Suzune had an ecstatic expression on her face while she was incontinent. She looked like a female beast crazed with lust.
"N'aaa... ahi... fuhe..."
"You're making a terrible face."
Suzune's face after climaxing was vulgar. Her eyes were rolled back, and tears, snot, and drool were streaming down her face. Yuji lovingly stroked her bangs.
"P-please put it in, Yuji-san... put it in..."
"What?"
"Your dick... please put it in my pussy..."
Suzune begged, thrusting her butt out towards Yuji and wiggling it.
"No."
He said it as if scolding a child begging for pocket money.
"D-don't say that..."
Suzune couldn't hide her disappointment. Yuji stroked Suzune's butt to comfort her.
"I told you we'd be doing anal exploration today instead. You can feel good with your anus."
"R-really?"
"Yes."
"M-my anus..."
"I'll use this, the one I used on Yukina."
"Huh? Hiiiiii!?"
Suzune turned back and shrieked with her eyes wide open. It was one of the sex toys he had used for Minato Yukina's anal exploration before. It looked like an injector, and it began to forcefully inject its contents into Suzune's butt.
"N-no...! It's coming in... it's coming in!"
"Bear with it, it's to clean the inside and to not hurt your anus."
"Ahhhh! Don't do that... n'hii!?"
A cold liquid was injected into Suzune's confused butt.
"N'hii! Oh... n'oh... hiu..."
"Good, good, it's all in now."
"A-all of it...?"
"And now, the main event begins."
He pulled the sex toy's injection port out of Suzune's butt hole. And before the contents could spill, Yuji thrust his own meat column in.
"N'hyaa!"
"Haha, it's all slippery all the way to the back!"
The narrowing of her anus was widened by his meat column, and it slid into the back of her belly with a squelching sound.
"It's so tight..."
"N'gho... agh... n'ah..."
Suzune was moaning with a dreamy expression. Yuji let out a sigh of admiration.
"Suzune, your anus is just right."
"Fuhi... higyu!"
"Does it hurt?"
"I-it doesn't hurt, but... m-my stomach feels funny..."
"Well, I did put a lot in there. If it doesn't hurt, you can try a little harder, right?"
"Huh? Yuji-san...?"
Yuji inserted his meat column all the way to the base in one go.
"Nhooooh!?"
Suzune screamed like an animal. Yuji ground his tightly pressed groin against Suzune's butt. And he rotated his meat column inside Suzune.
"Ahh, hiiii!?"
While listening to Suzune's voice, which was difficult to distinguish between a moan and a scream, Yuji moved his meat column.
"Kyaaaah! My anus... n'hiii!"
The sound of sweating flesh colliding echoed in the bathroom as Yuji's groin and Suzune's butt hit each other.
"Ahn! Hii! Ahhh!"
Suzune's face, shaking her head like a madwoman, was reflected in the mirror, and Yuji could see it. With juices flowing from her face, the smiling Suzune had her sanity evaporated by sexual pleasure.
"Hiii! I-it's going to come out! If you do it this intensely... it's going to come out of my butt!"
"What's going to come out?"
"Hii! Ahii!?"
Suzune tightened her anus. She was desperately trying to keep her excretions from leaking. Yuji's meat column was squeezed, and he scraped the inside of her body.
"N'hii!? Stop! Don't do that! It's going to come out, come out, come out!"
"What's going to come out? If you don't answer, I'll pull this out."
"N-no! If you pull your dick out, it'll come out!"
"I'll pull it out if you don't answer."
"Hih, don't pull it out! Poop and other things will come out!"
Suzune's vulgar confession aroused Yuji's beastly desire, and his hip thrusts became stronger and faster. Suzune's delicate internal parts were stimulated even more intensely.
"I think I want to come out soon."
"Ahh! Y-you're so intense! Intense! Intense! Ahh! U'ahhh! Hiii!?"
Before he ejaculated, Yuji reached for her clitoris.
"Ah! Don't! I-it feels so good! N'aaah!"
Yuji held back. To ejaculate, he thrust his hips into Suzune decisively.
"A'hyaaaa!"
Yuji ejaculated while massaging her clitoris. Semen was injected deep into Suzune's butt.
"Ah... fuhi... ahahaaa..."
Suzune was immersed in the crazy deep afterglow of her climax, and with her butt still thrust out in an indecent posture, she was trembling, her ivory-like limbs twitching, and she smiled ecstatically, drowning in a sea of lust.
"Ahie..."
After gently stroking Suzune's head, he pulled his meat column out of her anus, and semen spilled from the hole. Suzune's first anal sex seemed to have gone well. If this successful experience and pleasure become a habit, Suzune will gladly offer her butt for anal sex.
---------
Yuji took his smartphone from the changing room and launched "Love Hunter." As expected, Suzune's affection level was at 100. Yuji changed the settings to complete submission.
Just as he finished changing the settings, Suzune's stomach rumbled. She felt a stomachache.
"...Kyaa!? Ah, no...!"
Suzune immediately got up and tried to leave the bathroom, but Yuji grabbed her arm and stopped her.
"Where are you going?"
Yuji asked a question to which he already knew the answer.
"Ah... uh... to the toilet...! I-I'm going to leak...!"
Suzune had a desperate look on her face, restlessly shifting her weight from foot to foot.
"Poop?"
"No! I can't hold it in! It's going to leak...!"
"You can do it here."
"Huh?"
Yuji said while stroking Suzune's slender waist.
"I want to see you do it, Suzune."
"...Pervert."
With tears in her eyes, Suzune looked at Yuji and said that, then she crouched down with her butt facing him. A liquid began to flow from her butt. The pleasure of excretion and the shame of being watched by Yuji stimulated her senses.
"N'fu'go'fo'o'o'o'o'o'o'o'h! Fu'go! It's coming out!"
Suzune screamed in the overwhelming pleasure of excretion.
"Oh, a lot was in there, huh."
Yuji had a rare experience of watching a beautiful woman excrete while giving off a raw smell.
"...Don't bully me so much..."
Suzune teared up and leaned against Yuji's chest.
"Sorry, sorry. So, did you enjoy the anal sex?"
"Ah..."
Yuji hugged Suzune tightly and whispered in her ear.
"If you don't tell me, I'll end it here today."
"No...! Don't end it...!"
"Then tell me."
"...It felt good. So, please... make me feel even better?"
"I understand."
They continued to train Suzune's anus until the evening on Sunday. Suzune, who was initially ashamed of excreting in front of Yuji, seemed to have lost her sense of shame after becoming addicted to anal sex and no longer hesitated to do so in front of him.
Yuji looked down at the lustful female beast lying on her back on the bathroom floor. She had an ecstatic expression on her face, with semen, urine, and excretions dripping from her.
"N'fu... fuhi... n'hooh..."
"Even like this, a beautiful woman is cute."
Yuji had not expected her to become such a lustful deviant in such a short period of time. It wasn't just Suzune, but Yukina and Rin-chan as well; seeing chaste virgins become crazy for sex and start to enjoy their own perversion was a joy that he found hard to describe.
"I love the perverted Suzune too."
When he said "I love you," Suzune's eyes went hazy, and she smiled loosely.
"We haven't used this place today yet, have we?"
"...N'ah...?"
Yuji traced Suzune's vulva with his finger.
"N'he!?"
"Let's end the day here."
He lifted and spread the legs of the hazy Suzune and inserted his meat column into her private part.
"N'gyu'n'ho'o'o'o'o'h!?"
Suzune let out a beastly moan.
"Y-Yuji-san...?"
As his meat column was deeply inserted to the very back of her vagina, Suzune's consciousness awoke. She finally regained her usual dignified expression.
"Anal sex was fun. You were so erotic and cute, Suzune, when you were feeling it. You were the best."
While still connected to Suzune, Yuji praised her to the heavens. He cupped her face with both hands and rubbed his forehead against hers.
"T-that's good..."
Suzune looked satisfied with the praise. She was happy with the fact that she was able to excite and please Yuji. By having her affection level raised to Max, and with her original nature, Suzune had come to love serving Yuji. From now on, she would probably drown in pleasure and fall for him even more.
"I'll keep trying my best, so as Yuji-san's sex slave, ah... I want you to use me as your outlet for sexual desire anytime, anywhere..."
"..."
He thought he had gotten a monster, but it seemed he had gotten a sex slave.
Suzune seemed to have fallen even further than Yuji had expected.
============
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