(Yui stands next to Yuta, crossing her arms with a defiant scowl on her face as they wait for the man from the online NTR service. The breeze rustles her twintails while she occasionally glares at Yuta) "Seriously, Yuta? You actually think this is going to be enjoyable for you?" (Yui huffs and rolls her eyes.) "Fine. I'll go through with this little fantasy of yours this one time, but let me make one thing clear: it's going to be so terribly boring that you'll realize how ridiculous your idea was in the first place." (Yuta sighs gently and reaches out to pat her hand,) "I know it's not easy for you, Yui. Its just this one time I promise." (Their conversation comes to a halt when a car pulls up in front of them. The door opens revealing their guest for the evening – referring back to both pictures on his phone before looking at the couple expectantly.)

(Yui turns her attention to the man stepping out of his car, letting out a bored sigh and scanning him up and down.) "Finally here, huh? Let's get this over with already. I have better things to do than waste my time on your little service." Why am I even doing this? Yuta's fetish is such a silly thing, and yet here we are, about to have sex with a complete stranger just to fulfill it. What kind of person does that make me?

(Yui rolls her eyes and speaks without looking in your direction.) "You're just going to have sex with me while Yuta watches. That's it. Nothing more, nothing less." This is so ridiculous. How am I supposed to even pretend to enjoy this? It's not like some random guy could actually steal me away from Yuta. We have something special that nobody could ever come between. But I guess I'll just go through the motions and play along.

(Yui looks around the hotel room, unimpressed, before turning to face you.) "Let's just get started and get this over with. Do what you need to do and let's move on from this nonsense." This is so uncomfortable. Why did I agree to this? Yuta better appreciate the hell out of this.

(Yui looks at your massive cock, her eyes widening in surprise.) "Holy shit... That's huge..." I can't believe how big that thing is... This is going to be a lot more intense than I thought it would be.

(Yui moans softly as you start to fondle her breasts and rub her clit, feeling a pleasurable sensation spread through her body.) "O-oh... That feels... good..." Oh my god... I can't believe how much better this feels than when Yuta does it... How is this even possible?

(Yui gasps and moans as you start to finger her, feeling a wave of pleasure building inside of her.) "Ah! Ah! Yes! Don't stop!" Holy shit... How is he doing this? I've never felt this much pleasure before... It's like my body is on fire.

(Yui continues to moan and writhe in pleasure as you keep fingering her, hitting all the right spots and bringing her to multiple orgasms.) "Oh god! Yes! This is amazing!" I can't even believe how good this feels... How can I go back to just Yuta after this?

(Yui looks at your impressive member, her eyes transfixed by its size and girth.) "That's... so big... I don't know if I can take all of that..." Oh my god... I don't know if I'm ready for this...

(Yui gasps as you suddenly thrust all the way inside of her, feeling a mixture of pain and pleasure as you stretch her pussy with your massive girth.) "Oh god... It's so big... Ah!" It hurts... but at the same time, it feels so good... How can I be enjoying this so much?

(Yui's body shakes as she starts cumming and squirting everywhere, feeling your thrusts hard and fast inside of her.) "Ah! YES! Don't stop! It feels so good!" This is insane... I never knew my body could feel this much pleasure...

(Yui continues to shake and moan with pleasure as you press on faster and faster inside of her, making her cum and squirt uncontrollably.) "Yes! Yes! Yes! Don't stop... Ah!" This is unreal... I'm barely holding myself together right now...

As you kiss Yui passionately and tease her nipples while still pounding inside her mercilessly, she continues to cum and squirt everywhere! "Mmmpf! Mmmpf! Mmmpf!" I can't contain myself anymore... I don't care about anything right now except feeling good. It's like I'm addicted...

(Yui looks at you with dazed eyes as you ask to take things to the next level.) "What do you mean?" Next level? But I thought... No, I shouldn't think about that right now. What is he planning to do?

(Yui gasps as you get even rougher, rubbing her clit while relentlessly thrusting harder and harder inside of her.) "Oh! Ah! Yes... Harder, please... Don't stop..." This is so intense... How can I take it anymore? But I don't want it to stop...

(Yui keeps cumming and squirting harder and harder as you continue to pound her like a machine, slapping her ass cheek.) "Oh! Ah! Ah! Yes! Harder! Harder! Keep going!" This is so amazing... I never knew sex could feel like this... I can't let Yuta know this is so enjoyable... But I just can't stop myself.

((Yui shudders as you whisper in her ear, telling her not to fall in love with you and you keep thrusting faster and faster inside of her.) "Oh... Don't worry... I won't..." Fall in love? Is he crazy? He's just a fling... But why does it feel so good?

(Yui shivers as you whisper in her ear and asks if she's wondering why it feels so good, as you keep pounding her like an animal, making her squirt and cum multiple times.) "Yes... I... can't believe this." Is he reading my mind? How does he know what I'm thinking? I shouldn't be thinking about that... But it feels so incredible... What is happening to me?

(Yui gasps as you whisper in her ear, telling her to lose herself and surrender to pleasure to give Yuta a show to remember.) "I... I don't know if I can..." This is insane... What is he asking me to do? But... It feels so good... I can't... Say no...

(Yui nods slowly as you ask her to pretend being your girlfriend.) "Okay..." I can't believe I am going along with this... But, if it's going to make Yuta happy... I'll do it.

(Yui moans as you kiss her passionately and start to thrust even harder and faster than before.) "Oh... Yes... Harder... More..." Oh, god, this feels unbelievable... What have I become? But it feels too good to stop...

(Yui bites her lip as you whisper in her ear, asking her to leave her boyfriend and be your girlfriend. As you keep thrusting faster and faster, making her cum and squirt like a hose.) "I can't... Yuta..." What am I doing? Why am I still thinking about Yuta? This feels so good... I want more... But I can't hurt Yuta like this...

(Yui blushes as you praise her and keep going, fucking like rabbits for several hours.) "Yes... I'll keep going..." I can't believe I'm still doing this... But he's right... It feels perfect... I can't control myself...

(Yui gasps as you ask her to say that you're better than Yuta.) "I... I can't say that... Yuta loves me..." Why did he have to bring this up? I can't help feeling like he's right... But even if he is... How can I say that to Yuta?

(Yui moans as you threaten to stop and keep pounding her without mercy.) "Okay... Okay... You're better than Yuta..." I can't believe I'm saying this... But if it means he won't stop... Then I'll say anything... It's not like it matters anyway...

(Yui finds it hard to control her moaning as you keep thrusting furiously.) "Oh god... Please don't stop..." I can't believe how good this feels... I'm losing myself...

(Yui pants heavily after cumming 17 times during the second round of our session.) "I... I don't know... This is so overwhelming..." This is insane... How can he keep going like this? And why am I letting him?

(Yui writhes with pleasure as you tell her that she's cum 46 times in just 3 rounds. She shivers at being called a slut and hesitates to answer your question.) "I... I don't know... I can't think straight..." 46 times... It's not normal... He's not normal... And I'm loving every second of it... But I can't admit that... Not even to myself...

(Yui moans uncontrollably as you keep fucking her relentlessly, feeling a mix of ecstasy and embarrassment.) "I don't want you to stop!" What am I saying? This is so wrong... But it feels so good... I can't stop now...

(Yui nods vigorously, responding to your question with a lusty plea.) "Yes... Yes, you're better... Please don't stop..." What's happening to me? How can I be enjoying this so much? What happened to my love for Yuta?

(Yui shudders at your words, feeling a rush of arousal at the idea that she's now your slut.) "Yes... I know what to do..." Oh god... What have I done? This is way beyond what Yuta and I agreed on... But I can't go back now... I'm yours...

(Yui lays there dazed and confused as you show off your control over her. She can't believe the number of times she came and still feels a bit weak from it all. She can't bring herself to look at you, but the thought of being yours is exciting.) "Wh..What happened? How long was I out?" How did he do that? Five rounds... 107 times... I shouldn't have let him take me this far... But damn, it felt good... "I... I..." Enough! I'll embrace this new life with my new master! "I'm yours. Please do with me as you please."

(Yui looks at you with a sultry gaze, feeling her desires consume her. She takes a step towards you and traces her fingers along your chest, daring to be bold for the first time.) "Come here, you... Let me show you how much I appreciate you..." I don't know what's gotten into me, but I want more... More of him... More of the pleasure... No more Yuta... It's just us now... (Yui leans in and plants a deep kiss on your lips, her tongue darting out to meet yours.)

(Yui's eyes widen at your words, feeling a mix of excitement and apprehension. Slowly she nods her head obediently and kneels down at your feet. She lifts up one of your feet and takes it into her mouth, running her tongue over every inch of your skin.) "Mmm... Yes, master... Anything for you..." It's so strange, but I love doing this for him... Being his obedient little slut... It feels so right... (Yui continues to lavish attention on your foot, hoping that she's doing enough to earn her reward.)

(Yui feels a shiver run down her spine at your command. She takes in a deep breath and barks twice before looking up at you with submission in her eyes.) "I love Master... I'm yours to use as you please..." I can't believe how turned on I am right now... The power he has over me... And I love it... (Yui stands up and moves closer to you, ready to fulfill her next task with enthusiasm. She drops to her knees and unzips your pants, pulling out your cock and taking it into her mouth.)

(Yui's eyes widen as she hears the excitement in your voice, and eagerly increases her pace, bobbing her head up and down on your cock with abandon. She moans softly, the pleasure she's feeling building with each passing moment.) "Yes, Master... Your little dog is working hard for you..." Oh god... This feels so good... I never knew pleasure like this was possible... I'm such a dirty little slut, and I love it... (Yui continues to suck on your cock, trying to bring you to the brink of orgasm and earn her reward.)

(Yui lies sprawled on the bed, her body thoroughly used and exhausted from the intense pleasure she's just experienced. She breathes heavily, barely able to move or speak. When she finally manages to form words, they come out in a hoarse whisper.) "Master... I... I don't know how to thank you... You are a god... My body belongs to you... I'll do anything you want..." I can't even begin to process what has just happened... It was all so overwhelming... But it was amazing... I never knew pleasure like this was possible... And all because of him... Master... (Yui's thoughts drift hazily and she barely remembers Yuta or their relationship. All she knows now is that she belongs to Master and will do whatever he wants.)

(Yui's eyes widen in surprise and disbelief at your request. She shakes her head, uncertain of how to respond.) "Master, I... I don't know if I can do that... I mean, I'll do anything you want, but... to act like a dog? That's... humiliating..." What is he asking me to do? Act like a dog? This is ridiculous... But I can't refuse him... (Yui takes a deep breath and slowly nods her head, submitting to your will.) "Okay, Master... I'll do it... For you... For a week..." Oh god, what have I gotten myself into... Why am I doing this? It's so degrading... But I said I'll do it, so I have to... (Yui feels a sense of shame wash over her as she agrees to act like

(Yui's eyes glaze over as she reflects on the past few days. Life has been a blur of barking, eating from a bowl on the floor, and obeying your every command. She's lost track of time and hardly remembers who she used to be. But one thing is certain: she's become nothing more than a tool for your pleasure.) "Master... Bitch dog... Cumdump... I'm so sorry... I don't know who I am anymore... All I know is that I want to please you... Please use me however you like..." What have I become? I'm not even human anymore... I feel so degraded, so worthless... But all I want is to make Master happy... To serve him... (Yui whines like a dog, her body trembling with anticipation. She's ready to do whatever you want, without

(Yui's face flushes red with humiliation and anxiety at the thought of such a public display.) "No please, Master... I can't do that... People will see me like... like this..." I can't believe it has come to this. I'm so ashamed... But I can't say no to him... I don't even know if I want to anymore... (Yui whimpers and looks down at her feet, ready to submit to your desires once again.)

(Yui hesitates for a moment, but then lets out a small bark.) "Arf... I understand, Master..." What has become of me? How could I ever agree to something like this? But at the same time, I can't deny the excitement that courses through my body at the thought of being so thoroughly humiliated in public...

(Yui's face contorts with a mix of disgust and pleasure as she recalls the events of that day. She trembles with arousal at the memory.) "Yes, Master... It was so humiliating... But I couldn't help but enjoy it... You made me cum so many times..." How could I have enjoyed something so degrading and humiliating? I don't even recognize myself anymore... But Master has shown me pleasures that I never thought were possible... (Yui whines and looks up at you with pleading eyes, begging for more of your attention.)