[Weight Gain, Anthro, Corruption, Belly Play, Yaoi]

"Halt. You must not come closer. These are sacred grounds."

In front of a cloaked and heavy figure manifested a youthful looking figure. One who radiated with a soft glow, complimenting his gentle form and his almost ethereal nature...

The youthful figure had tall white ears and a fluffy white tail, matching his gentle white mane and complimenting his soft light green robe. It wasn't hard to tell what he was, especially given the markings that were currently visible on his cheeks.

The forest that he had materialized in front of, those sacred grounds that he wished to protect... They were the piece of Nature that embodied him, and the piece of Nature that he was in charge of protecting. Because that's what he was. A Nature Spirit. In a way, he was a minor god, one whose influence was awfully minor...

But given the protective look on his beautiful face, he wanted to make sure that he kept this place safe. No matter what tried to make its way inside...

A single glance at the black-cloaked figure in front of him was enough for him to tell that he was up against an awfully foul individual. It was like the stench of pollution and corruption was sticking to the figure. Like a foul haze that threatened to choke out the life of the sacred piece of nature behind him...

"Ehe... How cute..."

The way that the figure spoke did nothing to make the Nature Spirit feel any more confident. If anything, the needy red eyes that poked out from underneath the hood that the figure wore only served to unnerve him even further. Just who was this, and what did they want with his Nature?

"I warned you." The Nature Spirit said, raising his hands to the air as the ground underneath began to shake. He did not wish to manipulate the Nature that embodied him, since there was a good reason for that piece to be segregated within his domain. And yet at the same time, he couldn't let this black-cloaked figure do what it was that it wanted. What if it tried to burn the forest to the ground?

Yet, perhaps the way that he raised his arms was exactly what the black-cloaked figure had been anticipating. Because it met the way that he raised his arms by raising its own arms. However, it did not raise them all the way over its head...

Nay. Those arms were pointed straight towards the Nature Spirit instead, with a foul energy quickly manifesting within its hands.

"Let your true nature be unleashed."

The Nature Spirit didn't have a chance to properly defend himself before the foul energies shot forward, almost like a punch being fired at bullet speed. And it almost felt just like being struck by such a punch, causing him to double over as all of that potent power rammed into his stomach...

"D-Dirty trick..." The Nature Spirit muttered as he struggled to return to the stature he had before. He needed to gather the power of the Nature around him. He needed to ensure that it was ready to wrap around and squeeze the resistance out of this figure...

Yet even just the act of putting his arms over his head was starting to make him gasp and pant. Yes, he had lost a lot of energy due to being practically punched in the gut. But that didn't mean that he should be feeling this tired...

No, it wasn't that he was tired. At least, not like he would usually be. It was more like the mere act of trying to move was becoming more and more of a struggle. Like his body simply told him that it didn't want to be moved...

"W-What did you do to me..?" The Nature Spirit was normally serene, graceful and composed. But most of that had vanished, replaced with exhausted worry and confusion. Something that was only emphasized by the way that a bunch of sweat gradually began to run down his head in response to the exhaustion pouring through him...

"I told you, cutie. Your true nature has been unleashed. Remove your holy garb, and you'll see what I mean..."

The cloaked figure gave him the info he needed, though it didn't explain anything at all. If anything, it just made the Nature Spirit's feeling of dread grow more and more tangible...

And yet he did exactly what the figure asked of him. Stripping down, out of his holy garb. Revealing the wrapping that kept his chest compressed and sacred, so that no dirty thoughts might pour through his head, as well as the ceremonial fundoshi that would keep him pure...

And... A big, foul mark on his stomach. A mark that was still radiating with this incredibly awful energy, which was still working its way through the Nature Spirit given the subtle way it seemed to sink into his veins...

The mark? It was merely a single character. The Kanji for FAT. Which somewhat explained why he was starting to feel so winded. Why he began to feel like his body wanted to just sit there and soak in the sun...

It wasn't just the feeling either. Now that he had removed his cozy robe, the Nature Spirit finally started to notice the effects of the mark. Most obviously on his upper arms, as they now looked thicker than they had before, even with the layer of fur that covered them. His thighs were much the same, an added layer of plush fat covered up by his fur...

"I... My true nature is no such thing..! I am a Nature Spirit, not a Fat Spirit!" The Nature Spirit cried out, yet even just the mere act of protesting was making it difficult to breathe and cry out further. He just wanted to sit down and sweat his exhaustion off. And his attempts to stay standing were just making it more and more pathetic...

The cloaked figure was getting far too amused by all of it. Far too happy with how the Spirit was reacting to the pollution going through him. Far too happy with how he was gradually plumping out...

That gentle form that had been floating in front of him was very rapidly being tainted by this growing flab. Whether it was with those soft arms becoming more plush than soft to the touch, almost making anybody that looked at them or his thighs want to squeeze their hands into them, even with the fur getting in the way...

Or the now-obvious sag on that tainted belly. It was pushing out further and further. Both directly forward, towards the cloaked figure that had cast this curse on him, and out to the sides. Sagging further and further, over the fundoshi that was supposed to give him modesty... And if he were to sit down, the Nature Spirit would find that his sides were now spilling out past his rear, which would make it even harder to move...

Not that he was really focusing on how it was getting hard to move. No. The thing that was currently occupying the Nature Spirit's mind was the most immoral feeling that he ever could've imagined. The very reason why he had been wearing a fundoshi in the first place, to ward off this feeling...

Lust.

The mere act of breathing, labored as it may be, was causing his now flabby stomach to very gradually rise and fall. That saggy mess was being stimulated by this simple action. And it was causing no end to the lust gradually growing within him...

It was obvious from the blush on his cheeks. How much he was enjoying this. How much he wanted to moan and just give in. But he was better than that. No matter if the flab growing across his body was gradually swallowing his throat whole, giving him two extra chins that were covered in the same extra soft fur. No matter if his face was growing more and more compressed thanks to his cheeks puffing out too, leaving him looking less and less like anything close to a dignified Spirit and more like a mere fat idiot...

He tried. He very well tried to keep himself composed. Even though his body was practically trying to turn against him. He was going to hold on. He was going to fight...

"So cute... I remember what it was like when that was my Nature. To fight back against something I thought was wrong. But then my Nature won out. And I understood what Master wanted for us."

A tinge of horror worked its way across the foxy Spirit's compressed face, as he stared straight ahead. "What... No... who are you..?" The figure in front of him... If what it was saying was true, then... But... There was no way...

Despite what the Nature Spirit wished for, what he heard was utterly true. And he couldn't deny it once the cloak slipped off the figure's form, revealing exactly what he had been fearing...

Standing there, with a stout and sluttily flabby body, was a furred Spirit just like him. The only difference between the two was the animal that they represented. While the Nature Spirit was a fox, this Fat Spirit was a Wolf... Or at least, it looked like he was supposed to be one.

But wolves were proud creatures. Hunters. Protectors of their families. And yet this Fat Spirit didn't look proud at all. He didn't look anywhere close to being able to hunt or protect. No. He just looked like another fat mess, one that was emphasized by the foul glowing mark on his stomach. The same sort of mark as the one on the Nature Spirit's stomach...

"I belonged to a forest further north of here. Until Master came and gave me this..." The Fat Spirit said, panting as he put his grubby little hands all over his flabby stomach. A stomach that would take up more than enough space on a shrine's porch, and that wasn't counting his horribly fat hips taking up most of the porch in the first place. "This absolutely wonderful fat body... Ahhh... Just playing this shrine of mine is enough to drive me mad... Just as it no doubt is doing to you..."

The Nature Spirit refused to admit that the way that his stomach being stimulated was causing him an untold amount of pleasure. Much less admit that he was like the Fat Spirit in front of him. He would not eagerly play with his fat and act like everything was fine and dandy. No. He was better than that. He was a protector. A Nature SpirrriiiIIIIIITTT-

"Kiss, kiss!"

All it took was their bellies bumping together, and the Nature Spirit's train of thought was derailed immensely by the intense feeling of pleasure slamming through him. It felt so good. So overwhelmingly good. He wanted... He wanted more. And no matter how much his mind was protesting, his Nature was telling him that this was how it was meant to be...

"Ehe... You love it, don't you? It's in your Nature as a Fat Spirit to love to be toyed with. To be a pet for Master. He'll be by to pick you up soon. But until then, he told me to turn you. And if he's not here by that time... Then we'll just have to find somebody else that should submit to their nature too. Don't you think so?"

The Nature Spirit was not really listening to the words that were thrown his way. No. Not while the Fat Spirit was pushing his belly up against his like this. The way their flabby bodies were kissing in such an immoral and impractical way was driving him up the wall. He needed this to stop...

But he didn't want it to stop either. Or rather, his Nature refused to let him. The mark on his stomach was glowing brighter and brighter, and his duty was gradually being overwritten in the process. He needed this pleasure to live. To continue being who he was meant to be...

The Fat Spirit smiled as he watched the anguish wash over the foxy Fat Spirit. He would come to understand it all soon enough. But just to make sure he was done...

"Up you go, show me your naughty little 'fatty'!"

The Fat Spirit grabbed ahold of that belly in front of him, yanking it up ever slightly so that he could expose the former Nature Spirit's crotch. A crotch that, like his own currently was, should currently be swallowed up by the flab around it...

"H-HaaaahHHHHH!"

He barely got to see the former Nature Spirit's rod in all of its humiliatingly hard glory, before the act of yanking so hard on the Spirit's belly caused him to climax. Squirting all of that modest divinity out... And with it, the foxy spirit's size as well. As it gradually shrank more and more before the Fat Spirit's very eyes...

Until there was nothing more than a fat little lump hidden underneath the Fundoshi that the former Nature Spirit was wearing. A fat lump that was trapped in between his thighs, and the belly that slammed down on it just a moment later...

The Nature... The Fat Spirit's mind was frizzled and frazzled by all of this. Too much pleasure for him to handle. Too much immorality. But it didn't matter. It didn't matter how badly he had been struck by all of this...

Because that was in his Nature. His Nature was to be fat and submissive. To be a toy for his Master. Drooling and panting whenever his squishy body was played with. Cumming uselessly with his fat little tiny thing, all while being treated as nothing more than a pet, a far fall from what he had been before...

And he wanted nothing more than that. It was what he was meant to be. It was why he was drooling and smiling, despite looking like such a fat mess....

That was his Nature as a Fat Spirit. To be so horny and heavy...