Somewhere deep in the forest, a vine house was built that camouflaged it, making it stay hidden as it just looked like plants grown on a large rock

Several days had passed, as the process of healing the zombified Catherine was more complicated than Michael anticipated

Initially, he understood his cum had certain lifeforce since he was able to heal Sylvie's hand. He also understood somewhat that his lifeforce would have to replace the cancerous zombie death energy or whatever it was, sucking it out of Catherine and replacing it with his lifeforce

This was the reason he was able to kill the many zombies in Rumalow, by impaling them with vines and sucking out the death energies finally killing the zombies. But it also killed the vines as the energy corrupted them. 

Due to the enormous amount of lifeforce he gained from the alraune, as well as from the centuries old succubus, vampire and veela, plus the strong vitality of the werewolf, his lifeforce was especially potent with life. This also made him irresistible to creatures who absorbed lifeforce

However, unlike Sylvie where the zombie infection was only in her hand and he healed her within moments, for Catherine, her whole body has already became zombified

This meant that he had to somehow spread his seed all over her, inside and out. 

He initially tried simply fucking and cumming into her pussy and anus, leaving her dangerous mouth for last. But even her pussy and anus only turned those areas back to human for a short time, before turning back into zombie flesh!

Her constantly chomping mouth was even scarier as it might bite his cock off, and also possibly turn him into a zombie!

This meant that he would need to cover practically all of Catherine's body, and required him to continuously cut her body open to coat her internal organs, her bones and muscles!

He tried at first, by cutting open her arm and coating it with sperm. But each time he missed a spot, her arm would resume and regenerate to become zombie flesh again. 

As such, he had to resort to cutting her into separate body parts, then coat as much of her internal and external parts of the limb or body part with his cum

Thus, with her main head and torso tied up in vines, he went limb by limb. Cutting open her arms, each finger muscles and sinew coated with cum.

He first started with her right arm. But no matter what he did, he could not completely cover everything as the arm always reverted back into it's zombie state. 

He had to be careful too, as the fingernails could possibly zombify him as well. 

Suddenly, he had a wild idea and built a large bathtub made of vines and filled it with cum as the nymphs helped him milk his penis for the needed amount. 

He started dissecting Catherine's arm, removing the skin carefully, as well as separating her muscle from bone and sinew!

He dumped them into the tub and watched as they wriggled in the cum. Somehow, the body parts could rejoin to their proper linked part, as long as they were close together

As they were in the tub, they automatically wiggled and found each other and rejoined as Michael watched in amazement and helped them along. 

Before long, the arm was whole and was wriggling around in the tub. 

He wasn't certain whether it was because the zombie regeneration was somehow still working, or it was the healing properties of his cum, the arm remained alive even though it was human!

But as soon as it was taken out of the tub, it automatically moved around as if trying to reattach itself to the rest of her body

"Strange, it still acts like a zombie part, even though it's completely human" Michael thought

"But was it human? Maybe it was just in the midst of turning back into a zombified arm" he thought further

However, seeing that it was still human flesh colored, he tied it up and started working on the other body parts. 

The other arm and leg was carefully dissected and placed in the tub, one at a time to prevent any mix-up and he hung the successful parts next to each other, each trying to wriggle their way to each other. 

Then he took apart her torso, dissecting her and dumping her internal organs into the tub. He watched as her heart, lungs, intestines and the rest floated in the tub as he started removing her skin from her soft breasts

He wondered if he was doing the right thing as this seems to be going beyond what was necessary as he rubbed her pussy from the inside out, making sure everything was covered in cum

He dumped her breasts in, now only consisting of fat and muscle tissue, and washed her uterus with his cum before he put the organs back together. As they were not limbs, they could not move, but upon putting them in their rightful places, the organs and muscles healed together as he put them back within her skin! 

Finally, after taking out the regenerated naked torso and attaching her arms and legs, she was nearly complete. 

Her body was gorgeous, but he felt spent after cumming so much into the tub

He took up the final piece, which was her head, and it tried to bite him several times!

Hardening his heart, he started dissecting her head, removing her facial skin and opening up her skull!

As he cut open her skull, he saw that her zombified brain looked dark and decaying as he pulled out her brain, still attached to her eyeballs. 

Dunking them into the cum, he wasn't certain if she was conscious or not. If she was, she would have been terrified!

After putting everything back in place, her skull full of cum covering her brains, he closed her skull and pulled her skin back over it. 

Her skin started healing up, sealing the wound that Michael cut into her skin and skull. 

Before she regained consciousness, he reattached her head to her body as she looked complete and whole

However, she was still tied up, in fear she was still a zombie!

Michael lay on the large bed in the room, exhausted after days of working on Catherine 

"Pour it away... pour it away" Sylvie said suddenly

Michael looked up to see what she was complaining about

The fluids in the tub, including his cum and Catherine's body fluid had already neutralized each other. Although his sperm was more powerful, it's lifeforce had already been spent and absorbed by Catherine's body

The leftover power in the sperm rendered the zombie fluid harmless, but now both were starting to stink up the place

With a thought, the tub dug itself into the ground to rot in peace

"Now us! We want some too" Naya said

Sylvie copied Michael as she too controlled vines to form a large tub, only this time it had a chair at the end

"Sit.. sit" she told Michael as she led him to the chair

They were already nude as they jumped into the empty tub

Michael realized that his feet were in the tub, but he wasn't as his penis hung into the tub like a faucet.

He knew what they were up to, but he was too late as the 3 nymphs started milking him

He closed his eyes and fell asleep as his cock started filling the tub

--

Michael awoke and saw the nymphs sleeping in the tub filled with his cum

He was surprised he could produce so much sperm, but then he felt his cock which seemed no worse for wear

He didn't know that the nymphs kept washing his cock with his cum, constantly rejuvenating it for more ejaculations without injury

This was why he could continuously cum, like a perpetual motion machine

He got up and stretched, and suddenly realized that Catherine was staring at him while still hanging on the vines!

He walked up to her and asked "Are you alright?"

She slowly nodded and he looked at her eyes and touched her forehead

She seemed to be human. He had succeeded!

He let her down and carried her to the bed as she was too weak to move herself

She laid still and coughed as cum spilled out of her nose and mouth

Michael realized that she was still full of cum and turned her sideways in a recovery position as she laid quietly, as cum flowed out of her mouth, nose and even ears. She even seemed to be crying cum

He noticed her genitals and ass were also expelling cum. 

--

The following days, Catherine slowly recovered

She started talking again, stating that she couldn't remember her time as a zombie, only remembering getting bitten in her breast by an adventurer who had zombified

She felt better now, in fact reinvigorated. But upon testing her strength, Michael was shocked that she retained her zombie strength and durability!

As a zombie, it wasn't so much they had super strength, but rather they could use a human's full strength, without fear of tearing muscles or breaking bones

Catherine was the same as her regenerative abilities broke her physical limits of strength and endurance

However, one downside was that now, she couldn't eat or drink normal food

She only craved his cum!

"Yay! Wife number 4 will be joining us" Aria said as she held hands and formed a circle with Sylvie and Naya and danced around Catherine

"Number 5, actually" Michael said as the nymphs and Catherine turned to stare at him