Chapter 5: The Joining

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Contains Piss, Scat, Shit eating, Body merging/absorption, M/F

When Jake woke up, everything was different. The first thing he noticed was that he couldn't move his arms and legs much. In fact, his legs were connected to the back of Liana's legs down their full length. And his arms and hands were connected to Liana's sides, where he had been holding her. Jake couldn't really see this himself, but the skin between them was completely continuous and smooth, you wouldn't be able to see where one body ended and the other started.

When Jake opened his eyes, all he could see in front of him was skin. He could see bits of the room they were in to either side of him, but that was about it. He also noticed was that his mouth was feeling strange. The weird thing was that it was somehow connected to Liana's back. Jake tried to feel around with his tongue, but as far as he could tell there was no opening, his mouth was completely sealed to her skin, forcing him to breathe though his nose. In fact, his chest and stomach were also connected to Liana's back, while his dick was still sitting in her vagina. Jake couldn't move far enough to do anything about it.

Jake's attempts to move around woke up Liana, who said "Hi love, you ok?"

Jake actually still felt very relaxed, whether that was from the hormones in Liana's fluid or from the fact that he knew what he was getting himself into, he was mostly fine with the situation. But with his mouth stuck to Liana's back, he had no good way to talk, and instead said "Mmmmm" in a confirmatory voice.

His stomach didn't hurt anymore, but he suddenly did feel his bladder was very full. He couldn't get his dick out of Liana and he had no way to communicate his predicament so he tried to held it for a little while but he knew it couldn't last for long. At some point he just let go inside her, which made Liana perk up and go "Ooooooh", sounding like she was enjoying it. "Don't worry, dear, just let go... it's all fine." Before long the piss started forcing its way back out of her, down his dick and onto Jake's balls, after which it flowed into the bed Jake now realized they were lying on.

After he was done, Liana said: "Mmm, that made me realize I have to go as well." Jake heard a hissing sound as Liana started pissing but strangely enough didn't feel the wetness anywhere. Next, Liana started grunting "Ohhhhh... damn those beans need to come out.... nggggh" and Jake felt something shift where he was touching Liana's lower back, but didn't smell or feel any of her shit. "Ngggh... oh fuck that feels good," Liana continued.

It took her a moment to catch her breath, but then Liana said "Wow... woah that felt strange... but real good."

Jake voiced a "Huh?" because he was confused as to what had happened, but Liana just chuckled and said: "You'll find out soon enough."

Jake quickly felt himself doze off again, and the next thing he remembered was suddenly waking up about half an hour later, because he felt Liana's skin in his mouth twitch, and then it started slowly pulsing. But what really woke him up was the fact that that patch of skin suddenly opened up like a sphincter and delivered a load of piss in his mouth. Jake coughed and swallowed to prevent it from flowing up his nose and felt his dick hardening inside Liana, because after all, piss still made him very horny.

Just as he was done swallowing the piss, the sphincter started pulsing with some more force and he felt the shit Liana had pushed out 30 minutes ago being pushed into his mouth. It literally couldn't go anywhere, the seal of their skins was complete, and very strong. All Jake could do was keep up and swallow as fast as it entered his mouth. It was the unmistakable soft, bitter shit caused by the beans and Jake swallowed it all as he'd been trained to do. He started slowly realizing what had happened: the Joining apparently had created a new intestine from Liana's asshole to his mouth. Somehow, her bladder connected to it as well. That meant that from now on, all of Liana's piss and shit would have to go through his mouth, through his body. Liana's piss would be his only drink and Liana's shit would be his only food.

Jake realized he loved the idea and he'd subconsciously started trusting his dick again.

Liana naughtily said: "Mmmm... I can feel you enjoyed that. Now you know what I trained you for so long. Ahh... ohhhh..."

As they were fucking, Jake realized his stomach hadn't been sitting still either. Knowing he couldn't move anyway, he started emptying his own colon. Because they were lying on their sides on the bed, his shit just slid down his butt cheek and formed a pile on the bed sheet. Both of them certainly smelled this load of shit.

It immediately made Liana even hornier. She started fucking Jake harder, causing him to shift position a bit so that his pile got mushed between the side of his butt and the bed. That feeling made Jake orgasm deep inside Liana, and she came soon after as well.

Jake and Liana stayed in that position for a while. Not that they could do much else. Jake couldn't go anywhere, and with his full weight attached to her, Liana had trouble moving as well. But as Jake's shit started to cool down and the smell filled up the entire room, Liana reached out and pressed a button on the wall next to the bed.

A couple minutes later, Jake heard the door opening and someone come in. They used some contraption that was hanging over the bed to carefully lift the combined form of Jake and Liana up. At some point, the Kbraxi got into Jake's limited field of vision, and he noticed it was a male. A young man, by the looks of it. In fact, the first Kbraxi male he'd ever seen. He did have spots on his forehead just like the females, but they seemed much smaller and less obvious. The male would easily be able to convince people he's a human.

In any case, Jake watched the Kbraxi carefully scoop the remaining shit from the bed into a plastic box, then the male washed Jake's butt, and pressed a button which replaced the bed with a clean one, just like in their old apartment in the colony village. Then the Kbraxi lowered them back onto the bed and released them from the contraption. He walked out, holding the box with Jake's shit in his hands.

When he was gone, Liana explained to Jake that this was one of the ways Kbraxi males prepared for the Joining. They worked as attendants in the Joining Center, getting to see how two people slowly become one, and as a reward for their work - or as part of their training, depending on how you think about it - they were encouraged to take Joined couples' shit, jack off with it, taste it, and so on. The idea was that they got to experience a large variety of different smells and tastes, so that they would be ready for whatever their eventual Joining partner would have to offer. Liana suspected that the males were especially interested in Jake's poop, because his human digestive system was the only one on the planet.

This was Jake and Liana's life for a while. They spend many hours sleeping. An attendant would bring in a huge meal for Liana three times a day, together with a big bottle of water. Jake was surprised by Liana's big appetite and thirst, but figured she was now eating and drinking for two. Of course, drinking and eating that much made Liana's bladder and colon very active. And Jake could feel exactly when Liana was pooping, which would excite him every single time because he knew what it meant for him - his own tasty meal was on its way.

Jake's stomach had gotten really good at getting the nutrients out of Liana's piss and shit, but there was still plenty of waste left after it passed though him, so another regular part of their days was Jake wetting and messing the bed, and an eager male Kbraxi coming to get his shit and clean them up.

Of course Jake and Liana fucked a lot too. They had nothing better to do, and with his dick stuck in her cunt, the slightest hint of horniness spiraled into another hot session for them both.

Soon, Jake and Liana started noticing subtle changes to their bodies, beyond the initial Joining. Tiny changes at first, but they became impossible to ignore after a few days. One of the first things Liana noticed was that she lost control over the sphincters in her bladder and anus. Whenever she felt she had to pee, it just immediately started flowing without her control. It went in a similar way with her poop. She'd feel some pressure, and all of a sudden it'd start shifting into their new Joined intestine.

It still felt great to her, like shitting always had done, she just couldn't control it any more. Not long after, her sphincter muscles actually started being broken down by her body. She didn't really notice this, but she remembered that any unnecessary part of their bodies would be broken down and recycled during the metamorphosis.

For Jake, the changes were larger, but happened slowly enough that he didn't notice them at first. One of the first things that happened was that his limbs got absorbed by Liana's body. He didn't really mind as he couldn't move them anyway, and they were just getting in the way. Afterwards, his shoulders and upper legs just subtly ended in Liana's skin, so that if someone had seen them from far away, he'd look like nothing but a huge bulge on Liana's back.

Around the same time, his face started changing. His nose and eyes started getting attached to Liana's skin as well. Jake panicked for a moment when he woke up one day and noticed he couldn't breathe any more, but then he realized he wasn't suffocating. Apparently their bodies were intertwined enough that she could now share her oxygen with him.

Shortly after, he was in for another surprise. Apparently his nose had joined up with their Joined intestine in such a way that the gases she produced bubbled up into his nose directly. The smell, not diluted by air, was overwhelming. Jake hadn't quite realized how important smell was for tasting things, but Liana's shit suddenly seemed to taste much richer than before.

His mouth seemed to change as well. Jake noticed his teeth shrinking before disappearing altogether. Something changed in his throat, making it much easier for him to just accept the shit and let it slide down into his stomach directly. His tongue didn't change, and the taste of shit stayed as strong as ever. He loved keeping it in his mouth and chewing it, even without teeth, just so he could experience the full taste.

When his eyes attached to Liana's skin, Jake of course turned blind, which scared him a bit. While his eyes were already being broken down by the metamorphosis, Liana told him that he'd be able to see again before long. Jake knew that no matter what he'd be in a good hands, and his eyes hadn't been much use lately anyway, so he relaxed and waited for his next meal.

In the next few weeks, Jake's body changed further by the hour. To the attendants, it looked like the bulge on Liana's back was shrinking and moving downwards. Most features that made Jake recognizable as a person faded. His ears, his hair, the shape of his back, it all became a generic bulge, that ended in a perfectly healthy ass and dick, which was still stuck in Liana.

From Jake's perspective though, a lot more interesting stuff was happening. When his ears disappeared, he lost his sense of hearing, but that didn't last for long. Shortly after, he heard... or felt... a far-away whisper. When he concentrated on it he noticed it was Liana's voice. He tried calling out to her and the voice was stronger. Then, all of a sudden, it was like an overwhelming feeling of love, horniness, and some other emotions he couldn't quite place, were pushed into his brain from the outside. At that point the voice became much louder and he could actually understand it.

"Hey, dirty boy" Liana said.

"What's going on?" Jake asked.

"We're in the final phase of the Joining. The mental connections are being made."

"So... you're not actually talking to me?"

"No... I'm *thinking* to you," Liana thought to Jake. Almost as if it was planned, at that point the connection between their Joined intestine and what was left of Jake's mouth started pulsing, and pushed a soft load of shit into his mouth.

It made Jake horny like usual, and Liana thought out loud: "Wow! I can feel your emotions now. I knew you liked my shit but I had no idea it made you THIS horny." She could also feel his dick getting hard inside her. Jake started fucking her and it was the best sex they had ever experienced till that moment, because they could sense each other's reactions to each thrust and adapt so it was perfect for both of them. Jake learned from Liana that this was only the start of the final phase... things would only get better from here.

As Jake's brain started moving from the part of the bulge that used to be his head, into Liana's body and closer to her brain, their connection got stronger. Jake got his eyesight back, and his sense of hearing, but this time through Liana's eyes and ears. He also started tasting and smelling the food Liana ate, experiencing his first non-shit meal in a long while.

Strangely enough, he didn't lose the sense of smell and taste in his own mouth. Every drip of piss and every bit of shit that passed through it, he tasted. And of course, all the piss and shit Liana made had to go through his mouth, there was no other way.

The sharing of senses worked the other way around too. Liana tasted her own shit in Jake's mouth as well. When that sense first 'switched on', it made her gag a bit. It had been a while since she last played with shit, and she couldn't even remember the last time she tasted any. But she could feel how much Jake enjoyed the taste, and quickly joined him in his enjoyment.

Liana and Jake also started sharing a sense of touch. By the time he could literally feel every single nerve in her cunt firing when they were making love, their sex was more intense than Jake could ever have imagined. It wasn't just him experiencing her emotions anymore. He could experience the way she felt his cum shooting deep into her vagina. And he could feel how much she loved every moment of it. Those days, Jake experienced his first female multiple orgasm. Liana also got a number of new experiences. She loved the feeling of his cum boiling up from deep inside his balls, feel it pulse through the tight opening in his shaft and shoot inside her tight cunt.

The remains of Jake's body started getting smaller and smaller, until one day, the outside transformation was done. Liana looked like a normal woman again from the outside, the only directly observable difference was what Jake had noticed in the older women in the colony village - their faces looked ever so slightly more masculine. What remained of Jake's body now existed smugly inside Liana's butt.

The Joining intestine had shrunk, and his mouth was now directly connected to her large intestine, and to a tube from her bladder. Other than that, his stomach and own intestine had turned into a single digestive sac that got the nutrients out of Liana's piss and shit and then connected directly to his asshole - which was located exactly where Liana's used to be. The rest of his body was his dick - which hadn't shrunk at all - and his balls, which were located such that they tended to rub against Liana's clit a lot.

The final change to their bodies was that they got the ability to withdraw Jake's dick into the side walls of Liana's vagina. This made it easier for his piss to escape, and it was also necessary if they ever wanted to have children. The Kbraxi female reproductive cycle only started after the Joining.

As far as Jake was concerned, he was glad that despite all the physical changes, the remains of his mouth still tasted every bit of shit that passed through it. Liana assured him that those taste buds would stay active for the rest of their life.

And as their physical changes were concluding, so were their mental ones. Jake's brain moved closer and closer to Liana's, eventually migrating through her neck and joining with her own brain. Liana and Jake noticed a gradual change in their thoughts. More and more often, they were both thinking the exact same thing. It didn't feel like any thought was forced, it just felt they were naturally becoming more and more alike.