finish what she was doing. Planning would have to come later. She turned back to Harry and finished her explanation.

"Anyway, while the breast expansion charm does help me to let me move about, it doesn't really change that increasing their size makes them heavier as well," she said as she crossed her arms underneath her chest and lifted as if to prove her point. "And while that does have its own appeal and advantages it can become a little tiring after some time, so this spell would let me move about more freely and try things that otherwise could be difficult to do. Understand?"

Dropping her big breasts again, she enjoyed seeing Harry's eyes follow them as they settled down. But they soon rose again to meet her own and he gave her a nod. She gave him a smile and walked over to the teacher's desk to grab her wand.

"Ready then? Here it goes." Hermione let out a quick breath before she held up her wand. Giving it a counter clockwise twirl, she bounced the tip back and forth three times as she preformed the wand movement, before arcing it over to touch first one breast and then the other as she spoke the incantation. "Minuo Pondus!"

She let out a gasp as a feeling of goose bumps swept across her sensitive flesh. She could see how her tits changed as their natural perkiness was freed from the tyranny of gravity. They quickly rose up and filled out as they were no longer forced down on her chest. Almost transfixed by the way they almost rippled with her breath, she lifted her hands and caressed them, enjoying the way they bounced around as she pushed them.

A smile lit her face as she once again looked at Harry. "It worked, Harry!" she crowed and gave herself a jump to make them bounce. "It wor—pft!"

Unbound by gravity, Hermione's cry was interrupted as the weightless but still sizable and massive solid flesh on her chest rose up with her and continued on upwards. It hit her right in the face and knocked her down on the floor.

"Hermione!" Harry jumped up from his seat on the desk and knelt down next to her. "Hermione, are you okay?"

Dazed by the sudden hit and subsequent fall to the floor, Hermione stared down in confusion as her tits wobbled around on her chest. It was first when she felt Harry worriedly put a hand on her shoulder and saw her breasts' wobbling increase that she realized what had happened.

Indignant, she promptly started to push off the floor. "What? No! That's not supposed to happen! I read the spell description. It's only supposed to make them lighter, no weightl—," she cried, only to stop talking. Her sudden and sharp movement had sent her breasts into motion again, only barely missing from knocking her on the face again. She carefully lowered herself back down.

Lying on her back again, her eyes met Harry's worried face. "Oh. I'm sorry, Harry. Yes, I'm fine. I just didn't expect the sudden fall," she said as she tried to assuage his worry. Seeing her chest starting to calm down, she gave him a sheepish grin. "Good thing they don't weigh to much at the moment or that fall could have hurt. Help me sit up?"

Unwilling to make any sharp movements, she decided against going over to get the book as Harry gently helped her up from the ground. Instead she was forced to think over what had happened and what she recalled from the book. "I guess I must have made the bounces too tall," she said sheepishly as she came to a conclusion. "Anyway, this should be easy to fix. Give me my wand?"

Accepting her wand back from Harry, she held it up again and started moving it in the zigzag pattern of counterspell. "Finite Inca—aA!" However, they were thrown of as her arm movements forced her breasts to the side, before they bounced back and threw her arm off course.

Harry was forced to duck as the miscast spell sailed past him. "Hermione?" he said as he looked at the scorch mark it had left on the stone wall. "For our safety I think it might be better if you don't try."

"But, but..." Hermione tried to come up with a way argue with him. After all, this was her mistake. She had to fix it. But looking at the scorch mark she could see his point and acceded.

"Oh, all right. I guess we will simply have to wait for the spell duration to end. It was my first time casting it, so it should only last for about... An hour?!" she cried, setting her tits of in another fit as she came to the realization. "What are we supposed to do for an hour while I can't move?" She gesticulated to her bouncing breasts to make her point.

"Well..." Harry said as he ran a hand across her sternum along her cleavage, pushing her back down on the floor. He gave her a suggestive look as he reached for his trousers. "I know one thing we can do."

Realizing what he meant, Hermione gave him a grin. She closed her arms across her breasts and offered her cleavage as he straddled her stomach. "Okay, Harry. Come on. Make my titties bounce!"

-----------------------------------

Chapter written by End of Line

Art by me.
If you enjoy any of my content, please consider donating a tip: https://ko-fi.com/metallix
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Unread 07-20-2018   #4
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Re: Expanding Horizons

A Moment to breathe

Laying back, Hermione let her mind bask in the afterglow, her legs twitched occasionally with the echoes of her orgasm. The movement, she noted, made her oversized breasts jiggle slightly.

The last hour or so had been incredible. Hermione knew that sensitivity and breast size were not normally related. So either the spell had increased the sensitivity of her breasts as they grew, or it was a trick of her mind. She was certainly more aware of them than usual, though that could just be from her not being used to the size.

Harry’s hands occasionally brushing over them certainly helped to keep them fresh in her mind as they snuggled under a conjured blanket.

“You’re not going to keep them this size are you?” Harry asked eventually, one of his fingers gently playing with a nipple.

For a moment, Hermione honestly considered it. Walking into the great hall tomorrow, her blouse straining to contain her breasts and drawing the attention of everyone. The thought made her shiver.

“No,” she said with a sigh, “I don’t think that would be a good idea. Why, do you want me to keep them?”

Harry pulled her closer, so her back was pressed against his chest. She could feel his cock twitch against her ass.

“Are you going to hex me if I say yes?” he paused as she laughed. “Actually, would you call me weird if I said they were too big, I mean, How could you even live like this?”

She hummed in agreement, still smiling, “good boy.”

He was right of course. Even if the spell wasn’t temporary, Hermione was a practical person at heart and she knew the novelty would quickly wear off. At this size, even with a bra or support charm, her breasts would make it near impossible to function.

The idea of trying it anyway certainly had an appeal. Maybe, if she could get a couple of days alone to herself, she could try it out. Until then, the spell would just have to remain part of her occasional bit of fun.

Hermione pouted to herself when she felt Harry’s hand move away from her breast, a moment later she heard him mutter a quick tempus spell.

“It’s gone eleven, we should probably get back before people start to wonder where we are. You okay to walk?”

Huffing, Hermione sat up. Harry’s had laid his robe on the ground for her to lay on, but her back still ached a bit from laying on the stone floor and her legs still felt a bit wobbly, but she could make it back to the dorm.

“I’ll be fine, just give me a minute to… clean up.”

She could feel Harry’s eyes on her body as she carefully stood up and she couldn't resist adding a little more sway to her hips as she bent over to recover her knickers. She paused briefly, her hand on her underwear as he chest threatened to pull her back to the floor.

Catching her balance, she gave Harry a warning look, but there was no heat to it.

“Not a word.”

Chuckling, Harry climbed to his feet and held out a hand for her to steady herself with as she pulled her skirt back up. He also took a moment to cast a quickly cleaning charm on both of them and the floor, which she was grateful.

“Do you want me to undo that spell?”

She shook her head, “No, I’ll do it. Just, make sure I don’t fall?”

Undoing the spell wouldn’t hurt, she knew that, but if it felt anything like casting it had? Well, she didn’t trust her legs to hold out.

Stepping behind her, Harry wrapped his arms around her waist and pulled her close, making her smile.

Their relationship had been slow to develop, Harry had struggled at first to show affection, always waiting for Hermione to instigate. Slowly though, he’d gotten more comfortable with physical contact.

This had really taken a turn after their first time together. It had been, well if Hermione was honest, it had been a bit of a mess. Both of them had been nervous and not really sure what they were doing. But after that, things had gotten better. Harry no longer hesitated to hug her in public or take her hand and the sex was definitely getting better with practice.

Now, with her new book, Hermione couldn’t wait to see what else they could do together. She had all sorts of ideas in her head after all. First however, she need to put herself back to normal.

Taking her wand from Harry, she pointed it at her chest and muttered the counter charm.

She gasped as the spell took effect. The feeling wasn’t as intense as the growth had been, but it still felt strange. It felt like her skin was pulling tight and she could see the goosebumps on her breasts.

Looking down, she watch as her they slowly receded, gradually rising up as they shrank back into her chest. Even her nipples were getting smaller.

When the spell stopped, she frowned at her chest.

“Was I always this small?”

Harry laughed quietly, “you’re not small, you’re perfectly sized.”

She blushed at the compliment and silently summoned her ruined bra and blouse. She passed her top to Harry while she cast a simple repair charm on the bra, the fabric knitting itself back together. Pulling the bra on confirmed her breasts were still the same size.

Harry held the blouse up for her so she could focus on repairing it next, the missing buttons flying across the room to reattach themselves.

Now fully dressed, she dispelled the charms on the door and led Harry back through the school. She was thankful Harry had been made prefect, it made sneaking off at night so much easier.

The fat lady gave them a suspicious look, but let them through without comment when Hermione said the password.

The common room was empty as they entered and Harry escorted her as far as the stairs to the girls dorm. Stopping at the foot of the stairs, Hermione took the opportunity to pull Harry into a kiss. Parting her lips to deepen it as he cupped the back of her head.

“Thank you,” she muttered as they separated.

Harry blinked, “okay, what for?”

“For not freaking out when you came into the room, for indulging my… interests” she said carefully.

“It was a shock, but I can’t say I didn’t enjoy it,” he said with a grin. “Any more interests I should know about?”

Hermione smiled, her eyes shining in the dim light.

“Oh, lots.”

“Then I can’t wait to see them,” he leant down, kissing her once more, this time giving her bum a playful squeeze.

In return, smacked his bum with a thwack, the quickly ran up the stairs giggling before he could retaliate. She was already considering what spell to try next.
--------------------------

Chapter by me.
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Unread 07-23-2018   #5
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Re: Expanding Horizons

So what do you guys think? Yes, no, should I continue to post here as chapters are finished?
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Unread 07-24-2018   #6
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Re: Expanding Horizons

Absolutely! It's very promissing, I like Hermione's reactions and the sassy dialogs. Keep up the good work.
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Unread 07-24-2018   #7
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Re: Expanding Horizons

Very much enjoyed this. Would definitely like to see more thanks.
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