Author's Note

CONTAINS: Foalcon, Filly/Filly, cunnilingus, latex, incest, encasement, latex vacuum bed (vacbed), bondage, dessert as promised from last chapter

Sweaty

“Alright girls, just remember; you only have one hour. Then it’s time to wash up and get ready for bed, okay?”

“Yeah, yeah.” Zippi stuck her tongue out, peeking out from under the canopy of rustly rubber that rested atop her head. “You’re not gonna count off the time we spend goin’ over rules, are ya’?”

Zeta chuckled and shook her head. Her eyes flicked briefly to the clock mounted on the basement wall, before returning to the pair of fillies. “I wouldn’t, but I trust you know enough that I can spare you the lecture for another time, right?”

“Duhhhh!”

Zeta’s warm motherly smile slowly morphed into a smirk. Even though this situation was something Zippi had explicitly asked to be put in, she still couldn’t help but to feel a slight chill run down her spine as Mom winked at her. “Well, then I certainly won’t keep you. Just remember to have fun, okay?”

“We will,” Zew finally put in. It was a little hard to ascertain her expression—after all, Zippi currently had her head lying on the lower part of her sister’s stomach, ever so close to the dessert she’d claimed just an hour earlier, before those delectable hayburgers. But of course, it wasn’t fair for only her to get dessert...so she’d given Zew the pleasure of a perfect view of her rear, just hovering inches away. It’d be even closer than that once Mom zipped them up and turned on the vacuum, sucking the air out of the enclosure and sandwiching them between the inky-black latex layers of Mom’s trusty old, aptly-named vacbed. Heck, that part was always her favorite, even without the reciprocal dessert involved; this was just the metaphorical cherry on top.

Zzzzzzzrrrrrrrrrrp!

Just like that, it was starting. Zeta disappeared from view, as did the entire basement. There was a moment or two where it seemed like time stopped, and she was waiting basically forever...but then she heard a click, and the distinct high-pitched whine of the vacuum, the next-most important part of what made it a vacuum bed.

Granted, it wasn’t much of a bed. She couldn’t really imagine herself sleeping in one, especially with a vacuum squealing away in the background. But it certainly was comfy...especially when every inch of the ‘sheets’ was pulled down tightly over her frame.

It took a second or two for enough air to evacuate their shared bed for the rubber to grace her fur, but when it did, it was everything she’d been anticipating and more. Bit by bit, she felt it flatten around her extremities, following her every curve; starting as high as the horn, and slowly traveling down in an uneven, seemingly uneven wave all the way down to her hind legs. Zippi only barely remembered in time to push her head down far enough between Zew’s legs to be able to enjoy her dessert—in a few moments, she wouldn’t be able to manage it.

Just as quickly as the scent of bitter chocolate filled her nose, it was quickly replaced with that of thick, factory-fresh latex pressing down across her face; first her eyes, then her muzzle, and finally her entire head was being gently squeezed from all sides by the stretchy material. Thankfully, the rubber was enchanted to allow breathing by one of Mom’s unicorn friends, so she wouldn’t suffocate no matter how tight it clung to any part of her face.

Behind her, she could also feel the same gentle force squeezing her flanks from the side, pinning her tail to her back, before finally all averaging out, beginning to pull her ever-so-slightly down from all angles, even closer to Zew. Even though she could still wiggle around just a bit as everything finally flattened out, she knew she definitely wasn’t going anywhere for the next hour. But that was exactly how she wanted it. More to the point...that was exactly how she wanted Zew.

The next few minutes—at least, she assumed they were minutes—passed in a blur. Though Zippi couldn’t move at all, she soon found her tongue was definitely long enough to lap at Zew, and be rewarded with a trickle of her vaguely-creamy cookie dough juices. Zew began returning the favor, and before long, Zippi was struggling even more. Not just to feel the immensely strong rubber pinning her limbs to the floor, and just how helpless she was, able to be poked and prodded by anyone outside—though that was part of it. She was more so struggling because her sister was hopelessly wriggling too, moaning and sighing as she gave little licks that caused Zippi to whine, lick, and wiggle as well—the little jolts of pleasure shooting around her latex-wrapped limbs, head, and entire body were too much to sit still and take.

In no time at all...things got sweaty, very much so.

Zippi first felt sweat beginning to form on her forehead, and then the rest of her body—while this rubber was enchanted to allow her to breathe through it, her skin had no such ability to breathe...and when her skin couldn’t breathe, things tended to get wet. Drops were forming all over, the heat was building, things were just a little bit slippery as a slight hint of cinnamon wafted into her nose—the telltale aroma of her sweat. The latex was just as unrelenting, but it seemed to be growing hotter, gripping tighter, stretching somehow even less as the distant whine of the vacuum still carried on in the background. She could barely hear it over the squishes and wet licking sounds between her and Zew, though...and the creaking, stretching, squeaking rubber was a factor, too.

If she could have wiped her forehead, she might have, but the vacbed was unrelenting. Zippi could only shrug, and bury herself even deeper into her twin sister’s pussy, while pushing her rump back as best as she could into Zew’s muzzle.

They were going to be here for a while enjoying their sweaty dessert...so she figured they might as well make the most of it.