Ambrosial Excretions

“Thank Celestia that is over!” Twilight cried out as she literally staggered into her room at the end of the day. She’d managed to keep what really happened under wraps, at least she thought, but it was such a relief to be out of the public’s sight.

“Yeah,” Spike chuckled awkwardly. “Hey, don’t sweat it, it’s nothing the other Princesses didn’t have to do, right? If they got used to it, you will.”

Twilight sighed as she tossed off her dress and released the spell hiding her diaper. She looked down beneath her, watching it sag low beneath her. She’d gone several more times over the festivities of the day, and she was pretty sure it was full at this point.

“Uh, I’ll take care of it,” Spike said, almost managing to hide the disgust on his face as he ran over to get the diaper bag. “Remember don’t try to help, touching it with your own magic may make it react. Just lay on your back on the floor.”

Twilight grumbled a little, lowering herself slowly to the floor, then awkwardly rolling over. She felt the weight shift around her rear portions, twitching one leg at the sensations again before splaying out her hind legs fully upon her back. The rubbing wasn’t as distracting as it’d been before Spike provided her with… relief, but it was still something she didn’t imagine getting used to quickly.

Spike looked over at a towel as if thinking about wrapping it around his face, but opted not to as if worried it’d make her more self-conscious. He was too good for her. Instead, he very carefully detached the clamps on either side of the diaper. When he opened it up, the smell was all the more intense, but thankfully not as putrid as she expected, as if the later load had been more sweet smelling.

Twilight didn’t look down, but used her magic to grasp herself by her hind hooves, lifting her rump slightly off the floor but careful not to touch her body anywhere that might be contaminated. She couldn't believe she was having to treat herself like a living chemical spill.

“Thanks,” Spike said politely, though he sounded like his nose was covered as he tugged the diaper out from beneath her. When it was out, the thing seemed to respond automatically, folding itself up into a tight ball, a magical ‘contaminated’ symbol pattern forming on the surface.

She took a deep breath, awkwardly keeping her bottom up as she felt him wiping her down with the clothes that they’d been provided with. The fabric was soft like feathers as he carefully wiped front to back, and she started to relax under the gentle massage. Thankfully the fabric had seemingly pulled most of it off her completely, so there was very little to wipe off. It seemed most of the sliminess she’d felt was just the feel of the material. That was a relief at least.

Twilight lowered her rump down as soon as she safely could, just when Spike was reluctantly moving on to her now-bare marehood. She twitched a little at the sensation as he wiped over it, jerking one leg and moaning quietly. He paused a little nervously and then continuing, making sure to get every nook and cranny. The enchanted cloth seemed to pull every last bit out of her fur, leaving it surprisingly soft as if just washed.

“Sorry,” Twilight breathed an apology for the moan, then glance over at the empty bucket of ice cream still sitting on the desk nearby. “You know… I wish it had just been alchemy ingredients. The idea of someone eating my… poop, even in a tiny filtered amount, is just too gross.”

“Hey, don’t knock it,” Spike offered. “That stuff was good, you know because you had it too!”

“You’re not wrong,” Twilight admitted as he cleaned around her pucker. Somehow it felt even better than rubbing at her slit, sensitive as it got used to the chemical exposure. “But all the same… I think I’ll avoid it in the future.”

At least she was smelling much better, like even the initial stinky waste had somehow improved as her energy adjusted.

“Speaking of which…” Spike paused. “Uh, Twilight. This is going to sound weird but… mind if I lick um… I want to see if it tastes the same.”

“Good Celestia, you can be disgusting at times Spike,” Twilight tensed, drawing her legs instinctively together for a moment before relaxing them. “You know what though… go ahead. It might relieve the tingling I’m feeling around my… anus...” She couldn’t believe she agreed and regretted the words as soon as she said them, but didn’t take it back.

“Ok!” Spike said. “No homo, right?” He clearly didn’t know what that meant, but she let it go again.

She’d expected him to just taste her, but he did quite a lot more. Twilight always forgot how long his tongue was until she saw it in action again.

Or felt it in action in this case, since she didn’t have the nerve to look down. She felt the stretchy appendage wash over her, whipping back and forth and slathering her in saliva from her belly button down. Though she’d mostly calmed, she blushed harshly again as he worked his way over her marehood, seeming to intentionally tweak at her labia and clit, then all the way down to her behind. She tensed more when she felt his tongue-tip press slightly into her behind, swirling around a few times before extracting itself.

“Wow that’s… not actually that bad,” Spike observed when he finally withdrew his tongue. “Though it’s pretty spicy tasting… burns a bit at my tongue too. I’m pretty sure if a pony tried to do that, it’d probably kill them.”

“Well, I’m not planning on a pony doing that,” Twilight shivered slightly.

Now that she was clean, Twilight could take the fresh clean diaper in her own magic, lifting her bottom up again and sliding it beneath her before wrapping it around her hips. Hopefully now that the smell had started to turn, the next experience would be somewhat less unpleasant. And hopefully Spike wouldn’t get a taste for what he just did.

Though maybe she wouldn’t mind if he did a little.