All three of them moved into the bedroom and closed the door.

Maria's eyes are moist, but she seems to have regained her composure and mutters.

「We came here on a spur of the moment... but come to think of it, we haven't even taken a shower yet. We haven't even had dinner yet」

「Even if you say so, I can't stand it anymore」

「Yes. As long as Master is okay with it, I don't mind...」

Maria glanced at Riko, who would have complained in the past. ....

But Riko smiled and sat down on the floor, looking up at them.

「I'm fine too. Master, please let us serve you」

「...Riko」

Maria's eyes widened as she saw her being more honest than before.

But then, with a smooth gesture, she took off her clothes, put on a black collar and sat down next to the blonde girl, and whispered.

「I wonder what happened between you and Master」

Riko then smiled triumphantly at the "Senior Slave" and told her.

「It's a secret. But for sure, he held me a lot while Maria was away in Master's room」

――In Master's room.

Those words also reminded Chihiro of that time. While Maria was away, they had many secret conversations in the boys' dormitory. They made love in the bathrooms, in bed, and even in the school's private training room.

Furthermore, they even showed Aika their acts as Master and slave.

If it had been just Riko and him...

The two of them might have fallen into a deep abyss in a different way than now. Perhaps that would have been a blessing in disguise.

「...So. A lot in Master's room, huh?」

「That's right. I think I know more about Chihiro than Maria」

Maria's voice is lower than usual, still Riko pushed her even harder.

Riko's tone of voice is friendly, but not without a hint of uneasiness. Chihiro is still not familiar with the delicate nature of a girl's mind, so he can't be sure.

Maria's cheeks puffed out, and her jealousy of Riko showed in her expression.

「I've only been away from Master for a few days, haven't I?」

「Hmm? Wasn't it just a few days before I was raped by Chihiro that Maria moved to the new school?」

（That's enough, both of you）

As Chihiro is about to open his mouth, the girls looked back at him.

「Master」

「Who came first, me or her?」

In some ways, it seemed like a dream, but he wondered why it made him feel threatened when he heard it.

「Well...」

For a moment, he used one of the best answers in his life.

「Riko, come here」

「Eh? Yes」

Riko's face lit up like a child's, and she came close to Chihiro.

This overly straightforward attitude is probably due to her rivalry with Maria.

As Chihiro took her lips, expressing his utmost fondness for her, he heard Maria's murmur as she sat still.

「...Master, you're so mean」

That alone sent a shiver down his spine.

Chihiro wondered what kind of expression she would have if he had said, "I wanted to see Maria after she was left to her own".

It sounded a bit perverted, but he couldn't contain his excitement.

And...

Riko's tongue movements became more intense. In a short span of time, she separated her lips and repeatedly took a breath, seeking Chihiro's lips and tongue. Following her silent request, Chihiro flicked his tongue up and down, making Riko's body tremble.

The tongue, too, is an excellent sex organ.

If he carefully stimulates her with his tongue when she is sufficiently aroused, he can expect the same effect as when he strokes her neck or armpits.

「Puha!」

Riko had become completely aroused and pressed her body against his, but he let go of her lips at once. He then took off her clothes, which she was still wearing, but of course she did not protest.

When she is wearing only her underwear, he moves his face to her neck and smells her.

「You smell sweaty」

「No... it's embarrassing」

It's summer, so of course she's sweating, but today, after being outside for so long, she smells particularly strong. In general, sweat is not a good smell, but Chihiro doesn't feel bad if it's Riko's or Maria's sweat.

「Then, can I smell your Master too?」

「Yes」

Riko undresses Chihiro and they get on the bed together. Riko put her face to Chihiro's chest and sniffed him, just as she had pledged.

「...How is it?」

「It smells good. It turns me on」

It's working out well. Feeling this way, Chihiro ordered Riko to wet herself.

「Okay」

With her face pressed against Chihiro's chest, Riko raised her lower body.

She then dipped her fingers under her panties and began to caress her own private parts with her fingers. The small sound of water and Riko's breathing echo in the quiet room.

「...It's done」

After only a few minutes, the voice came.

Then, he let Riko sink into him in a hugging position. They pressed their bodies against each other, hugging and sniffing each other's bodies. They continued to have sex, occasionally swapping positions, and Chihiro didn't forget to ejaculate inside Riko's vagina.

After a while, Riko asked him for a second time while they are still connected.

「Does it feel good?」

「Yes. My pussy, it feels good...」

After tasting Chihiro's cock a little longer than the first time, Riko climaxed again.

「*pant* *pant...* Master, thank you so much」

Slowly and carefully, she lifted her vagina and pulled out his penis.

「Are you satisfied?」

「Yes. No, I'd really like to do a little more」

She smiles at Maria, who sits up and lets her hands wander aimlessly.

「I don't think it's good to keep her waiting too long」

「...」

It seems she has won the game, right? Well, Maria bit her lip a little at Riko's comment. But at the same time, she s happy that her turn had come.

Riko got off the bed, wiped off her body fluids and picked up her clothes.

「I'm going to take a shower first, take your time」

Maria stared at the bedroom door, which closed quietly, with a complicated expression.

She turned to face Chihiro only after the door is completely closed.

「Come here, Maria」

「...Yes, Master」

Maria stood up with a stain of her love juice on the floor where she had been sitting.

「I didn't even touch you, but you're so wet」

Chihiro whispered to her as she crawled on the bed and lay on top of him.

Maria nodded her head, looking down at Chihiro's already flushed face.

「Yes. My pussy is tingling, and I'm already at my limit. Please, please. Please fuck me quickly, quickly...」

Her voice is sweet, half-exhaled. As expected, it was a good decision to show Riko's affair first.

Maria, who tends to restrain herself because she's afraid she'll lose control, is now saying lewd words when she's pushed beyond her limits.

Or, perhaps, the act of the day before yesterday has made her more susceptible to losing her control.

「Well, let's do it while standing up for a change」

「Ah, ahh... yes」

Maria wobbled and staggered down to the floor. Chihiro made her stand by the window and ordered her to put her hands on the wall.

「Like this...?」

Maria obediently sticks her ass out.

She likes to be fucked from behind, and this situation seems to excite her to no end. More of her love juices are pouring out of her already wet pussy, dripping down her thighs and onto her legs.

...If she show him something like this, then――

「Maria, I don't think I'm going to be able to stop today」

「Yes... no problem. Fuck me as hard as you want until I pass out」

With that, Chihiro penetrated her from behind and Maria let out a squeal that echoed through the room.

At first she tried to shake her hips to match Chihiro's, but soon she felt it too much and had to work hard to maintain her position. Eventually, her knees began to shake and her hands on the wall nearly went up in the air several times, but Chihiro continued to thrust her hips.

「It feels good. It feels good, it feels good...!」

As if asking for more, more pleasure.

Repeating only "It feels good", Maria climaxed countless times, and Chihiro finally ejaculated into her vagina for the first time.

*spurt* *spurtttt* *spurttttt*

After that, he ejaculated three times, and her body reached its limit and collapsed on the spot, but Maria is still conscious.

Still, Chihiro moved her over to the bed and continued the act, leaving her staring blankly into space.

The exhausted girl is almost like a doll.

He carefully but unreservedly embraced her soft body, which looked as if it would break if he put too much pressure on it. Even though she didn't move voluntarily, the warmth of human skin is exceptional, and the unconscious twitching of her vagina is pleasant. And――

Maria...

...she is smiling. Her mouth tears up in happiness as her consciousness becomes muddled.

Relieved to see this, Chihiro keeps moving, and eventually ejaculates again.

When the sensation of spitting out semen subsides, he begins to move again.

He continued his masturbation-like but not masturbation-like activities and ejaculated several more times.

After an average of six ejaculations a day.

Before he knew it, Maria had closed her eyes and is breathing heavily in her sleep.

Apparently, she is satisfied.

Then, after looking at her happy face for a while, Chihiro lightly patted her head and pulled the rod out of her vagina. With a gush, more fluid than Maria could tolerate poured out of her.

「Go ahead and sleep」

Chihiro whispered softly and left the bedroom.

As he is about to go straight to the bathroom, Riko, who was in the living room, peeks out into the hallway.

「Are you done?」

「Yeah. Maria's asleep」

「I see. I guess I'll make dinner by myself then」

Then, Riko smiles kindly.

That means the conversation in the bedroom before was an act? Or was it a deliberate provocation for the play?

「Oh, then I'll help you...」

「No. Chihiro, you go take a bath and take a nap until dinner」

「O-Okay」

He thought it was okay since Maria is not here, but Riko does the same.

He doesn't know why they are so stubborn about not letting him help them, but well, he was very tired too.

Then, when he took a shower, he almost fell asleep. Perhaps because of this, he spent more time in the bathroom than usual.

By the time he left, the dinner is almost ready. Apparently, Riko had already prepared the food in advance.

Since it is too late to go to bed, Chihiro dozed off in the living room, sitting on a chair.