[Warning: Traumatising content ahead similar to Twilight's childbirth scene. You have been warned.]
He continued plowing her to keep her mind weak from ecstasy. It was similar but different from how he mated with Cyra, except much less sensitive to her feelings. The only interaction was interrogation.
As someone who learned a hefty amount of things from his Second Father about pressure points, he also started kneading any acupuncture point that could keep her in this state of bliss for longer.
It was the exact opposite approach he was expecting to do at first. No pain, no torture...
The sounds of her moaning unconsciously and the wet sounds of his rod. It was a simple, rhythmic noise neither rushed nor slow in tempo. He was enjoying the feeling of being inside her despite this 'session' beginning with him coercing to talk.
He didn't know when he had unconsciously switched from the special technique he was using before and back to the Duo Harmony Angel Tactics he mastered. Her injured vitality was slowly healing as their bodies were harmonised in traditional form.
Perhaps not even the Succubus herself noticed how he was no longer 'dominating' her, but more sensitive to her every movement. Her were draped powerlessly on his shoulders, twitching every so often as he pushed his rod into her sweet spots.
Her role was passive, not doing any particular action and relying solely on him to deliver pleasure.
From what she told him, the Incubus of the Succubi Sect was named 'Yan'. He was the only son of the Sect Leader and someone who was practically bathing in the Sect's resources. He was allowed to sleep with any Succubus under their teachings.
Since he preferred those less tainted by the Sect's philosophy, the Outer Disciples were 'graced' by his appearance. He was constantly switching partners on a regular basis and had devoured the fetus eggs of many women over the years.
Infertility actually made cultivating much easier for Succubi, as they didn't have to worry about having children with their enemies. It made the Inner and Core Disciples more eager to sleep with him.
Although his fetishes were a bit corrupt and weren't always appealing, there was a lot of girls who found him attractive. Some even became slaves to his techniques used when 'courting'...
The more the Succubus spoke, the more he started to enjoy their time together while he pounded her.
"Ah... Ah... Ah..."
"What colour underwear is your favourite?"
"W-why does that- Ah... matter?"
"Answer~" He lifted her leg up, then pushed deeper into her. It made her squirm beneath him.
She grabbed the bedsheet tightly...
"Black." She didn't know why she was even answering him. His rod drove her into ecstasy.
The length of his shaft was neither too big nor too small, allowing it to naturally slide in and out of her clit. It was almost unfair how good he was in his sexual prowess. It had already been an hour...
For him, it was just another day rocking his hips on top of a girl, but to the girl herself, she was unable to stop herself from sweating under the heat of their bodies. She was getting sleepy in the middle.
"Hey, I'll put pierce alms nipple rings on you if you sleep. I even got one that goes on the clit." His words roused her consciousness. She didn't want to feel any pain, so she forced herself awake.
"What's your favourite position?"
"D-doggy... style."
"Whose your favourite person?"
"My... sister..."
"Is she part of the Succubi Sect?"
"Yes."
"What's your real name?"
"Baila..."
"Do you want to be a sex slave?"
"If I can continue feeling like this..."
"Oh? Have you become my slave?"
"Please... Let me be your personal cock sleeve."
"What a dirty mouth~!" He chuckled before grabbing her lips, taking a look at her expression.
It was one part near unconscious ecstasy and another part submissive. Even without the microchip, she'd do as he said. However, there was a reason he needed her to be totally complaint...
The robotic tentacles arose once again and held her in place as he cradled her on his lap. He used the machine to continue rocking her hips after leaning him against his chest. Her pussy clasped and started to grind his cock due to the motions.
It was a cruel and unusual punishment to have her arms tied behind her as her lower body hungrily gobbled up his rod. He even ordered her to hold onto him tight, making her wrap her arms and legs around him. This gave him time to think separately.
He didn't seem that bothered by how she was clearly losing her mind from all the pleasures.
He ignored the Succubus moving on his lap and focused on something else. Another little droid of his... He took out a strange shaped cocoon made of futuristic technology and held it in his hand.
After taking it out the little daw by the bedside, he placed it on top and glanced at Baila once again.
The robotic tentacles followed his will, gagging her and blindfolding her against her will. Her sensitivity improved to such a degree that she ejaculated for the seventh time today. Though increasing her sensitivity wasn't what he was really aiming for.
Going back to the cocoon. He opened it up and looked at the nano-machines that were within it.
This was an imperfect masterpiece that his First Father had created using different resources.
Adding the nature of Qi, he created miniature microchips that could be used to bring a Mortal onto the level of an Immortal physically. It was created to augment the user in miraculous ways.
The only problem with it was that each nanobot had to be injected on at a time into the body along with the cocoon itself. A procedure no one could survive even if surgically implanted into them.
It was a useless masterpiece. His First Father already thought of an alternative and created something else just for him. However, he didn't forget this item. It was precious to him.
As he was getting close to his limits, he seemed to change his mind about something. Taking off the blindfold and gag. He then made eye-contact with her and stopped thrusting, finally giving her some time to rest as the tentacles lowered her gently.
She shivered despite feeling hot. Her body was completely naked and subserviently kneeling before him. His rod just so happened to be touching her face, but she let it rest on top of it.
She could feel the pulses of his bloodstream, his heartbeat. It made her remember that he was alive.
Even though she tried to kill him, he turned the tables against her to the point she couldn't argue.
It made her fear and admire her captor...
"Do you want to die?" These frigid words caused shivers to run down her back as he spoke to her.
She could tell he was being serious. Even if his rod was in biting range, he was confident in killing her.
It was thanks to the 'collar' controlling her nerves...
"Please have mercy on me."
"Like you did your victims?"
"I'll change. I won't kill anyone again!"
"I don't care about that."
"I'll service you properly for the rest of my life!"
"You're want to be my Human Cauldron?"
"Please... Anything but killing me...!" She pleaded to him, which he made her smile by nodding to.
"Okay. I'll accept you as my sex slave... but there's a catch." He then held the cocoon in front of her.
"W-what is that thing?"
"What it is doesn't matter. The most important part is that I'm going to put it inside your body." Her face paled as he looked down on her, making the Succubus girl understand that he wasn't 'kind'.
This psychopath wasn't human!
"I-it won't fit...!" She tried to plead for mercy once again, but he didn't bat an eye whatsoever.
He pointed at his member, and Baila quickly sucked him off using her best techniques. She believed he'd forgive her after this, that he wouldn't do something so insane if she listened.
He finally blew his load in her mouth, but spoke up:
"Don't drink it or spit it out, keep it in your mouth the entire time. If you spill anything, you probably won't survive." Leon shook his head as he drew a few symbols on her cheek before sealing it up.
The Life Force within the semen in her mouth would help her keep her vitality tenacious.
The young man put her on the bed and used the robotic tentacles to spread her legs, then said:
"Open up your vagina and cervix fully. Make a pathway to your womb. Block your pain receptors."
Holding onto the cocoon. He did an extremely vivid and gruesome act of a kind of 'reverse childbirth'.
Rather than making her push a baby out of the birth canal, he put something inside her body.
After opening her legs, he leaned forward on his chest and watched as she first tried to physically open up her body. However, even controlling the nerves couldn't do everything he asked for.
He saw the pink flesh of her insides and willed the robotic tentacles to help her 'open up', watching closely as even blocking the pain receptors couldn't stop her face from turning pale.
As a Demonic Cultivator, her vitality was high enough that she wasn't in the same level of danger as a normal woman, but this scene still traumatised her as she kept on shaking her head relentlessly.
'Please let me go! Let me go already!!!' She kept on repeating inside her head to no avail, only being able to watch as time passed and the opening turned bigger. He could even see her insides!
Some amount of blood started dripping thanks to the strain on her lower body. Leon didn't miss this chance as he put the cocoon on top of it and violently started to push it in like a savage.
As Leon set her up for failure, Baila swallowed the semen in her mouth and almost screamed loudly.
Little could she do anything about the young man gagging her with his hand. He nearly chocked her while looking into her eyes, pushing the cocoon into her as he did so. This scene would be etched into her heart as her worst fears of her 'Master'.
The way he so callously pushed it inside until it reached her depths, creating a large bulge on her chest as if she was already on the last steps of pregnancy. Her tears fell after being 'violated'.
Only when the pain settled down did he finally talk once again. His words giving no sense of comfort.
"You'll keep this inside you until it dissipates." He ordered before a tentacle gave him something.
He lifted her legs and slipped on something near her waist. It made a clicking sound afterwards...
She didn't have the strength to touch it, but she realised what it was instantly: A black chastity belt.
"Don't worry. I'll feed you and take care of you until you can walk again, but it'll take some time." He tactlessly lifted her up and made her sit on the edge of the bed, then put a black bra on her.
Finally, he took out a loose pair of clothes and wrapped it around her so she wouldn't feel uncomfortable. There was a chair on the far side of the room he placed her body on so she could sit.
Understanding her new role, Baila fell into despair as she realised she had become a mere doll.
"Do you still want to live even now?" He asked a question that made her bitterly nod her head.
Seeing that she wasn't 'broken', he sighed in relief for a moment. He knew what he did was inhumane.
It wasn't something that his First Father would have been proud of, but he did it for his own sake.
This was his own path. Whether it lead to ultimate mortality or supreme immortality didn't matter.
Leon continued living normally, albeit adding taking care of Baila to his routine. Whether it was taking her to the toilet, eating, or anything else, the tentacles coming from under his bed helped him.
On the night of the third transaction, Cyra came in to see the new face sitting peacefully on the chair.
Baila had come to accept her new life no matter how unseemly it was. She stopped despairing and even found greater mental fortitude as her mind recovered from an experience as horrifying as this.
She didn't even seem moved after seeing a new face enter the room, even smiling to greet her.
"...Is it off for today?"
"Who said it's off?" Leon denied before continuing darkly: "Just ignore her. She doesn't mind at all."
"But I do... Who is she anyway?" Her question wasn't to be ignored. After all, she might end up running away screaming if she found out what he did to the poor Succubus sitting on the chair.
"Are we close enough to share personal information?" His words discouraged her.
"But..."
"Actually, that woman is my wife. I've been taking care of her since she seemed close to labour."
"Still..." She somehow felt disappointed after finding out he was already married to someone.
Leon kept the conversation flowing: "She has the fetish of watching me go down on another girl."
As Baila learned nothing good came from going against him, she smiled as if to agree with him.
It was only then Cyra acknowledged her presence.