The Eevee remains seated, closing his eyes as he enjoys the feeling of the sun on his fur. Such a great day! ...It would be even better if this itch on its butt would just go away. He glances back at his tail-end, snorting in annoyance. A grumble comes from within him, and he smirks. We'll see what that itch thinks of this...
Despite your efforts, your legs keep trembling in fear, making your feet rub against the anus. At this point, you are wondering if it's even worth trying to stay still. Wait, this trembling... It's not just you... Garoooon... A loud groan comes from above as the puckered tail-hole rumbles even more, rattling your feet! "No, wait!" Your protests are ignored, and the pink sphincter pushes outwards as a massive gust of gas spews over you! "Prrrfff!" Your eyes sting and the world starts to spin, the Eevee just farted! Ugh, how could such a cute little creature smell so bad?! You put your hands over your nose, but to no avail, the stench is still just as potent as ever! "Pffrrrf!" The wrinkled flesh spreads apart and blasts another fowl wind onto you, this just won't end!
That does it, you've gotta get out of here! You try to swing your feet around... Only to find that they won't move. In fact, they are within the Eevee's tail hole! Panic settles in as you struggle to free them, this only seems to excite the hungry anus as it suckles upon its prey.
The Eevee, meanwhile, lets out an involuntary gasp. That last fart felt... good. More than just relief, as the pink tip protruding from the Eevee's sheath shows. He realizes that, whatever that sensation was, he needs more! He slowly raises his rear, closing his eyes with a naughty smile as he prepares for another burst...
You are doing your best to get his attention, kicking and screaming to no avail until light meets your eyes, he's lifting his rump! He must've noticed you! Your heart drops as you feel another deep rumble. Hold on... This could be good, maybe this one will push you out! ...Just like the last one. You decide to resume your struggles instead, until... "Prrrff!" Another toxic gust is released over you, and your ankles now have been engulfed. This shouldn't be happening, that wrinkled hole's meant to push things out, not pull them in! "Purrrf!" Yet here you are, stuck up to your legs... torso in the living quicksand. The Eevee is having a much better time than you, merrily wagging his tail while stretching forward for maximum flatulence output. He stops for a second, heavily panting as he purrs in delight. Then...