Activating Attunement (A).
Imprinting the mark of Attunement onto the target's body.
The target's physical and mental strength is weaker than yours.
The mark of Attunement has been successfully imprinted onto the target's body.
Attunement (A) successful.
The target has entered a pact with you.
A vivid pink, heart-shaped tattoo appeared on Kasha's lower abdomen a lewd womb mark.
"Heh. Looks perfect."
This mark of Attunement could be imprinted in any location, color, or shape I desired.
You may propose one restriction to the bonded target.
The bonded target may accept or reject the restriction at will. Accepted restrictions heighten sensation but carry no coercive force.
"The simpler and narrower the restriction, the stronger its effect."
"Restrictions can be reset at any time."
"Attunement? What the hell did this bastard do to my body?!"
After checking the tattoo etched on her lower abdomen, she panicked and swung a fist at me. But her fist stopped mid-air as she forced herself to calm down.
Kasha's fist trembled violently. She clearly wanted to beat me to death, yet she held herself back by sheer will.
The System's notice was more interesting than I'd expected.
A careful reading of the Skill description revealed that a bonded target could reject any rule they didn't agree to. The pact heightened sensation, but it couldn't force obedience or strip away free will.
I grinned.
"You must have received the System notification too. From now on, if you stay in this pact with me, you're tied to me."
"You bastard !"
I reached out to Kasha, pulled her to her feet, and brought her face close to mine. "If you don't want this, say so now." She glared at me, breathing hard, then gave the faintest nod, so I kissed her. After a tense beat, her lips parted and her tongue met mine.
"Mmph... Mmmph..."
Kasha grabbed at my shoulders, unsteady on her feet, but she stayed pressed against me.
The kiss deepened as neither of us pulled back.
"Mmmph..."
Even as I focused on the kiss, my hands remained active. I had no intention of leaving her, now in my arms, untouched.
Sensual Amplification.
Sensual Amplification activated. Vitality will be continuously consumed.
I kneaded her large, firm buttocks, feeling the plump flesh between my fingers. I was tempted to stay like this forever, but with superhuman restraint, I resisted the urge and spread Kasha's cheeks apart.
I slipped a finger between her buttocks.
"Hngh!?"
My finger touched Kasha's erogenous zone her anus. The reaction was more intense than I'd anticipated. Her face flushed crimson as she writhed, startled by the touch but not stopping me.
As I rubbed her anus, I felt each delicate fold through my fingertip. I gradually increased the pressure.
"Ugh! Ugh! Ugh!"
Kasha's face, now scarlet, was trying to say something.
When her lips finally parted, I paused just enough to read her expression.
I activated the restraint only after she gave me a shaky nod. Since I could reset it at any time, I decided to experiment with different settings.
Restriction: Body becomes highly sensitive.
"...Gasp!?"
Kasha's pupils dilated. I knew she had seen the restriction prompt and accepted it the timing couldn't have been better.
Well, she needed to know the restriction before deciding whether to take it.
But the restriction I had imposed was slightly different from typical ones.
Will this even work?
The answer came swiftly. Kasha's reaction changed.
With each movement of my tongue and each touch of my fingers to her anus, her body twitched. Her wavering gaze and the subtle contractions of her anus betrayed her. I, watching intently, couldn't miss these minute responses.
It's working! This woman, who showed no reaction to my tongue before, is now subtly responding and fully aware of it!
I modified the restriction.
Constraint: Body becomes extremely sensitive.
But there was no reaction. Even with the word "extremely," there was no change in her sensitivity.
"...Hngh..."
Kasha, still kissing me, smirked. I could tell because our eyes were locked.
Irritated, I changed the constraint.
It was said that the simpler and narrower the constraint, the stronger its effect. In other words, the more concise it was, the more potent it would be. So...
Constraint: Anus becomes sensitive.
"Hngh!?"
By limiting the area to her anus, her reaction became far more intense. Just as I'd predicted.
Kasha trembled violently, overwhelmed by the pleasure surging from the Sensual Amplification and the accepted constraint's effect. When she gave me a shaky nod, I slipped a finger into her anus.
Her anus was tight, even tighter than her pussy. It gripped so firmly, trying to push my finger out. This anus would be a pleasure to tame.
No time for that now...
She finally spoke.
"Haaah...! Ptooey!"
The moment she opened her mouth, she spat at me. Saliva landed on my shirt, but I didn't care. We'd already kissed and exchanged saliva; a little spit on my clothes was nothing.
But then...
"You're so arrogant. Utterly arrogant."
"Hngh...?!"
Shhht.
I pressed down on the finger inside her anus, pushing it deeper into her rectum.
Kasha's upper body bent sharply. Before she could collapse completely, she grabbed my collar to steady herself.
Her ample breasts sagged downward, unable to resist gravity. The pink nipples at their tips were stiff and erect. Kasha trembled pitifully.
"Y-you fucking bastard! Go slower...!"
"I would, but your asshole won't let go of it."
"Then be gentler!"
Her grip on my collar tightened, a hollow complaint.
I slowly moved my finger back and forth inside her anus while using my other hand to grasp her downward-pointing nipple. I pinched both simultaneously, rubbing the hard nipples together.
"Hngh?! S-slower...!"
At her breathless complaint, I kept going at the pace she could take, continuing to torment her anus and nipples.
"Haa... haah..."
Kasha's mouth fell open, and her eyes rolled upward. She was reaching her climax. I caught her waist as she collapsed to the floor and slowly lowered myself to sit beside her.
Kasha's face brushed against my erect cock.
"Kasha. If you want it, suck it."
"Ha... As if I'd make it easy for you, you cripple."
"You're being awfully proud for someone already rubbing her cheek against it."
"You fucking psycho."
Constraint: Ask before giving orders.
"Ugh!"
Kasha flinched in surprise. That was all.
Invalid constraint.
"Pfft. You idiot. See? Even the System knows you can't just order me around..."
"Enough. If you're going to do it, do it properly."
"Hngh?!"
After glaring at me for a long moment, Kasha took my cock into her mouth and began sucking with wet, slurping sounds.
"Ah... It's nice and warm in there. Your mouth is surprisingly large. But your fellatio technique is still quite clumsy."
"Mmmph! Mmph!"
"You think my cock tastes good? You want to swallow my cum? Yes, yes. I know exactly how greedy you're getting."
I had successfully gotten her to suck my dick, but her fellatio skills were abysmal. Still, considering it was her first time, she showed remarkable aptitude. She had a natural talent for it.
Meanwhile, my fingers continued to move inside her rectum.
"Slurp! Suck! Slurp!"
"This is good, but it's not enough. You have such big breasts use them too."
Kasha's full, firm breasts enveloped my cock. Her mouth was already teasing my glans.
"Just holding it isn't enough. You need to squeeze and move them."
Squeeze.
Kasha pressed the sides of her breasts together, tightening the grip on my cock. Her breasts moved up and down, the pink nipples at their centers bobbing wildly, drawing my gaze.
"Suck! Suck! Suuuuck!"
Kasha's tongue licked my glans before she began sucking it like a lollipop.
The intense vacuum-like suction sent a spine-tingling pleasure through me, and I felt myself on the verge of climax.
"I'm going to cum. Don't spit it out swallow it all, Kasha!"
I ejaculated into Kasha's mouth, which was clamped around my glans. Her cheeks bulged out. As I stopped cumming, she opened her mouth, and a stream of white semen dribbled between her pink lips.
"What are you doing? Swallow it."
"...!"
Kasha glared at me, her expression twisting between defiance and heat.
With a resentful swallow, Kasha began to take down the semen.
Gulp, gulp.
As the last of it went down, her expression relaxed.
I tilted Kasha's chin with one hand and said, "Open your mouth."
"..."
Her neat white teeth, vivid red tongue, and uvula were visible.
"What's this? There's still semen left. Drink it all up, cleanly."
"..."
Tap, tap.
I brushed Kasha's cheek with my thumb. She narrowed her brows in disgust and swallowed the remaining semen.
"Fuck... you bastard! My brother will tear you apart, you fucking dog!"
Kasha's brother was the Chief of the Mud Hand Bandit Gang. Having passed the trial and increased my stats, I wasn't afraid of them at all.
I withdrew my fingers from her anus.
"You're mouthy for someone who wants another round this badly. If we're doing this again, spread your legs."
I told Kasha.
"Fuck... fuck... Why do I even want this with a piece of shit like you..."
Kasha swore incessantly, yet after a long glare she spread her legs on her own.
She was far more willing than I'd expected.
Kasha spread her legs. Her pussy was slick with both semen and vaginal fluid.
"Your pussy's a mess. If you don't want to risk getting pregnant, scrape out the semen first. Hey."
"Shut up! As if I'd carry your seed!"
With the Hero's Testicles, I could impregnate any woman at will. I usually kept the impregnation function disabled, but when I saw a brazen bitch like Kasha, I felt an urge to impregnate her immediately.
"It'd be a hassle if you got pregnant, so I'll leave it off this time. Now clean yourself out first."
"Your pathetic sperm could never get me pregnant... hngh..."
Kasha shoved her fingers into her pussy, scraping out the semen. I waited patiently.
"Haa... Ah... Aah..."
When no more semen came out, I approached her on my knees. My thick cock pressed against the entrance of her pussy.
"Fuck. Goddamn it... How many times do I have to do this before you're satisfied, you animal?"
"Who knows? Even if we did it all day, I'd still want more."
I stroked the pink heart tattoo on her lower abdomen with my palm as I began to thrust inside her.
"Ugh...!"
My fingers slid back into Kasha's anus.
And then...
At her heated nod, I reset the restriction.
Restriction: Pussy becomes more sensitive.
Squelch, squelch!
After about thirty thrusts into her pussy, Kasha's reaction shifted. The glare in her eyes softened, and sweet moans escaped her lips.
"Ah, ahh... Aangh!"
Kasha gripped my forearm tightly, arching her head back. Beads of sweat glistened along her sexy neckline.
"Haaahng! Haaah...! Hngh... Aaaaaah!"
Kasha's tongue darted out as her body convulsed. Her pussy clenched tightly around my cock. I continued thrusting, even as I came inside her, my hips rocking relentlessly. I leaned down and kissed her neck, leaving a dark mark.
"Haaahng! Haaaaaaah!"
The sex lasted for an hour.
"Hoo..."
I exhaled heavily as I straightened up.
Kasha lay sprawled on the floor in a frog-like position, dazed and breathing hard. A puddle of my semen glistened between her legs.
I rested briefly before getting up. I couldn't stay here any longer; the Mud Hand Bandit Gang would be coming to kill me.
She's exhausted, but still awake enough to answer.
I lifted Kasha's spent body, waited for her tired nod, and reinserted my still-hard cock into her pussy, positioning us face-to-face in a missionary position.
Squish!
"Hngh... hngh..."
Kasha reacted with a faint moan, too spent to do more than cling to me.
I retrieved a leather cord from my Inventory and, after she murmured assent, tightly bound our bodies together. Then I stood up. Though Kasha swayed against me, she didn't fall.
I began to walk slowly around the area. With each step, her body shifted slightly, stimulating my cock inside her pussy.
"That's right. This suits you far too well."
Being wrapped around her like this was deeply satisfying.