[Age Progression, Monster Girl TF, Genderswap]

"That's it, Yuusha! We're almost there!"

"You don't... Need to tell me... twice..."

"Come on, your friend's keeping the demons back! If you pass out now, he'll end up getting overrun!"

"Hhaaahh... S-Sorry, Qy..."

A young hero by the name of Yuusha was struggling stand after trekking all the way to the innermost chambers of the Fairy Kingdom's Temple, his body aching with every step he took. The reason why they had gone all this way in, guided by the pink-haired fairy by his side named Qy, was to try and gain the assistance of the Fairy Queen in their fight against the Demon Hordes. The Demon King was on the verge of taking over the world, and only by allying with the Fairies were they going to be able to win this long drawn out war.

Yuusha wiped his head as his stray blonde ahoge drooped further and further down, reflecting his current exhaustion. "Are we even sure she's here..?" He muttered as he approached the big doors leading to the innermost chamber. The place where the Fairy Queen was supposed to be resting until the appropriate time came. A chamber that none were allowed to enter unless it was absolutely necessary.

"Of course. We've not seen the Fairy Queen for years, so she must be in here!" The tiny helper cried out as she flew around him, pushing up against the back of his head as well. "Now go, stop stalling! We're literally right there!" Qy cried out as she kept ramming into the back of her ally's head, pushing him further and further along in the process.

The young hero struggled to stay standing the more his little friend pushed him, a single thought occupying his mind. His ally, a fellow youth by the name of Yuuta, had protected the front of the temple alongside the other Fairies. He was stronger than him, but he didn't have the qualities of a Hero. It was why he had elected to stay back and protect the temple while Yuusha went deeper inside.

More than anything else in the world, Yuusha just wanted Yuuta to be okay. And as he stumbled his way in through the big double doors, he hoped that the Fairy Queen could help him keep him safe. Dealing with the Demon King was secondary compared to that important objective. His friend mattered that much more to him...

"Fairy Queen Titania! Please! I need... I..."

Yuusha's voice started to trail off as he noticed that the room was entirely empty. There was no Fairy Queen. The thing that stood out about the room was a pool of sparkly water, with the tiniest hints of fairy dust lining the edges of the pool. Where was the Fairy Queen? Had she been a myth all along? There was no way that she was, otherwise... What was the point of the Fairies being like this? Why would they trick people into thinking they had much more power and influence than they actually did?

"Q-Qy? Where is she? Please, she can't just not be here! What's going to happen to Yuuta if she's not here to help me save him!?" The youth was frankly frightened, but his fear only served to grow as it seemed like his fairy friend had disappeared as well. "Q-Qy?! QY!? WHERE ARE YOU!?" He screamed out from the depths of his heart, hoping that she hadn't abandoned him after this devastating revelation...

"Oh, pipe down." Thankfully, Qy was still around. She just flew out from behind his head, shaking her own as she sighed. "Guess the old lady ended up fading away while we weren't looking. But that's okay. We can still get her help even if she's not here." She chimed, while her eyes glinted ever so slightly.

Yuusha didn't understand. But as he tried to speak, he found his lips unable to move. It weren't just his lips either, the rest of his body was equally paralyzed. And no matter how much he tried to make his body work or move as it should, it didn't do anything. It just stood there. Looking directly at the Fairy that was supposed to be helping him.

Qy smiled as she snapped her fingers, causing the young hero to float towards the pool. "You see, we Fairies aren't exactly the type to really need a Queen. So we take somebody cute and powerful, like you, and turn them into our figurehead. We get to set the rules, and Titania gets to act like she matters. And since Titania decided that she'd be better off as a pool of her own juices... Well, let's just skip the part where we look long and hard for a new figurehead and turn you into one. Doesn't that sound fun, Yuusha?" She chimed, and before he even thought to try and break free from his paralysis to yell at her, she started speaking yet again. "It'll help you save Yuuta too. I'm sure you want that."

Yuusha trembled as she pointed that out. It was true. If there was one thing he really did want, it was his friend's safety. But that... That didn't make her betrayal sting any less. Not only that, but he didn't want to be used as some sort of figurehead! He just wanted to be himself! He wanted to be Yuusha, the young hero who had done his best against the Demons..!

Unfortunately for Yuusha, he didn't have a choice in the matter. Not when Qy snapped her fingers once again, and he went plummeting straight into the sticky waters down below. And though he immediately regained control over his body, he could do very little to stop the liquid once it had started to affect him.

Spending time inside this sticky pool was quickly doing a number on his clothes, making them melt off him. Not because of the properties of the water itself, but the magic that sustained it. And it didn't take long for him to end up completely naked, the boy blushing brightly as he tried to swim to the surface with a stiffy down below.

The more he swam, the harder it became. And yet despite how hard it was to move his arms against the thick consistensy of this sticky liquid, he was getting close to the surface. Closer. So much closer. Not at all realizing that it was because of how smooth and long his arms had gotten, or that said smoothness had spread across the rest of his body as the sticky stuff pulled off more and more of his developing masculinity.

Yuusha didn't realize that his hair was growing longer and longer until it reached all the way down to his ankles, nor did he feel the way that the water around him tugged on his more sensitive areas, his chest swelling bit by bit while his hips widened and the gap between his thighs narrowed more and more until something critical was missing in between them, not that he'd be able to see that it was missing without parting those very same thighs.

Only once he started to push through the surface of the liquid he had been stuck inside did all of these changes finally register inside his mind, as the warm air of the Queen's Chamber started to brush up against him. Or rather, brush up against her. Because by exiting the sticky liquids left behind by the last Titania... She had taken upon that identity, something she noticed by looking at a mirror Qy had fetched while she was busy trying to escape the sticky juices...

Yuusha... No, Titania, looked at herself in the mirror as she carefully climbed out of the pool. This new body of hers felt so strange. And looking at how her body had matured and grown extremely feminine by swimming through all that juice was enough to make her blush. She looked even more beautiful than her Mother... The only thing that really didn't make her seem like she was a Fairy was her lack of wings.

"Q-Qy... I..." She muttered, slowly wrapping her arms underneath her bosom. Just touching herself was enough to make her blush harder. Why did she have to be this sensitive? She wanted to do so much more than just touch her skin. She wanted to play with herself until... G-Goodness, where did those thoughts come from?

Qy just smiled as her new 'Queen' looked more and more bewildered. "Don't worry, Queen Titania. I'll take care of everything. You just worry about tending to your needs. And trust me, you'll have plenty of those." She chimed, all while using a bit of her magic to make the mirror disappear. She didn't need that any longer.

"B-But..." Titania muttered again, only to let out a moan as the smaller fairy flicked her fingers across the bigger woman's firm and erect nipples. The pleasure piercing through her was debilitating. Was this how she was supposed to feel? Not only was she supposed to be used by the Fairies as some sort of figurehead, but she had to be this riled up at all times? She wanted to say something, but looking at the Fairy made it really hard to find the right words.

Qy giggled a little more as Titania still tried to act like she once was, before flying around her 'Queen' with fairy dust sprinkling from her wings. The dust sticking to the sensitive skin of her dearest 'Queen', all while it melded together into one long nightgown-like dress that did absolutely nothing to hide away her most intimate areas, both her breasts and her dripping slit quietly visible behind the transparent silk-like substance.

Titania was driven further and further towards her climax by the clothes on her body. It was getting harder to think. She needed something to satiate the extreme lust within her. But what? She wasn't used to her body, and she was too nervous to outright touch herself just yet. What could possibly help with this extreme need inside her?

Of course her little Fairy friend had the answer, as she snapped her fingers and used a bit more of her magic. Or rather, she made the Fairy Queen use her own magic, as Titania's own fingers snapped. In an instant, the Temple twisted to her commands, and something went tumbling in through the doors to her chamber.

Something short. Something cute. Something familiar and a bit bruised. Something that made her even wetter just by looking at it. There was no mistaking that adorably muscled boy, nor the sword the size of his body that he carried around. It was Yuuta. And he was still safe. Qy had spoken one truth at least, she had been able to save him from a death at the hands of the Demons...

"What just... What just happened?" The muscled boy asked as he looked around, only to lay his eyes on the Fairy Queen. And a blush formed on his cheeks, uncharacteristically so, while his terribly tiny trousers tented at the sight of her. "F-Fairy Queen Titania..?"

Titania understood now. Just by looking at Yuuta, she knew what she needed. Before he had the chance to hide away or try to present himself properly in front of such an esteemed Queen, she approached him and lifted him up in her arms, panting on his face while sliding his bulge between her soft thighs. Grinding him gently up and down, as her eyes turned to hearts.

The last part of her transformation came into effect as she placed her lips on his, two beautiful butterfly-like wings sprouting from her back as she locked herself in passion with a boy that couldn't do anything to resist her. Yuusha was now but a distant memory. The new and dangerously horny Fairy Queen Titania had taken his place, and she would do many things to that boy's dearest friend.

All while Qy smirked from a distance. She had done as the Demon King had asked. Now the Fairies were going to have a lot more fun, with the whole world as their playground. All thanks to their 'Queen' embracing her 'true nature'.

"Thanks, Yuusha. Ehehehehe..."