Neo stood behind Sai in the open bath, the steam rising around them.
She squatted low in front of him.
He pressed the thick head of his cock against her asshole and pushed in with a low sigh.
He was finally going to fuck that massive ass.
A quest window flashed in front of his eyes.
**Fuck Sai in the ass without getting caught by Sakura, who’s coming here.**
**Failure: Host death.
Sakura and Sai fighting each other.**
**Time remaining: 1 hour**
**Reward: Enjoy Sai’s huge ass + special succubus anal bead that lets you own her ass and know what she’s feeling at any time.**
Neo swallowed.
Another deadly quest.
He shook his head once.
Even if it could kill him, he was taking the risk.
That ass had him obsessed.
He pushed harder.
The tight ring fought for a second, then gave.
The tip sank in.
Sai’s insides clenched around him at once.
"Ahn...!"
She grabbed his forearm, rising onto her toes.
Lewd, needy moans spilled out of her.
The sound made his cock twitch and swell thicker inside her.
**56 minutes.**
His desire was simple—enjoy her inside.
He hated how Sai kept lying to herself, ignoring her own needs.
She was his mother-in-law.
What they were doing was wrong.
He knew that.
But his dominance still kicked in.
He wanted her to belong to him without forcing her to change who she was.
She stayed loyal to her dead husband, even though the man himself had asked Neo, right in front of her, to take care of her.
Sai always denied herself pleasure and joy.
He wanted her to worship him sexually.
Conquering the sexual priestess would feed his system’s purpose—to tame.
Still, he reminded himself of the promise he had made.
His women chose him for his heart.
He could not let his flaw of turning everything into a competition surface again.
These women had goals, desires, and agency.
He had to respect that.
His anger and impulsive desires could not push them away.
Neo wiped sweat from his forehead.
No time for slow work.
He had to fuck her hard and fast or he was dead.
He gripped her waist tighter and drove forward in one long thrust.
All twelve inches buried to the hilt.
Her huge ass swallowed every inch without resistance.
Sai twisted her head to look back.
Her eyes widened.
Even as a succubus built for sex, the sight of that thick cock vanishing into her ass shocked her.
Her late husband’s dick had never filled her like this.
Neo’s size matched her body in a way the old man never had.
Neo started moving.
Short, deep strokes at first.
Sai’s eyes went wider.
A loud moan tore out of her.
Her legs shook.
Her inner walls betrayed her, squeezing and milking him shamelessly.
It had never done that for her husband.
She felt like a virgin all over again—stretched and full.
**40 minutes.**
Twenty minutes gone and she still had not come once.
Of course.
Lewd priestess or not, she was holding out.
Neo’s heart hammered.
He did not know if it was the heat of her ass or the fact he would die if he failed.
That ass was so big and heavy it took three times the strength he used on the rest of his harem just to make it slap properly.
He grabbed her waist, sat down on the stone ledge in the bath, and pulled her onto his lap.
The new angle drove him even deeper.
Sai whimpered, soft and puppy-like.
Neo kissed the top of her head and started thrusting slow and steady.
Under the water her toes curled.
She leaned her back against his broad shoulders, eyes closed, mouth open in soft, continuous moans.
Then the bath door slid open.
Both of them froze for half a second.
Sakura walked in.
Sai’s eyes widened.
She had always sworn she would never be weak again.
As an old priestess she knew how fatal weakness could be.
Yet she still wanted pure pleasure without guilt.
Neo had made his interest crystal clear many times.
She feared her own shame would push him away.
She was just an old lady with low self-esteem, sabotaging herself whenever things went wrong.
She hid her weakness as best she could.
Her nature avoided conflict.
If she became one of Neo’s women and started making him worry, she would destroy him—and crush her own dream.
The thing she hated most was dragging him down.
He was a good young man.
He had saved her and her daughter.
She believed she did not deserve love after her husband’s death.
She liked it as long as Sakura was in love with Neo.
Deep down she wanted Neo for herself.
She feared that if he truly chose her and she failed him, the disappointment would be worse than staying lonely.
She wanted to keep the image of the wise mother-in-law.
But things had already accelerated past that point.
**Alert! Host, do not let Sakura know you are inside Sai or the quest fails automatically and you die on the spot.**
Neo’s heart slammed against his ribs.
He yanked Sai deeper behind the rock, cursing under his breath.
An idea hit him—risky as hell, but maybe the only way.
They stayed hidden.
Sakura was only a few yards away on the other side of the rock.
Sai clapped a hand over her mouth.
Neo’s hips never stopped.
She glared at him over her shoulder.
The look only made him grin.
He was in heaven.
**20 minutes.**
Sai realized her own daughter stood just meters away while twelve thick inches kept sliding in and out of her ass.
The knowledge made her walls clamp down like a fist.
Combined with her succubus nature, the soft high-end muscles inside her started massaging his cock with every thrust.
The pleasure was so intense Neo kept fucking her even though Sakura was right there.
This was his chance.
**10 minutes left.**
Sai was losing it.
Her son-in-law was rearranging her insides while her daughter stood nearby.
The shame only made her tighter.
Sakura came with a quiet little gasp of her own somewhere on the other side—probably touching herself—and the quest timer jumped.
**+5 minutes.**
Forty-five minutes of work for five extra minutes.
Neo wiped more sweat off his face and stared at Sai’s body, slick with water and sweat.
He needed to make her come hard, and fast.
He sped up.
Sai’s succubus wings fluttered weakly against his chest.
Her tail curled around and tickled his balls, making his cock jump inside her.
Sai moaned too loud.
"Mother?"
Sakura’s voice came closer.
Footsteps.
Sai panicked.
"Stay there, daughter!
There’s a... monster fish.
It bit me.
It’ll bite you too."
Sakura stopped.
"Are you all right?"
She could see Sai’s face over the rock—pink hair stuck to flushed cheeks, eyes glassy, mouth open.
Sai nodded, voice shaky.
Neo never stopped clapping her ass the entire time she spoke.
He held her cheeks spread and watched her hole stretch and grip him while she lied to her daughter.
**6 minutes.**
"Shit," Neo muttered under his breath.
Sakura offered, "Do you need help getting rid of it?"
Sai shook her head hard.
"I’ve got it.
Stay back."
Sakura hesitated, then nodded, left the bath, dressed, and walked out.
The second the door closed, Sai let out a long breath and glared over her shoulder.
"Why did you keep thrusting the whole time?"
Neo slapped one heavy cheek hard enough to make it jiggle.
"Your ass is too fucking good."
Sai came on the spot, walls pulsing.
The timer jumped again.
**+10 minutes.**
Sai’s desire simplified in that moment.
Fuck it.
She chose to enjoy her life.
She remembered her husband telling Neo to take care of her after his death.
Her husband would have wanted her to move on.
That was what she would do.
If she kept being scared she would never do anything.
She did not need to lie about her desire anymore.
She would take Neo and not care about the rest—yet she still feared falling into a big problem.
What she feared more than problems was cheating herself.
She made up her mind.
She would stay as honest with herself as possible.
That was her desire.
To do it she had to treat her flaw of denial.
She wanted to become someone her younger self would admire.
Her past self would laugh seeing her lie to herself.
She wanted to feel powerful in the one area where she had always been weak.
She had to stop over-relying on logic and start listening to her heart, even if listening to her heart felt dangerous.
She wanted to feel loved.
She was afraid that chasing Neo’s attention would make her seem desperate and make him think less of her.
Neo hated living on the edge like this.
Two orgasms from her and he was still racing the clock.
Sai smirked.
Time to show the boy who was in charge.
Her wings snapped open wide.
Her tail stood straight up.
She reached back, grabbed his thighs, and ordered, "Put your back against the stone."
Neo obeyed, flattening himself against the rock.
Sai planted her feet, squatted lower, and started slamming her ass back onto him with full force.
Water exploded around them with every impact.
She used her legs and back like a machine—rapid, angry rocks that made her cheeks clap loud and wet.
*Plap.
Plap.
Plap.
Plap.*
Neo gritted his teeth.
She was fast and tight.
Her tail kept teasing his balls.
**2 minutes.**
His eyes flashed.
"I’m not dying like this, Sai!"
He grabbed both of her ass cheeks, fingers sinking deep into the soft flesh.
"You wanted it rough?
Fine."
His high-rank tribesman strength kicked in.
He started piston-fucking her from below, meeting every slam of her hips with a harder upward thrust.
The air itself seemed to shake.
Water sprayed.
Sai’s tail curled tight.
Her wings went limp.
Her eyes rolled back, tongue hanging out in a full ahegao as he pounded her colon.
*Plap-plap-plap-plap-plow!*
"Ahn—!
Ahn—!
F-fuck— Neo—!"
His desire burned hotter than any star.
He wanted to satisfy her—and himself with her.
He wanted to break the armor she had built around herself where she lied.
He could feel the intense emotions swirling under her surface.
He wanted to fuck her until she showed her real self.
He wanted to own her, yes—but the real her, with all her flaws.
The shame of her huge ass clapping against him, the guilt mixed with pleasure, the way she fought her true desire and failed.
That was what he wanted.
His need for ownership grew sharper.
He knew she wanted permanent safety and security.
She was testing him.
Milfs like her did not settle until they saw how serious and capable a man was.
He had already demonstrated more than enough.
He wanted genuine intimacy with her.
He did not care only about her body.
If he kept hoarding his desire it would explode one day.
She came hard, juices squirting down his muscled arm and into the bath.
Her late husband had never even reached a quarter of this depth.
He had never forced her into full succubus form.
Neo’s cock head punched her deepest spots on every stroke, thick enough that she felt completely stuffed for the first time in her life.
She almost envied her daughter.
Neo used both of his ero skills at once, hammering her sweet spot with precision.
Sai came again, second orgasm ripping through her.
**+12 minutes.**
He stood, still buried inside her, and lifted her entire body with pure arm strength.
Her legs dangled.
He fucked upward into her suspended ass, bouncing her on his cock.
**17 minutes.**
The shame of getting used like a toy by her son-in-law pushed her over again.
A thick jet of fluid hit the water with a lewd splash.
Sai felt shame filling her, yet she was happier than she had ever been.
From now on she would live without needing to perform strength.
She felt appreciative that Neo chose her even though she was difficult and kept pushing him away.
She wanted to use this chance to fix her biggest flaw—the core belief that she was unlovable and that her time had already passed.
No.
She still deserved love.
She was still young.
She did not want to receive Neo’s pleasure without earning it.
Yet she knew rejecting him would only make her look more resistant and push him farther away.
She sighed.
All right.
She had made up her mind.
She would do her best to show Neo love and accept his advances—but only when they were reasonable and the time and space fit.
She still had principles.
She would reject him if the situation was not right.
Neo slammed home one last time, every inch buried, and came.
Hot ropes flooded her guts.
Sai’s toes curled hard; she felt every pulse coating her insides.
He pulled out.
Thick cum dripped from her gaping hole into the bath.
He set her down carefully, cleaned her ass and the rest of her body with slow, thorough hands, then helped her stand.
Quest complete.
Reward waiting in inventory.
Neo finally wiped his forehead.
He had almost died for that ass.
He walked her to the changing room, helped her into her clothes, then escorted her all the way to her door.
At the threshold he gave one last firm slap to that huge ass.
"Your ass is very good."
He shook his head, headed to his own bedroom, and found the rest of his harem already asleep.
He opened his status window to check the mana stone logs—and his eyes widened.
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