Using a Mysterious Spellbook Ended Up Creating a Slave Harem - Chapter 21

 Rina Takechi - Part 3

Pulling my mouth away from the beautiful breasts of Rina, who had grown entirely docile and ceased her resistance, I slowly moved my body. As I began to shift my penis back and forth—having left it inside her since the first discharge—the mixture of our bodily fluids produced a highly obscene squelching sound.

"Takechi-san. You're incredible." 

"............" 

"To think you could be this adorable, and feel this absolutely amazing inside..."

My shaft monopolized the inside of her narrow vagina, ruling over it as if it were my rightful domain. A tingling sensation rapidly transformed into pure ecstasy, and the rhythm of my hips naturally accelerated.

"Ahhh... it feels so good..." 

"............Ugh."

Evidently still experiencing a lingering sting of pain, Rina occasionally let out small, muffled groans. Paying her no mind, I rested both of my palms against her knees to spread her legs further apart, increasing my speed as I drove my hips with brutal intensity.

"Takechi-san, your pussy feels way too good. I feel like I'm going to blow again." 

"Nnh............" 

"Ahh... this is it. Pretty soon..." 

"Ugh..." 

"Oh... it's—it's coming... I'm going to cum."

"...Uugh." 

"Ahhh! It's shooting! I-I'm going to blow!" 

"Ugh, nnuu..." 

"Damn it, I—I can't hold it back anymore! I'm cumming!!"

Pulling my waist back at the absolute last second before a second creampie, I stroked my rod right at the edge of ejaculation and sprayed a heavy burst of semen all over Rina's lower abdomen. Between the thrill of finally carving the crest and the intense pleasure of the release, my breathing was completely ragged.

Waiting for my breath to steady, I kept my eyes on the first round of semen slowly trickling out of her vaginal opening as I moved my right hand. Hovering my palm directly over her lower abdomen—now thoroughly coated in my second discharge—I chanted the incantation for the crest magic.

Just like the previous two times, a wave of heat surged into my right hand, and the semen resting on her skin began to shift dynamically. Faced with that unnatural transformation, even Rina, who had been trying her absolute best to maintain a total lack of response, was forced to react.

"...Nnh, mmph? Hi—hing! ♪ Nnh! ♪" 

"Takechi-san, how does it feel? Does it feel good?" 

"Nnh! ♪ ...Nnuu! ♡ Nnun! ♡"

The semen on her skin vanished as if absorbed into her pores, and in its place, the crest manifested in its absolute earliest stage. Simultaneously, Rina arched her back, lifting her slender waist as she let out a groan of pure ecstasy and soared straight to a blinding climax.

"Good girl, good girl. Everything is going perfectly." 

"Nnngh... nnh............"

Reinserting my shaft—which hadn't even fully softened—back inside her, her pussy, now converted into a slippery, muddy quagmire of juices, easily welcomed my member back into its depths.

"Now then, let's get even closer, shall we?" 

"............Nnh!?"

Feeling her walls wrap tightly around me in a thick, sticky embrace, I rubbed my semi-erect member against the vaginal lining. As I rocked my hips back and forth, crashing my body against hers, my cock rapidly regained its full rigidity, curving magnificently inside her vagina.

"Alright, I'm going to give it to you for real now, okay?" 

"...Nnh! ♪ ...Nnh! ♪ ...Hi! ♪"

Faced with Rina, who was now incapable of remaining unresponsive due to the engraving of the crest, I progressively increased the speed of my thrusts. Thanks to the crest's effect, her vagina clamped down with a tight yet remarkably soft grip, delivering an even more sublime layer of ecstasy.

"Ohh... it's gotten significantly better." 

"...Nnh! ♪ ...Nnh! ♪ ...Nnh! ♪"

I thrust back and forth, breaking through the mucus membranes that clung tightly to my rod and practically sucked at it. Sensing that she too was experiencing the pleasure, a sweet quality crept into her groans, and her rigid facial expression melted away.

"Ahhh... Rina, Rina..." 

"...Nnh! ♪ ...Nnh! ♪ ...Nnh! ♪ Nnh! ♪"

Calling out Rina's name, I made my movements more frantic, gouging into her inner depths. Heading straight toward my third discharge, I plunged forward relentlessly.

"I-It's almost time..." 

"Nnh! ♪ Nnh! ♪ Nnh! ♪"

Offering no resistance whatsoever, Rina kept her legs spread wide to welcome me in as I frantically drove my hips atop her. Finally, clinging tightly to her angelic, naked body, I rained down rapid, shallow thrusts right against the absolute ceiling of her vagina.

"It's finally time for you to be reborn, Rina." 

"Nnngh! ♪ Nnh! ♪ Mnnph! ♪"

"Yes! Rina, you are the absolute best!"

"Nnuu! ♪ Nnh! ♪ Nnh! ♪" 

"I'm—I'm cumming! It's shooting!" 

"Hing! ♪ Muu! ♪ Nnh! ♪" 

"It's coming!! I'm cumming!!" 

"...Nnnuu! ♪" 

"B-Become mine!! Rina!!!" 

"Mnnph!! ♡ Nnnuuu!!! ♡"

Burying my face into the crook of Rina's neck, I held her in a vice-like embrace and drove myself completely in to the root before unleashing my semen. Her bound body arched violently, and she soared straight to heaven as if trying to rub her crotch against mine.

As her vagina tightly wrapped and squeezed around my penis, I kept her locked in a firm embrace for a good while. Savoring the joy of Rina officially becoming my crest slave, I rested my exhausted body flush against hers.

Once my breathing settled, I pushed my recovered body up and withdrew my penis from her vagina. First, I reached out to remove her restraints, pulling away the ball gag, which was slick with a massive amount of drool.

"Rina?" 

"Phew... Yes. Master! ♪" 

"Hold on a second. I'll get these restraints off you."

Confirming without a shadow of a doubt that she had successfully transitioned into a crest slave, I released her body from the gear. Having been bound for a considerable amount of time, she carefully extended her legs and sat up with a sluggish, languid movement.

"Are you alright?" 

"Thank you for your concern. I am perfectly fine." 

"Is that so? Good."

Sitting on top of the bed, the moment our conversation concluded, Rina lunged forward to embrace me from the front. Wrapping both of her arms around my back, she pressed her alluring, beautiful breasts firmly against my chest.

"Ahhh... Master! ♪ Master! ♪" 

"R-Rina..."

Gazing at each other from point-blank range, she slowly closed her eyelids. Yielding to that temptation, I wrapped my arms around her in identical fashion and overlapped our lips.

"Nnh..."

The sensation of her sweet, soft lips immediately made me lose myself, my breathing turning heavy. After a long, lingering kiss where we simply pressed our lips flush against one another, we naturally parted our faces.

"Master..." 

"Hmm? What is it?" 

"How was... Rina's first kiss?" 

"...It was the absolute best. I'm the luckiest guy alive..."

Though I had already kissed her while she was asleep, confirming that I was indeed the recipient of Rina's true, conscious first kiss made a profound wave of joy well up from the bottom of my heart. When I sought her lips once more, she parted her mouth this time, initiating a deep kiss.

"Ah... nnh, chuh, nnuu..." 

"Nnh... chuh, jyu, chyuru..."

We intertwined our tongues, sucking on one another and sharing our saliva. As I sipped her saliva, which had transformed into something sweet and delicious under the crest's influence, Rina slid both of her hands down my back and reached for my crotch, gripping my penis.

Thanks to our ravenous kissing, my cock had already staged a complete recovery. Rina began to stroke that hard, enlarged rod, which was still sticky with fluids, using both of her hands.

"Jyuru, chuh... a—ahhh... R-Rina..." 

"M-Master's... is so... big... ...mph, chuh."

Possessing zero experience and scarce knowledge, her stroking movements were incredibly clumsy. I surrendered myself to those unpracticed movements for a short while, but I quickly grew impatient with the lukewarm friction.

"Lero, jyu, jyuru............ R—Rina!"

"Kyah! ♪ ...M-Master, you're being rough! ♪"

Breaking off the kiss, I pinned her highly embraceable body flat against the bed. Keeping the faintly glowing crest in my field of vision, I parted her slender, beautiful legs, laying bare her drenched genitals.

"Rina... I'm coming in." 

"Yes... Please, do as you wish..."

Having already been penetrated by me once before, her pussy effortlessly accepted my shaft all the way to its absolute depths. Now that she had become a crest slave, the interior of Rina's vagina felt better than anything I had experienced before, passionately welcoming my member.

Like a custom-made sword slipping into its scabbard, my shaft and her vagina fit together perfectly without a single millimeter of a gap. To be squeezed, vacuumed, and sweetly clamped by vaginal walls lubricated with juices in such a state was nothing short of heavenly pleasure.

"Ahhh... it feels significantly better now." 

"Annh! ♪ Rina is... so incredibly happy to become one with Master... ♪"

As I moved my hips inside that sticky, vice-like embrace, a melting wave of ecstasy washed over me. Rina appeared to be in an identical state; responding to my movements, she let out sweet, high-pitched cries of pleasure.

"It feels so good! ♪ Please, give me more, give me more! ♪" 

"Ah! Rina! Rina!" 

"Hee! ♪ Ah ♪ Master! ♪ I love you! I love you so much! ♪"

Hovering over Rina to overpower her, I slammed my fully engorged glans directly against her cervix while observing her expression. Her face was flushed crimson, her eyes shut tight, and a perpetual stream of rapturous moans spilled continuously from her mouth.

Seeing a transcendentally beautiful girl who doubled as a nationally popular idol writhing in agony from the pleasure I was delivering filled me with an astronomical sense of happiness. Thrusting my hips with violent intensity, the two of us ascended together into a simultaneous, roaring climax.

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