Clara’s elbow bumped into her stomach, pushed back by Janet’s ass. Her friend, however, kept pushing, and the thermometer sank in deeper. The rim of her asshole opened a little further and slipped over the tips of Clara’s fingers. Clara, who was too stunned to react, watched in growing amazement as her fingers slipped into the brunette’s ass almost effortlessly. Her fingers had already disappeared from view, and now the back of her hand was steadily being swallowed up as well. Her eyes opened wide and her eyebrows shot up as Janet managed to take her whole hand. She could feel the ring of Janet’s ass clutching her wrist; not too tightly, but definitely noticeable.

“Holy shit,” she whispered.

“Well, technically a shit is something that comes ''out'' of your ass,” Janet laughed.

“But– I– How– Err… Is this a new zombie ability?”

Janet looked over her shoulder.

“Oh, you poor little straight girl. You are far too precious for this world. Looks like it’s up to me to educate you in the ways of the world,” she said, as if accepting a burden.

“Trust me, it’ll be fun,” she added with a wink.

“Let me just see if I can actually get free first,” said Clara, giving a tug. “I have this image of my hand getting torn off by your butt.”

“Hot.”

“No, ''inconvenient''.”

Clara pulled her arm back harder, expecting resistance. Instead, her hand came out fairly easily, which was the good news. The bad news…

“Uh… J–Janet…”

The brunette looked back.

“What, have you never seen a gaped out asshole befo–”

She paused, looking at the thick red tube connecting her friend’s hand to her butt, stretching about 8 or 10 inches.

“…Okay, that’s… I think that’s a zombie thing.”

“Uhhh… oookaaayyy… I, err… well, since I’m supposed to be giving you a full checkup, I suppose this is something we should definitely examine further, right?”

Janet found herself nodding.

“Yeah, I guess so. Just, uh… be careful, please? I already lost my arm and most of my hair today. Not really looking to lose my ass as well.”

Clara slowly nodded.

“Of course. Do you want to turn around? The two of us can see more than one.” Janet agreed, and turned around, which was a little awkward with one arm. It wasn’t long, however, before she was lying spread-eagled on the bed, propped up against the headboard and studying Clara like a hawk as she gingerly poked the red tube between her legs.

“Assuming the zombie virus didn’t mutate your insides yet,” Clara said, “these should be your bowels.”

She inserted two fingers of each hand into the opening at the end and pulled them apart, gaping the opening about three inches wide.

“They’re pretty stretchy too, but given how you just swallowed my hand like it was nothing I’m not really surprised.”

Keeping the opening spread with one hand, she moved her other arm inside, this time of her own volition. She didn’t stop until the red flesh had covered her entire forearm, up to and including the elbow.

“Wow, this is really deep.”

Clara chewed her lip, seeming to be making some sort of decision. She looked Janet in the eyes.

“Do you suppose the same thing would happen if we tried this on your pussy?”

Janet arched an eyebrow. “Well, look at you, you little minx,” she smiled. “Looks like we’ll make a lesbian out of you yet. Go on then, why don’t you find out?”

The first issue, of course, was whether or not Clara could slip her arm out of the red, warm prison it was enveloped in. She brought her other hand up and started trying to peel it down like a fleshy sock.

“Oh, that feels really weird.” said Janet.

“…''This'' is the bit that feels weird?”

“You know what I mean. Fisting, been there, done that,” said her friend, rolling her eyes. “Not quite to this degree, or at this, er, angle… but still.”

“Well, fine, you big baby.” said Clara, stopping the process and leaving herself engulfed to just under the elbow.

“We’ll leave that for now and get on with the other arm.” Lining up her hand, she hesitated. She’d never done this before. Janet’s pussy looked up at her; despite the circumstances, it still looked so… cute, really. Hairless, and slightly damp. She took a deep breath and poked her index finger through the velvety lips and inside her friend…

Janet smiled at her encouragingly.

“That’s it, don’t be shy. You can add a few more fingers if you want.”

Following her friend’s instructions, Clara added her middle and ring fingers as well, and started slowly moving them back and forth. Janet’s breathing grew heavier at the stimulation.

“Mmmm. That’s it. Keep going.”

Clara increased her pace a little and, since she didn’t encounter a whole lot of resistance, added her pinky as well. Her hand was moving in and out almost the entire length of her fingers now, plunging in to her knuckles and only stopping just before she was about to pull out.

When it became clear that there was nothing out of the ordinary going on, Clara grew bolder, curling her hand into a fist inside her friend’s pussy.

“Ooooh, I felt that,” commented Janet, leaning back against the headboard. Her one hand started to massage her nipples as she was technically double fisted, Clara’s other arm still wedged in her prolapsed asshole.

Clara, meanwhile, felt herself get warmer and warmer as she got into her task. She was forgetting all about the chaos outside, their possible undead status included. All that mattered right now was pushing more and more of her arm inside that sloppy wet cu– hang on, what was this? Her fist banged against something.

“I think I just hit your cervix.”

“So? What, are you gonna worry about hurting me? My guts are halfway out my body, dumb dumb, now get in there and pulverize that thing!” Janet squealed, eager to ride this train as far as she could now that the world was crashing down around them.

Clara briefly considered just punching right through the obstruction, but given their somewhat fragile state she decided to take a slightly more subtle approach. She stopped thrusting when her fingers hit the back of the brunette’s vagina again and uncurled her fingers. She guided the tip of her index finger into the small divot in the center of Janet’s cervix, steadily ramping up the pressure until she could feel the little hole open up. The tip of her middle finger joined the fray, as did the other three whenever one got through. With all her fingers through the barrier, she pressed them together tightly and pushed on. The ring of Janet’s cervix squeezed her hand like a vise but, once the widest part of her hand was through, the rest, to her surprise, slipped in easily. Not prepared for the sudden lack of friction, her hand shot forward and punched the back of her friend’s uterus.

“Oh my god, I’m so sorry! Did I hurt you?”

“Hell no, that felt awesome. Do it again.”

Clara shrugged, which apparently made Janet feel really nice given where both of her hands were at the moment. She pulled her fist back and repeated the action a few times, whacking the back of the uterus. She could even see each blow through the skin of her friend’s tummy.

“Uh, maybe no Alien-style chestbusting,” said Janet. “Or… wombbusting?”

“Yeah, yeah, fair,” commented Clara. She tried flexing her hand inside Janet’s womb, and as her fingers uncurled and explored, she found two further holes.

“Oh… your fallopian tubes! I wonder…”

“No wondering, more weird shit,” hissed Janet, pulling her legs up towards her body. “Fuck, should have done this ages ago…”

As she felt curious fingers prod at her most innermost holes, she reached her free hand down and started to pull more of her bowels up her friend’s arm…

Figuring that using her smallest finger would probably be easiest, Clara worked the tip of her pinky into this new hole, pushing on until she hit the second digit.

“Wow, I didn’t even know this was possible! Do you do this often?”

“Depends. I fist myself pretty frequently and I’ve had my cervix fisted a couple of times, but you fingering my fallopian tubes? That’s a new one.”

Clara smiled. “Good. That way I’m not the only one getting deflowered today.”

With her other hand otherwise occupied, she had to stretch her pinky and thumb to reach the hole on the opposite side, but after a minute or so she had the first digit of her thumb embedded in that small tube as well. Now that she had a bit of grip, she pulled her two extended fingers towards each other, allowing her to get deeper still. Janet was now panting and moaning uncontrollably. She’d pulled out her guts far enough to cover the redhead’s arm all the way to her shoulder, but she’d abandoned that quest as her orgasm came closer, and was furiously rubbing her clit instead. Clara bottomed out, her knuckles reaching the two openings, which prevented her from going deeper.

“Come for me,” she whispered as she wiggled her fingertips, tickling Janet’s ovaries.

“Oh, believe me, I’m way of ''yoooooooooooouuuuuuuuuuuuuu''!” said the brunette, the last word turning into a scream as a toe-curling orgasm roared through her body. Once her hips had stopped bucking, Janet collapsed on the bed, allowing the redhead to gingerly extract her hand from the depths of Janet’s sex. But Clara wasn’t done yet – she still had one hand trapped, after all.

“Don’t relax just yet…”

With no purchase to be found on the slippery walls, she pulled up a fold of intestine and squeezed it between her palm and fingers as tightly as she could. She got to her feet and started walking backwards, unspooling Janet’s guts even further as one arm length turned into two.

“Should I keep going?” she asked.

“Hey, why stop now, right?”

Keeping the opening in place with one hand, Clara plunged her other arm right back in up to her shoulder, grabbed another fold and pulled. When less than half her forearm remained inside, she encountered resistance and lost her grip.

“Ooh, I could feel my stomach dropping,” said Janet. “I think this is as far it goes. But before we play around with my ass, I think it’s high time I popped your cherry.”

She stood up, careful not to step on the giant red tail hanging from her ass and gestured at the bed with her one hand.

“Your turn.”

Clara went to sit on the bed, heart beating against her ribs as she imaged just what Janet has in store for her. She almost jumped out of her skin when all of a sudden she heard a thud against the door. She turned, mouth open, and started at the equally startled one-armed brunette.

“You don’t think…”

There came a ghastly moan. Then another thud.

“I do think. We gotta go, ''now''!” yelled Janet. She moved towards the window, stumbling a little as her feet became wrapped up in her intestines.

“God damn things! Give me a second…”

She started to coil them around her neck, fingers slipping over the wet loops. Then, with a deafening crash, the door slammed open…

A group of seven people burst through the door. With their grey skin, shuffling gait and constant moaning there was no doubt as to what they were.

“Guys, it’s okay, we’re zombies too,” said Clara, “so there’s no need to eat us.”

There was no reaction.

“Umm, Janet? What do we do?”

Janet’s eyes darted back and forth between the zombies and the fridge. She rushed forward. One of the zombies took a swipe at her, but she ducked beneath it. She threw open the fridge, grabbed her other arm and sprinted back to Clara.

“What the fuck?” the redhead yelled before she was almost knocked over when Janet threw her arm around her, forcefully guiding her to the window.

“No time!” the brunette yelled, “Get ready to jump!”

She let go of Clara, raised her arm protectively in front of her head and leapt forward, shattering the window and falling to the ground one story below.

Clara’s momentum carried her forward, and she barely had time to jump before falling through the window as well. Her foot caught on the window sill, sending her tumbling down. The last thought she had before she landed was ‘''At this rate I’m going to be a virgin forever.''’

Janet landed and rolled, feeling extremely cool as she got to her feet.

“Hah, that actually worked like it does in the movie! Awesome!”

She looked down at herself, noticing a few lacerations from the glass, but no bleeding or pain.

“My lucky day, I guess.”

She walked over to Clara, pausing. Her redheaded friend was lying on her back, unresponsive.

''Uh oh.''

She went over and put a hand on her neck. No pulse… then again, they were zombies, right?

Suddenly, Clara sat up, eyes rolled up into the back of her head, tongue out as she moaned.

“Aaaaah!” Janet cried, leaping backwards and landing splaying out on the grass, before growling as Clara pointed and laughed.

“Got ya!”

“Yuk yuk. You scared me, dummy.”

“I’m a zombie, I’m meant to be scary, silly!” giggled Clara, getting to her feet. She turned around to look up at the window she had just jumped out of.

“Eeeesh, that’s something I would not have tried alive, alright,” she said. She scratched the back of her head, and paused. It felt very… soft.

She gave a careful push with the tips of her fingers. She could feel something shifting around underneath her skin. That wasn’t supposed to happen, right? She prodded again. Her vision briefly went white, as if someone flashed a camera right in front of her in a dark room.

Yeah, something was definitely wrong.

Before Clara had a chance to tell Janet about it, they heard the sound of glass breaking from above. They looked up, and saw one of the zombies climbing through the window. He took a step off the window sill and slowly turned forward as he fell to the ground like a sack of grain.

The two girls winced as the zombie landed on his head, piledriving into the pavement with a loud snap. His body went limp and collapsed on top of him. His head was bent back 180 degrees, sandwiched between the ground and his upper back.

“Guess we got off lucky,” said Janet. “Come on, let’s not wait and hang around to see if any of the other stick the landing.”

Clara started to nod, but quickly stopped when colorful spots start dancing in front of her eyes. Janet grabbed her hand and they hurried off. Clara tries to ignore the strange sensations she felt as they ran along. There was the feeling of something moving below the skin on the back of her head. The smell of laundry detergent. The sound of ducks quacking. A sudden memory of the first time she rode a bike. As soon as they were safe, she should probably get this looked at.