Melanie climbed across the rim of the ceramic bowl. It meant pulling herself up as if it was a wall, then swinging her legs over the rim, before she let herself slide on the smooth interior until she sat down inside. From there, all she could see was the ceiling and her brother's face.

"Do you think ol' dragon is secretly watching us when we are in the lab alone?"Melanie asked. The voice of the little vixen sounded oddly squeakish in her brother’s ears. Which might have had something to do with the fact she was currently less than two inches tall, about the size of a small mouse.

Marik thought a bit. "Well, he certainly could, but, why do you think so?" he asked grinning. It was an amusing thought, their master secretly watching all their shenanigans while they were supposed to be studying. He gently picked up the bowl his sister was in and walked over from the table to the couch, where he would be more comfortable.

"Well, it's just a feeling. I know he's sorta overlooking what we do as long as we don't neglect our tasks, but lately the tasks themselves are a bit... dunno... it feels almost as if he wanted to encourage us to do...  naughty things."

Marik had to pay close attention, it seemed his sister wasn't only smaller but also talked quicker, now that she was a miniature of herself.

"Well I dunno, this for example, study the effects of a simple voration spell... It's not like he TOLD us to do it this way, we might as well have cast it on a plant, and then give it flies and study that, or something boring like that... Maybe it's just your naughty fantasy jumping to conclusions because you immediately wanted to test this on ourselves..."

Melanie shrugged. "Maybe you're right. Anyway, let's get started shall we? Let's do... 30 seconds on the first try. Play it safe. Just have me go in and right back out, to see how that works." the vixen instructed.

Marik placed the bowl between his legs on the couch. His cock, larger than his sister right now, hung over the rim of the bowl, throbbing and erect. It also felt ... hungry in an odd way. Probably the effect of the spell they had cast.

Melanie sat up, then stood up, carefully approaching his tip. Hesitantly she reached out and touched it. It twitched, but no more than usual, considering her brother’s state of erection. Marik smirked and reached for his cock himself, bending it down a bit so she could reach easier.

"Well, it's not jumping to grab and eat me or anything." Melanie observed - almost disappointed. "Do you feel anything?"

Marik shook his head. "Your touch feels completely normal, but I do have a slight urge to grab you and stuff you in. Could be a spell effect, but maybe it’s just me..."

Melanie giggled.

He reached into the bowl with his hand and she climbed onto his fingers. She was so light, Marik barely felt her weight. Like a little bird or a mouse. For a second he considered sticking her in his mouth, but that would have invalidated the experiment.

"I'd guess it's probably just you getting excited. OK, let's not rush things, slowly and carefully, tell me if anything hurts and I'll stop,” She instructed.

Marik's cock was now right in front of her, as he brought his hand in front of his member. She could have embraced it with both arms and rubbed her whole body against it, which he would certainly have liked, but she was more curious about its ability to swallow her whole.

Marik gasped for air and tensed a bit as he felt her tiny fingers grasp the sides of the little hole at his tip. His other hand clenched the couch, but he did not move - although the urge to grab her and shove her in became a lot stronger now.

Melanie pulled the opening wider, surprised at how pliable his cock was. "OK, this is new. Let's see if you can take me...". She was sitting on his fingers, right in front of it, her footpaws aligned with the now widened opening. She slowly wriggled herself closer, while her hands kept the opening wide enough to ease her feet in.

Marik clenched his teeth. It became hard to hold still. "That.... tickles!" he pressed, his whole body tense in his attempt not to move. "Hurry, go deeper. Huuuhhhhhh!!"

Melanie didn't wait for a second request and pushed her legs in, up to the knees. Marik apparently liked that. She could feel his swollen cock meat throb around her calves, but its inner tube felt silky and smooth. "Feels good?" she asked.

"I really wanna just jam you in as deep as I can." he admitted. He urged for the sensation. The teasing was almost unbearable.

"Do it!" Melanie suggested, grinning.

Marik closed his fingers, which had previously supported her around her midsection. With the other hand he grabbed his cock for leverage, then he gently pushed her in.

"Mmmmhmmm." Melanie enjoyed the sensation as her legs were pushed in. She now felt his tight tube constrict them together, while his cock swallowed her upper thighs, gently squeezing her.

Marik moaned, then adjusted his grip, as he felt Melanie's feet and legs inside the shaft of his penis. He grabbed his base, readjusted his grip to support her back and shoulders without squeezing her too hard, then pushed again.

Melanie watched in curious awe how the opening in his cock widened to slip over her hips. She sucked in air herself and let out a tiny moan as her own sex vanished within his cock. Her feet now felt a bit of moisture around them as they followed the curvature of his cock, deep down in his shaft. It felt a bit slimy, probably a drop of precum that welcomed her.

"This is so odd," she observed.

"Feels good though," Marik told her with a smile. "Ready to go deeper?"

Melanie pur her tiny hands left and right of his cock tip. It was hard and throbbing and warm, and somewhat soft. She could feel how his flesh was stretched to engulf her. It moved slightly as he pushed again and her widest part moved deeper. His opening shrunk back and squeezed over her midsection, swallowing her bellybutton.

"It's really eating me. I wouldn't have thought I'd fit," Melanie observed, as she slid in all the way to her breast.

"This feels amazing. I think I wanna do this more often," Marik confessed.

Melanie smirked. "Looking forward to it. I have a feeling we will do this a couple of times today until we have conclusive results. Unless you manage to digest me in 30 seconds or less."

Marik giggled. "As much as I like a challenge, I don't believe it's going to be that fast. I'm hoping for more fun. Do you feel anything yet?"

He pushed her a little bit deeper, eliciting a moan from his sister as her vixen boobs slipped in and the cock now had her all the way to her shoulders. They still were only B cups, but his silky cock skin sliding over her sensitive nipples apparently felt really nice.

Melanie wriggled her toes, which in turn forced a moan out of her brother. "Nah. It's a bit wet and slippery around my toes but I'd say that's probably just your precum. I bet I'm going to take a spooge bath in there."

Marik took a few deep breaths. "Yeah, I have to concentrate not to cum you back out before you're even in."

Melanie giggled. She felt a horrible joke coming, but she didn't want to ruin the opportunity for her brother. She knew he wouldn't be able to resist it.

"I need to push you by the head. That might be a bit uncomfy." He warned.

Melanie shrugged. "Don't worry, I'm not made of pudding - yet."

She felt him press his thumbs on her head between her ears, pushing gently, but firmer and firmer. She felt her shoulders getting pushed in, and allowed her arms to bend upwards. The cock-mouth widened a bit as she slipped in all the way to her cheeks.

"See you later..." she told her brother.

He now realigned his cock so he could see her head while she slipped. "Sure, 30 seconds from when you're all the way in."

He pushed her deeper, and Melanie's head entered her brother's cock completely, with his thumb now touching the opening. He probably could have pushed his thumb into his own cock if he wanted, but her arms were still out. One little hand gave him a thumbs-up gesture.

Melanie felt the silky skin slide over her head, past her cheeks and ears. For a second it went dark, as her brother’s furry thumb blocked the light. But when he removed his hand, she could see his face through a narrow tunnel between her arms. She gave him the thumbs-up, then felt him gently take her arms and push her deeper.

The deeper she slid, the more easy it seemed to become, as if the tube was more flexible down there and more eager to consume her. It was also more slippery. The gooey precum had now covered all her legs and she could feel the moist sensation in her crotch.

She blushed and flexed her legs. By now she wished she had kept one of her arms down between them, but the tunnel was too tight to correct that now. She'd know for the next round, she determined with a smile.

A sudden pressure on her face told her what her brother was doing, He was grasping his cock and clenching, working and squeezing her deeper. It felt ... kinda nice. The silky flesh slid past her fur without causing discomfort, while her entire body was forced to follow the curvature of his cock. It was hot, and around her feet it was even hotter. For a moment she wondered if that meant she was already being digested, but it was probably just Marik's body heat as she took a detour through his prostate, before she'd be pushed in his balls proper.

She felt Marik tense and moan as her feet and calves were forced through that tense and wet section. She could almost feel how his cum welled up all around her to ease and lubricate her way down. Her midsection bent, while Marik now grasped the base of his cock to force her all the way in. He could feel her hips squeeze through his prostate, and he moaned and panted from the intense sensation. Then he felt something poke inside his scrotum. It was his sister's legs as she completed the short arc through his inside to settle in his ballsack.

Melanie felt the flexible and stretchy skin against her toes. It was accommodating and tight at the same time. It forced her to bend her legs and then sit down, as her hips, midsection, and finally her chest squeezed through the very wet tightness of her brother's prostate gland. She could only imagine what he was going through. He was tensing and shuddering, and the moans she heard from him were a good indicator.

Finally her head went through. Seminal fluid was smeared around her head, into her fur, nose, and ears by the gland that produced it. She licked her nose clean of the slimy goop, as she slid all the way down, where her body curled into a fetal-like sitting position, weighing down one of her brother’s orbs.

"Ooooh sis, I can feel you enter there! This is so... intense!" he commented from the outside. He had one of his hands under his balls, supporting the sudden weight of his sister’s squirming form he felt slip and curl in there.

"All the way in? OK, 30 seconds from now, counting..." Marik announced. He hit the large clock on the low table in front of him.

Melanie moaned. She rubbed the spooge from her eyes and licked her nose clean, then opened her eyes and took a breath. An overwhelming smell of her brother’s jizz invaded her nose. It was pretty dark, but a little bit of light tinted everything in a reddish glow through which she could see her own silhouette. Darker shadows told her where his brother's cock and paw were.
There was a bit of air to breathe. Not much, only what had come down with her. The slide also had her covered thoroughly in his seed. Everything felt sticky and goopy, but so far she didn't feel like he was digesting her. It was just ... messy.

"You OK in there?" Marik asked, concerned. "20 seconds left."

His sister brushed her paw over the inside skin of his balls, which now were hollow cavities ready to accept anything he shoved down his cock. They felt sticky, like everything else. She stuck her finger in her mouth. It tasted salty. Like cum, but not sour or acidic.

"I'm fine. Just horny!" she replied. Her nipples were rock hard and covered in jizz. She started playing with them, moaning slightly.

"10 seconds. Ready to come out, sis?"

Melanie's grin almost reached from ear to ear. "Oh yeah! I'm cumming..." she moaned. The pun simply too unavoidable to resist it.

"OK, let's see. I'll try to give you a push from below. Here we go..." Marik announced, placing his hand firmly under his balls. He could feel his sister in there, her bum, her legs. He silently counted to zero, then pushed her upwards. At the same time he started stroking his cock frantically in order to get himself to cum.

Melanie felt her brother tense and heard him grunt, as her world started shaking rhythmically. She assisted the work as much as she could. Her hands searched for the opening she had come from. She tried to slide them into it, aligned such that her brother pushing from below would get her to slide out.

Marik moaned as he felt her paws once more push their way through his prostate. Melanie felt a lot more liquid pouring on them and back on herself through her brother’s semen-tube.

Marik tensed and moaned. His strokes became faster and faster. "Here goes nothing..." he moaned, straining. "Ugh, sis, my poor prostate, what are you doing....." he complained as he felt her head force his way through the sensitive organ. It was too much, he tensed and felt himself cum.

Everything around Melanie tensed and pushed. The air was forced from her lungs and strong muscles squeezed her. She was also pushed from below, and suddenly she felt herself getting squished forward. Once her shoulders were through the tight inner parts, it got easier and she felt herself slip through - accelerated once more, as her hips also had made the passage.

"Whoaaahhh..." Marik groaned. With his next stroke, a squirt of cum splashed out of his cock. It missed the bowl and went on his own legs, but by then he had realigned himself and pointed his member at the bowl. He felt Melanie slip out of his grasp on his scrotum, just as his balls tensed up for a massive ejaculation. Something strained his urethra wide and quick. His cock widened from below, as his sister was pushed through it.

With an even bigger squirt of cum, her hands and arms sprouted from his cock. He had to release his stroking hand to allow her to pass through. And with a mighty shudder, he felt her slip out and into the bowl with a messy flop - followed by even more cum that rained down on her.

"Uuuuugh...." Marik moaned, and stroked his member to squeeze the last ounces of cum out of him and into the bowl. "Whew, that was intense. Sis?   You alright?"

Melanie had her eyes closed. Her face was covered in cum. She could only blindly feel for the sides of the bowl - now all sticky and slippery. She tried to breathe but a wad of cum in her nose made her cough and sneeze. Only once she spat that out, could she take a deep breath.

"Yeah...hah.... Wow!.... That was tight...." she commented. The vixen tried to wipe the cum out of her face until she could open her eyes. White, creamy jizz covered her fur and made her stick to the bowl. It also stuck her limbs and fingers together like slime. She blinked, then looked up at his cum dripping member looming over her. "I'm fine. Just have your jizz all over me,” she said grinning. "How was it for you?"

"Intense!" Marik answered. "Although, squeezing you through my insides... that was kinda painful. Felt a lot better on the way in. I guess my balls would rather keep you inside until you are all jizz." He gave her a weird look. "I also kinda wanna stuff you right back in. Cumming you out didn't feel really satisfying yet, like... dunno, cumming too soon and wanting more. Are you ready for another round? I think we can keep you in a little longer."

Melanie giggled. "Yeah, I guess, it was kinda nice in there. Thirty seconds didn't do anything to me. I don't even feel tingly. What do you say? We skip over the one and two minutes tests and try five?"

"Do you have enough air in there?" Marik asked, concerned.

"Way ahead of you. I have a spell ready that gives me some breathing air. Not too much, I don't wanna hurt your balls. But I'm tiny, I don't need much," she giggled.

Melanie stood up once more. That way she could reach Marik's cock, but also shake off some of the goopier wads of cum that stuck to her arms. She brushed them off, then took a hold of his penis.

"Oh sis, that feels really nice. Your cum-soaked paws feel really nice and slippery."

Melanie giggled. "Yeah, but I can't really get a hold of your cock, I'm slipping. You know what? Stuff me in head first this time!" she demanded, and stuck her hands into the mouth of his member.

Marik gasped. That felt even nicer! When he reached for her, she nearly slipped out of his grasp, lubricated as she was, but then he closed his hand around her hips and legs and pushed her inside.

Melanie giggled, then took a deep breath and dove in with her head between her arms. The cock ate her eagerly. She slid right in with ease. One push and she already felt his flesh all around her down to the waist.

Marik of course couldn't resist wriggling his finger under her tail, between her legs. She was well lubricated and wriggled her rump until she felt his index finger somehow find its way into her. She moaned. How could it possibly fit, small as she was? But there was no mistake, his wiggling finger-digit was penetrating her snatch, and by the goddess, that felt good!

Marik was surprised too. He tried to push deeper, but Melanie slipped right in. He ended up with his finger inside his own greedy cock, right between her legs. He moaned at the sensation, then clenched his other hand around her.

Melanie felt the pressure. It wasn't much, but slippery as it was, she felt herself squeezed through the tube, deeper into him, while his probing finger slipped out of her and stayed behind.

She was thoroughly coated in jizz as she was pushed through his prostate one more time. She curled into his balls with her head at the bottom, while a shudder of pleasure ran through her brother. Apparently IN felt even better the second time around, now that her whole body had been thoroughly lubricated.

Melanie squirmed around in his testicle until she was once more sitting comfortably, then she tried to get the jizz out of her face. There seemed to be a lot more cum in here with her this time, and it took her a bit to find an air pocket. One small spell later and she had enough headspace to take a deep breath and clear her eyes of salty jizz.

As far as liquids in the eyes went, her brother’s wasn't the worst. It didn't burn at all, but it covered her face and made everything white.

"You OK in there? Four minutes forty five seconds left." Marik announced.

"I'm great!" Melanie's squeaky voice responded. "It's a lot more goopy in here this time around, I think I'm going to have some fun,” she announced, grinning. Then she leaned back in the tight confines and spread her legs. Her cunny really urged for attention, now that Marik had somehow had his giant fingertip in there. Melanie found her snatch and easily dove all her fingers in. Her other hand went for her breast.

Marik watched the clock, while he felt for his sister with the hand on his nuts.

"Kinda jealous now. Wish I was in there with you..." he told her, smirking. She was obviously having fun.

Melanie moaned. Her little chamber was gurgling with slippery sloppy noises as she pumped her hand out of her jizz-covered pussy. Her other was kneading her breast. There was no pain at all, but all the jizz seemed to have had at least some effect on her skin, if only making her more pliable.
"Your spooge is great stuff! Makes me more stretchy than usual. I have my whole hand in my pussy and it doesn't even feel tight!" her squeaky voice announced to her brother. Important information, since it was part of their assignment after all.

"Noted. Do you wanna come out earlier?" he asked.

"Hell no, having way too much fun!" she answered.  She now had a few fingers in her butt and a few fingers in her cunny and was pulling and pushing herself, which felt awesome. It wasn't until a minute later that she realized something was odd. All the time she had been kneading her breast with her other paw, but the sensation had kinda lost its intensity. It was all too slippery. She tried to up the ante by squeezing her own nipple between two fingers. She could swear she was pressing with all her might, but her nipple only felt moderately excited. As if there was still a layer of jizz between her fingers and er breast. She squeezed harder, but her nipple just slipped from her grasp with a squishy sensation.

Odd as it had felt it was kinda nice. She tried to do it again, but her fingers somehow couldn't get a hold of it.

Melanie brought her hands up in front of her face so she could look at them. They were covered in spooge. Big wads of cum oozed from them and still connected her hand to her chest. The sensation was really weird though, almost as if her fingers were stretched and still touching her chest.

Melanie panicked a bit. She tried to slip her other hand out of her snatch, but the sensation was just as odd, almost as if her fingers - or parts of them - remained right where they were and were stretched into thick oozing strands of cum between her snatch and where she brought her hand at the same time. She was softening. And it had happened fast!

"Three minutes thirty!" Marik announced.

"Ma.rgglb." Melanie had to spit out some jizz that covered her mouth. Spitting that felt odd, it pulled on her lips. "Marik. I'm  mmmmm ..mmbelting... gemme out!!" she managed to yell, alerting him.

"OK, cumming you out at three thirty!" he announced, and started stroking his cock.

Melanie felt herself squished tightly from all sides as Marik pushed his balls to get her out. A moan escaped her as she once more tried to align herself with the opening. Her fingers - or what was left of them - could barely get a hold on the tight hole, and her arms felt soft and weak. Still, the pressure from below squished her in, arms first. She tried to stand up, but her legs could not find footing in the jizzy, slippery mess all around her.

"You feel kinda soft in there..." Marik sounded concerned. He redoubled his efforts to get off, but the second time in a row wasn't that easy.

Melanie meanwhile got her arms and face drenched in fresh cum from his prostate as she was pushed further up. She slipped her arms back and forth in the hope of giving her brother some extra stimulation to get him to cum her out.

Finally, Marik moaned and tensed. Melanie felt her upper body squished and propelled forward. Once more she shot through the tight passage inside her brother and into his urethra. That meant she was almost out. She felt Marik's prostate clench around her midsection. His balls clenched around her legs, but her hips somehow didn't get pulled through the same way as before. Moaning, she felt her waist stretch long in a weird sensation - not unlike how her fingers had felt when they were oozing off her snatch.

Marik could feel his sister travel up his member. Much more slippery than last time, but it also felt much better. Much less of a strain. Though somehow, he still felt pressure on his prostate. He gave his ballsack a clench, finding it still surprisingly full. He felt something move, almost as if Melanie's legs were still back there. That couldn't be. She was bulging out his cock, almost out already.

Melanie finally felt her hips getting squished through the tight part as well. A split second later, she ejaculated out of her brother's cock and dropped into the bowl they had kept for just that purpose, with a very wet sound and sensation.

Marik moaned as he came. A massive load of cum escaped his cock, together with what was undoubtedly his sister. She splashed into the bowl. But he wasn't done, his cock twitched and sent another load of cum on top of her - with another slippery goopy chunk in it,to his surprise . It slid out, kicking in such a way that it was undoubtedly his sister's legs. They landed with a wet splat on what of Melanie was already in the bowl.

Marik's cock kept twitching, and his balls kept pumping, but all that came out was liquid cum in smaller and smaller spurts until only a few last drops oozed into the bowl.

A bowl which was now filled almost to a third with white cum.

"Mel? Melanie, are you OK?" he asked and bent forward to examine the contents closer. For a second he feared she had already melted beyond recognition, but then he saw movement. Melanie's arm was so goop-covered he couldn't even make out her hand, but she was somehow trying to grab the rim to pull herself out. With the other she tried to clear her face. Her features emerged, although somewhat softened.

Melanie rubbed her eyes until she managed to open at least one of them. Her lips didn't really follow her commands as she tried to open her mouth to speak. They were stuck together, glued by cum she couldn't seem to get off. Finally her mouth opened, although a goopy string of cum still connected her upper and lower jaw right in the middle.

"I... aaah.  Whew.... I'm OK.... I'm OK... I think... I feel weird. What do I look like?" She tried to look at her hand, flex her fingers, but there was only a twitching sensation under a lot of cum. Her entire lower arm seemed to droop a bit under its own weight.
                   
“Like a little slime monster made of cum,” Marik told her, smirking. “What happened to your legs? Can you feel them?”

Melanie looked down on herself. Her lower body was submerged in cum, but there was a stirring motion inside the bowl.

“Kinda. I can move my legs too, but I’m not completely sure about my feet."

Marik looked puzzled. "Can you stand up? Cause ... it felt to me like you came back up in more than one piece."

"Trying ..." she answered. More motion could be seen inside the bowl as Melanie tried to get her legs under her. "Getting cummed out the second time felt really nice though. Kinda squirty."

"Oh yeah." Marik agreed. "Need a hand?"

Melanie tried to turn herself around. She managed with quite a messy flop, which made her moan slightly. But she made no progress in the attempt to stand up. She nodded, grunting.

Marik reached into the bowl with his right hand. The liquid was sticky, but he finally got a grip on his sister. A moan escaped her as he gently started to lift her.

"Wow, you feel really soft and squishy." he told her. Marik adjusted his hold to support both her lower and upper body, so she could sit on his palm with her back supported by his fingers. Cum dripped off her body and pulled oozing slime-strings as he lifted her higher. It was kinda hard to tell where his sister ended and his jizz began.

Melanie's chest heaved with her breath. Her breasts were almost featureless. Little white orbs, glistening as if they were made from jelly. Her belly, it looked stretched and drooped. And when he moved his hand, her entire midsection wobbled as if he had one of these slime toys on his hand.

Melanie moaned slightly at the sensation. Marik couldn't help but curiously poke his sister with his other hand. His finger touched her torso just below her breasts. His fingertip sunk into a layer of cum. He felt the sticky moist, slippery sensation, but he could also feel her breathing and her heartbeat. She was warm, almost hot. The lower he went, the more his finger sunk in, until at around her belly button he could feel the slightly numb pressure of his own finger in the hand supporting her. Right through through the slippery slime that was still somehow held together as his sister's belly.

Melanie groaned and arched, trembling. Marik had trouble imagining how this would feel for her, but judging from her response it was a pretty exciting sensation. Further south, approaching her pubic mound, which was as jizzy white as the rest of her, there was more resistance. Some part of her hip retained the consistency of soft rubber. Squeezable, but still with some resistance and ability to stay in shape. That, however, was only deeper inside her; what must have been her hipbone. On the outside her skin had the same sticky-oozy touch as if he was touching a wad of cum. Wet, warm, slippery.

Except that a wad of cum would not normally spread its legs and rub its hip against his finger while moaning. Marik grinned and wriggled his finger a bit, dragging it further south in between Melanie's legs. He couldn't even tell if she still had a vagina, as everything was covered by white slime, but his fingertip found a soft spot and wriggled deeper, inside her softened-up bottom.

Melanie arched, although she was unable to really lift her belly of his hand. But she stuck her jiggling white breasts nicely skywards and trembled.

Marik stuck his finger a bit deeper into his miniaturized sister and wiggled it, which drove her wild. Her legs kicked, and he expected her to shed drops of cum all across the room any second. With his finger firmly inside her, he pulled it and Melanie's hip with it, as she was completely stuck on his digit.

But her upper body remained just where it was. Her waist elongated and stretched. Melanie grabbed her jelly-boobs with what was left of her hands - Marik couldn't see individual fingers but that didn't necessarily mean there weren't any - and moaned in almost gurgling squeaks. It sounded cute.

He stretched her a bit longer. It was quite clear now why he had felt what he had when he cummed her out. Her midsection really had lost all solidity. Yet it wasn't completely liquid either. Like slime, she stretched, oozing and elongating. No wonder she hadn't been able to get up. There was no way she could support her own weight if her body had that consistency. He doubted her legs would be able to support her either. Maybe in microgravity, but not under one G.

Marik had a new idea. He closed his hand around Melanie so he could support her bottom enough to slip his finger out of her. Pulling it out apparently felt even better than pushing it in: she moaned and shivered in mindless bliss, which gave him the opportunity to look at the hole that briefly opened between her legs before it oozed shut again. Her insides were the same colour as her outside. Cum-White.

He now gently took Melanie's hips and legs in one hand, while her upper body still rested in his other. Then he pulled - gently of course. 

"Whaaaa... what are you doooooing.... Uuuuuuhh...." Melanie shuddered at the weird sensation of getting stretched longer and longer. Her belly and waist drooped down like a strand of slime, connecting her torso to her hips in a slimy, oozing arc.

There was a bit of resistance. Not much, just enough to tell Marik her midsection wasn't entirely liquid jizz. Nevertheless, he was sure if he pulled only a little bit further, she'd come apart. She might even come apart under her own weight if he just let go. Instead, he brought his hands back together and watched the cum bridge that was his sister's midsection shrink and widen like the slime it was - although it now sagged a bit more than before.

"Don't.... Don't pull me apart please! I ... I still want to keep my snatch, it feels so goooooo oh fuuuuuuck!!!!"

Marik had brought his sister closer to his face. He stuck out his tongue and gave Melanie a lick between her legs. She tasted salty and musky, just like his own cum, but there was a hint of her own taste in there too. He licked, and quite a few drops of jizz remained on his tongue. He savoured the flavour, then gulped it down to lick again.

Marik had no idea what would be underneath the jizz if he licked it all away. Maybe nothing. Maybe he could keep licking the cum off his sister until there was nothing left of her. But for now she didn't seem to complain. She gladly parted with the liquids he savoured.

At least between her legs the taste changed, tasting more like Melanie's pussy juices and less than his own jizz. She also changed colour. Whimpering and shivering, her hip seemed to become more and more translucent.
"Hey Mel, I think you're still transforming. But now you’re turning into your own jizz, not mine."

"Don't...... don't stop...." she begged. "I'm cumming... I'm cumming, I'm cummmmmmmmm!!!" she moaned in squeaky sounds, convulsing.

He could feel with his tongue how her consistency became softer as she climaxed. She couldn't keep her legs up and kicking anymore; they drooped down on his palm. Her hips were getting too soft to give them any support.

Marik nearly came without even touching himself, as he licked up the vixen jizz that his sister was turning herself into unintentionally - though not unwillingly.

She could feel how he licked her up, reducing her more and more. One firm, gentle lick across his own palm, and her legs twitched one last time, then became entirely detached like two goopy wads of semi-liquid cum on his palm. Her tail - little more than a thick strand of salty jizz, came to rest on his tongue. He licked up the rest of her midsection - butt and everything - as it turned into juicy, slimy, sweet vixen cum. He closed his mouth, sloshed it around, and gulped.

Melanie's chest and face seemed to have liquified more throughout her climax, but her breast was still heaving as she tried to catch her breath with a wide open mouth.

"I... aah.... I ... you..." Melanie's head was spinning from the sensation of cumming herself apart and getting licked up.

"You OK? Did that hurt?" Marik was slightly concerned, although it was mostly scientific concern. He knew she wouldn't mind, and even enjoyed a little bit of pain sometimes.

"Nah... no. No pain. That's... that's the thing. It doesn't hurt at all. I didn't even notice how I started melting... It all feels normal, just more goopy. Even.... even now..."

"You can still feel your legs?" he asked, confused.  

Melanie concentrated. She tried to move them, but there was no movement.

"No... they're gone... but that last lick felt so awesome! Did... did I taste good? I can only taste your cum..."

Marik smiled at her. "Nah, it was your own jizz. You turned to your own cum down there. Really sweet. Not as salty."

"Are..." she seemed to blush although he couldn't really tell, it was just her voice. "Are you gonna lick up the rest of me too?"

"First we should finish our homework. I think we can say digestion into cum happens in less than five minutes, but more than half a minute. The process is contagious and sped up by arousal and climax," Marik summarized.

"Yes, I think so. I only really started melting once I started playing with myself in there. I guess if I had came in there, that down there would be all that's left of me." She pointed at the cum filled bowl.

"Are you still melting or can you stop it?" Marik asked.

Melanie bit her lips, which looked weird because they were half liquid and temporarily fused together.

"I think I could if I stopped being horny. But I don't want to! I want to know how it feels to turn to jizz completely. Come on, lick me! Take me in your mouth and make me cum!" she dared him, stretching out her hands at him.

Marik giggled. He opened his mouth and gently took Melanie's belly inside. It was already almost liquidized. She had partially soaked into his fur. On his tongue and mixed with his spit, he could literally drink her up, though her breasts only an inch further up her torso were still cohesive and heaved with her excited breath.

"Oh fuck, that feels amazing! Do it! Take me into your mouth and make me melt! Drink me! Make me cum and drink me! Oooh!!!!!  MMmmmmmmmmhhh"

Marik did exactly what she demanded. Slurping up her tiny body, he took her slippery form onto his tongue. She tasted like he expected: salty and musky. Yet despite her slippery form, he could feel her squirm and flex, still very much alive and enjoying herself.

Melanie moaned as she felt that tongue under her back. She was already all the way in his mouth and could see the top of his maw above her. Then his jaws closed and he started sloshing her around. She used a flick of his tongue to turn around, then wrapped her arms around it for support. It felt so weird! Everything was so slimy and slippery, yet it was really herself who was slimy and slippery. What was even weirder was that less than half of her was left, yet she didn't feel anything amiss. Not once had she felt any pain or discomfort associated with her melting. On the contrary: every bit of her that finally squished into liquid - like her nipple had at first, or later her hips under her brother's tormenting tongue - had felt like a little sensual explosion. But there was no sensation of loss or phantom pain. Her body felt 'normal' - unless she tried to touch or move the bits that were no longer there. It made it surprisingly hard to assess what of her was still remaining and what wasn't. Her mind painted a picture in her head of a complete little vixen riding on that tongue, humping it. But in reality it was only her torso left. She knew that, but it was a conscious effort - and a turn on - to make herself aware of how little was left of her.

Her brother's spit and her own arousal together hastened her dissolving. She was sliding back and forth on a layer of slippery cum. It was what her breasts had dissolved into, and it felt heavenly. She dug her snout into it, feeling herself sink in like in soft molasses. That was the sensation at least, but her eyes saw what had really happened. Her nose and snout had squished into a shapeless mass that stuck to her brother’s flesh. It only *felt* as if she was sinking.

Her moans stopped, as she had no mouth anymore to moan with. What little was left of her body was pressed and rubbed against the rooftop of her brother’s maw, where it squished apart into slimy cum that stuck to his tongue and gums.

Melanie felt her chest being squished to liquidness with the same ecstatic sensation she already knew from her other body parts. Her head, too. She saw little sparks as her eyes popped into liquid cum inside her brother’s mouth. All that was left of her turned to liquid the moment she came. A climax unlike any other she had ever felt. She was cumming... and cum was all that was left. A cum explosion.

For a little bit, she drifted in the afterglow. Her body was liquid, but the liquids were still coherent enough to give her some bodily sensation as she was sloshed around in her brother's mouth, mixing with his spit. She felt him squeeze and slosh her, and then she felt him gulp.

One gulp. There was about half of her left.

Another gulp. Marik still tasted saltiness on his tongue, along with a sweet note that told him his sister had added her own flavour to the mix.

Melanie's thoughts became incoherent. There was not enough of her left to call it consciousness, but too much to call it oblivion. She mixed with her brother’s saliva and became more and more diluted.

Then he gulped again, and all that was left of his sister was a bit of a naughty aftertaste.

He leaned back and started stroking his member. Remembering her last cute little blubbery  squeaks. He tried to imagine what it must have felt like for her. Moaning, he came himself, spewing out some of his own pent-up cum.

The fox sat a bit, panting. He'd have to ask her later, and ... maybe ... exchange roles. Being liquified inside her womb had to be an awesome experience, while she'd rub her belly and pretend to be pregnant...

Afterwards he cleaned up the mess, completed his notes and decided it was time to reform his sister.

...

A few hours later, the siblings had gone through a few more rounds of experimenting. The homework was long complete, everything noted down. That, of course, was no reason to stop there.

"OK, but we have to cum at the same time, or it won't work." Melanie reminded her brother.

Marik moaned. He was hilted all the way in her, and not too far off. Though he knew his sister well enough to know how to give her a jumpstart. He started giving her neck little love nibbles, breathing his hot breath through her fur.

She tensed, moaned, and he could see how her fur stood up as she was growing goosebumps underneath.

"Oh... oh yeah... that's it, almost there..." her legs tensed up and started trembling. He had his paws clenched into her ass cheeks and they started feeling somewhat slimy. Only a tiny tiny bit more.

 "I... I'm... I'm about to ..... I'm cumming!!!!" he moaned.

He hilted and felt his loins clench. What a powerful rush! He came so hard that he heard his ears ring, spewing cum into her, more and more. It didn't seem to stop. He could taste cum on his lips. He was kissing her and her face turned translucent and goopy, just as she arched and shivers started running through her body.

But so did he. His blissful moan turned into a gurgle as he sank into his sister. His hips were still humping, trying to fill her with his seed, but they lost shape as they sunk deeper. It felt like sinking in mud.

Melanie arched under him, but the arch didn't hold. She collapsed to the sheet underneath and soaked them in cum. The vixen felt her body explode in blissful ecstasy, losing all shape as she came. As a last stand, a last attempt to sustain the pleasure and draw out her orgasm, her mouth and her brother's shared the same physical space. Liquids merged, melting, yet still they felt and tasted each other.

Then gravity won. Melanie collapsed under the weight of her brother's liquified body. They merged, effectively. White cum mixed into translucent cum in a splash of liquid that flattened and expanded in all directions like a water balloon that hit the floor too hard.

After everything had come to a rest, what remained was a puddle - but a puddle with emotions. Both of the siblings were basking in the formless, shapeless afterglow, much closer to each other than they usually were. They couldn't hear each other's thoughts, mostly because they didn't have any thoughts that could be put into words, but they knew they felt the same. And it was warm and sloshy and awesome.

They remained like that until they got cold and the puddle turned thick and gross and started to dry out. With that came slight discomfort, and the siblings minds who had just been lost in goopy bliss slowly returned to a more coherent state.

"Sis.... Sis?" Marik thought. "Sis, it's starting to get itchy. You're all over me."

Her answer was in his mind as much as he was in her mind. They were effectively one. "Very funny. You're all over me, too. Why and how is the itchiness my fault?"

"Because you are girl cum, and you dry in faster!" came his answer, giggling.

Marik actually tried to somewhat pull himself together and separate from his sister. But the puddle of drying liquid didn't even slosh. There was just a weird, pulling sensation all over their shared substance. It was about as effective as trying to pull oneself out of mud by the hairs, and felt about as pleasant.

"Stop that, this won't work. We are too dry already." His sister reminded him. She felt the same after all. "And we have soaked into the sheets."

"That's not my fault, you chose the couch. And you were bottom."

A wave of anger rose in Melanie, before she realized he was just pushing her buttons again, while his mental self was grinning all over. 

"Don't worry, next time I'll be on top. Can't wait to do this again" Melanie responded.

"Oh yeah. First we need to figure out how to reform and clean up this mess."

"It's your turn with laundry. How about you levitate the sheets over into a big nice hot tub?" Melanie asked.

 "Won't work. hot water makes cum clot and more sticky. We could try the washing machine on a cold rinse cycle"

Melanie wasn't convinced "Some of us would stay in the sheets and the rest would wash down the drain. We might need to use the spell."

"Well, that's always an option." Marik agreed. "But that will only trigger well after we finished turning completely into a dried in crusty cum stain. And we still would have to clean the mess.  You know what? We should make this a contest next time."

"How?" Melanie asked curious.

"Same spells, but I try to turn you into a cum-splosion before I cum myself,” he suggested with glee.

Melanie's voice giggled in their thoughts. "You are so on, bro, you are so on. Loser's got to get the winner off afterwards, and then clean up afterwards."

"Deal. I could play that every night!" Marik thought. "Damn, but this is really getting itchy. And we can't move..."

"Think of it like bondage. Call me weird, but being a stain of dried in cum actually makes me kinda horny again."

Marik laughed. "Then how would we 'get you off'? With a steam cleaner?"

Melanie moaned at the thought...