The Witch's Self-Pleasure Spiral
Topaz collapsed onto the bed in a daze after dozens of shattering climaxes and heavy releases, her body finally surrendering to sleep.
It had been days since Doctor began experimenting with my semen, yet neither she nor Topaz had left the laboratory. At first Topaz had been content with gentle caresses—after all, it wasn’t home—but the swelling belly of the Witch, combined with her own patience over the past few days, eventually pushed her beyond her limits. She began squeezing me relentlessly.
“Huueu…♥ Really… you crazy woman♥ Heueuk♥”
I had been squeezed dry like a piece of dried fish, yet I survived by savoring the Witch’s eggs one after another, just as a monkey devours bananas. In the end, I had actually triumphed over the sincere Topaz…!
Unlike me, who had endured the torment of black-mana erosion, the Witch crawled across the floor in fury, her body trembling with pleasure while she scrunched her face in humiliation. The fact that she, once a being who could be crushed by a single finger, now had to offer her eggs to such a lowly creature had awakened her destructive urges. She ignored every command except ovulation and instead began self-pleasuring while muttering curses under her breath.
*Slap slap*
“Krueueut!! When I get to enjoy it however I want…!!”
When I parasitized and connected with her, this felt truly wonderful. I didn’t need to strain to use body language; my thoughts simply flowed into her, and whenever she was lost in pleasure with Topaz, she would slip into the room, offer her eggs, and react to the thought of being released. The spiral of humiliation, excitement, and even more excitement because of that humiliation was felt by me as well.
“Bilgeum…!”
Over the past few days, the sheets and clothes soaked with Topaz’s and my combined fluids had been replaced for laundry. I found the sight strangely satisfying. I knew she was only taking them for washing, but for the Witch’s last shred of dignity, I pretended not to notice.
‘Well, on the first day I caught her, I used that as seasoning to watch her masturbate even more intensely…’
The sight of the Witch drowning in infinite humiliation and excitement was truly awe-inspiring.
*Jumul jumul*
While Topaz lay unconscious, I massaged her chest and stuffed the manual Doctor had given me into my head. I had never studied like this in school, yet the fact that she was studying so diligently on her own was astonishing.
In other words, if I had had a best friend who loved me, praised me, took care of me, and scolded me during my school days, I would have studied hard…!
‘Ah! I unconsciously started thinking about something else…’
The extremely boring and academic manual made my thoughts wander.
Unlike the Witch, who I had simply stuffed with black mana, the manual detailed everything: the ideal conversion of my tentacles into centimeters based on the target’s weight and height, the ejaculation volume according to the degree of erosion to avoid damaging the mind, the speed of extracting black mana, and so on. It was nothing special, but my head hurt.
I wondered if I could just peek at the manual and treat it, but according to the manual, finishing in one go was the most ideal method.
Unlike the Witch, who had mindlessly ejaculated and waited for black mana to accumulate in her semen, I had to induce and process the black mana myself, leaving no time to glance.
Unlike the Witch, who was a great pervert, I wanted to do my best for the magical girls who had suffered erosion while protecting citizens like Topaz.
‘Please, let the cure be completed safely…’
Mindlessly jerking off was no big deal, but treating with ejaculation was a heavy burden.
Moreover, even if it was for treatment, was it really okay for me to poke normal-taste magical girls like Topaz?
‘Hmm, initially repulsive, but gradually corrupting by recalling the pleasure of reluctantly allowing my body and feeling it…’
It was a rather standard and delicious development.
“Huueu…”
Time had passed, and Topaz finally regained consciousness. She stretched her stiff body, letting out a long sigh.
She had never shown particularly pure or chaste behavior, but lewdness had gradually seeped into her actions. After letting out a broken moan, she closed her eyes to observe her own body and entered a brief meditation.
“Huuu… What a shame. Failed again…?”
*Chuuuk*
The real reason she had been squeezed so desperately was the Witch. The Witch’s body was already ninety percent mine, and she was jealous of me carrying the fertilized egg, demanding to be treated the same. But unlike the one-tool black-mana pervert Witch, Topaz was a super-strong magical girl from the very beginning. The moment I tried to root, the tentacles simply evaporated, just like when I first inserted into Topaz.
Even though the Witch was drugged and like an automatic door, Topaz’s immune system and mana were far superior. If Topaz had been in that situation, she probably wouldn’t have succeeded in parasitism so easily because of the base stat difference.
I had wanted to ask Doctor for help, but since she was focused on developing the cure, I held back. The suggestion “I can make you drugged too so the tentacles can parasitize easily” had been too difficult for Topaz, so I decided to think differently.
I concluded that if I just did it hard, it would work, and ruthless training began.
“Sorry… I had the feeling something would come out…”
Topaz stroked her lower belly, her voice engraved with regret.
Recalling that she had stimulated her womb last time to promote ovulation, and thinking that if I did it nicely again she might ovulate, I pushed hard. Unfortunately, no ovulation occurred.
I and Topaz had become sex addicts, but it was fine because we had donated, right?
“I want it soon too. The tentacle’s baby♥”
Topaz already wore the expression of a mother as much as her face. I wanted to quickly turn her into a mother of five twin babies, but unfortunately it was still far off.
As is, when the cool time came, she forced the Witch’s eggs to ovulate and took them, but unlike Topaz’s eggs, it didn’t feel that strong.
When I commanded it, it continued to ovulate, but each time she seemed to struggle, so she held back.
‘No system, the eggs aren’t sweet!’
My thoughts flowed in, and I felt that the Witch was also raging.
‘Chicken coop.’
At first I didn’t understand the term, but it conveyed the meaning of “old” or “mature.” It seemed the interpreter used by Topaz and Doctor translated it that way.
The original settings were full of poetic expressions, so it would have been perfect for a vague Chinese gacha game.
I used to enjoy it in my human days, but I always watched the stories on shorts, telling myself I would watch, only to eventually just throw gacha and collect cyber figures.
When new characters appeared, farming was annoying, so initially I tried hard, stripped the equipment of the existing characters to taste them, then discarded them…
‘Hmm..? Wait.’
Stealing the character’s thing and giving it to the character who didn’t have it.
In that case, since Topaz’s eggs weren’t coming out, I could simply press to make the Witch’s eggs appear and use them.
I had only been thinking about eating the Witch’s eggs, but I wondered what would happen if I modified them to place inside Topaz’s womb.
*Shu shu shuk!*
“Ah! Tentacle?”
The Witch quickly crawled away from Topaz, who had been stroking me, and slipped into the room where she lived.
“Hah!! O, ohjimat!! You just left me…!!”
‘Refusal is refusal!’
Before I arrived, the Witch had been blocking the door and desperately refusing as my thoughts flowed in.
Since I had no command and her strength was weaker than that of a normal adult woman, I simply pushed the door open.
And then—
*Click*
“Hngueueu♥!!! Hieeeee♥ Again, again…! This, this shitty sensation…!!!♥”
With a moan, she expressed anger, but after a few days of pleasure invasion, her expression had completely relaxed.
*Jjpoooop♥ Chuuuk*
“Ooooh?! Y, yajak…?!♥ M, my… and you…♥”
The Witch’s body had become so overflowing with fluids that insertion could happen anytime, so I simply thrust my tentacles in and swallowed her eggs.
“Huu…♥ Shibal…♥ What did I… do… like this…♥ Hah…♥”
*Jjgeok jjgeok♥*
After swallowing only the eggs and finishing, I pulled out with a sound of poking her vagina, turned back, and returned to where Topaz was.
“Huu~ng, you went to that woman… Eggs that tasty?”
Returning, Topaz looked slightly sulky and expressed her jealousy without reservation. I enthusiastically gestured and explained the plan.
“Hwaet?! The woman’s eggs… to me…? Uu♥ What am I! M, my surrogate?! …Especially with that woman’s eggs..♥”
Startled, her sharp voice gradually softened. She began masturbating alone, rubbing her thighs and twisting her entire body.
“A, can’t…♥ The first child… P, ppeokugi…♥ Crazy♥ Hhuu…♥”
Her body trembled as if she had already climaxed from imagination alone, and the bed sheet was already growing wet.
“U, can’t help it♥ U, we have to feed our tentacle the eggs not of that woman…♥ Yeah, can’t help…♥”
*Ppeokgeuueum♥*
“Let’s do it now, tentacle♥”

Thinking that the automatic door was probably not Topaz, I inserted the tentacle carrying the Witch’s eggs into Topaz’s vagina.
“Ang♥”