Commissioned by me
Artwork by shirasiyuki
Story written by  xylenqs

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...or so she thought. Just because Fay could stay perfectly still and not sink any deeper didn’t mean it was a good idea to simply wait things out. Sticking around just meant losing more time, and if she had to stay here for hours, it just might drive her crazy, knowing she’d been outwitted by a field full of muck. Without thinking, the canine’s eyes drifted back down to her haunches... and her shorts, half soaked in the mud.
“Why me...” She groaned.
There was no way around it. If she moved, it would lather up even more of her lower attire and they’d be ruined. If Fay stood still, she’d just continue to be stuck, and continue to slowly sink. The very thought was almost as bad as actually doing it, but she had to face the facts: Fay would have to keep moving and intentionally let her shorts get ruined.
“...alright, Fay... you can do this. Just... don’t think about that stuff getting into your shorts.”

Having it seep into her socks was already bad enough, but there was no way to go but forward. Slowly, carefully, Fay tried to lift her left hip upward. When it didn’t move, she had to wiggle her hips to dislodge it from the creamy muck. Although it worked, slowly starting to rise, her haunches were starting to plunge even deeper. Her tailbase was getting dangerously close to the earth, and already her tail was forced to lightly rest against the surface.
“Nnnhh... ugh, I can’t believe this...”
Even now, it didn’t feel real. How could anyone actually be sinking up to their rump in mud like this? With her gaze still transfixed on the muck, she gave another bounce of her hips, trying to loosen up its grip on her, without pulling her any deeper into the pillowy embrace. Her brow furrowed. Another bounce of her hips, just a little bit harder.
Sphlorph.
Fay shuddered, a grimace on her face.
“...there’s still no bottom to this stuff, is there?”
As her feet, stuck though they were, cautiously felt around for some sort of solid ground below her, it became abundantly clear: the only thing keeping Fay from sinking all the way down was however buoyant this muck was.
“...alright, one more test.” Fay told herself, gulping softly.
Knowing it would make a mess of her hands, she placed them carefully against the surface, not pushing, but simply to keep her balance. One bounce, then a second, third, fourth, all the way to eight bounces. If she wasn’t going to sink any deeper, then getting out was still doable. If not... well, she could only hope it wouldn’t pull her down until she couldn’t move at all.
Fay watched curiously, the annoyance of sinking and that awful feeling of mud filling her socks and pouring into her shorts pushed to the side.
“...ulp.”

It wasn’t fast, but she was still slightly sinking. As the bounces continued, it was as if she couldn’t stop herself. She had to know if she could make it all the way to safety without going any further down into the pillowy muck. Even as she watched the last of her shorts sink down, down, Fay kept hoping this wasn’t something that would ruin her entire frame. Just imagining her fluffy, white fur, completely stained from head to toe... it was awful!
Finally, the canine stopped, looking left, and then right.

“Ohh... what am I going to do now...?”