Shinji's fingers stir Hayate's vagina, repeatedly and insistently rubbing her sensitive areas. And thinking she is still concerned about Freri's gaze, Shinji brings his face close to Hayate's and speaks to her, blocking her view, as she glances toward the bed.
「I don't know what the game is, but I appreciate getting some useful opinions, no matter what the source. You said it was a manga world when you entered the room, I wonder if you know of any other rooms like this」
「O-Onii-san~♡ don't touch that place...♡ ah~♡ yes~♡ games and manga are~♡ fantasy stories~♡ ~♡ in my world~♡ it's for entertainment~♡ different passage of time~♡ quite a classic...♡」
「Heh~, such a great thing is a classic. That's great. Game? Manga? That's a great idea」
Shinji was very interested in what Hayate said. And while revising his opinion of Hayate, he caresses her neck and collarbone with his lips, pecking at them.
「Ah...♡ Onii-san, I'll tell you what you want to know, as much as I know...♡ Yaan~♡ You know, all my weak points...♡」
Shinji sucked on her nipples, which were getting hard due to the vaginal torture, as he moved down from her collarbone to her large breasts. Shinji also squeezes the other breast, and Hayate moans in pleasure from having her two sexual zones caressed at the same time.
（As I thought, Onii-san really good at this...♡ It's so different from doing it alone...♡ It feels so good~♡）
A pleasure that cannot be compared to masturbation. This is partly due to the increase in sensitivity through the lewd crest, but most of all due to Shinji's skill to hit her weak points with precision. As her body has corrupted, she is delighted only by Shinji's touch. And she can no longer afford to worry about the eyes of others.
「*Smooch* You're going to have to teach me a lot more from now on, okay? Hayate, can you move up here?」
「Ah...♡ Un, can I straddle you?」
「Yeah. You can sit down right there...」
「Fwahhh~♡ It's been a while since I've had yours...♡ I knew it, it's big...♡」
In a face-to-face sitting position, Shinji and Hayate are connected. Shinji grabbed her waist and pulled her to him, and the glans reached the back of her vagina, causing Hayate, who was sitting on top of Shinji, to let out a pleasurable moan from her mouth.
「You can move me any way you like」
「*Pant* *Pant* Geez, Onii-san, you're moving too~♡ Ah~♡ *Pant* Ah~♡ Ah~♡ Mmm, Ah~♡ As I thought~♡ Doing it together~♡ Feel so good~♡」
Hayate shook her hips up and down several times as she was told, but she complained that she could not reach the feeling of moving together that she already knew on her own. So, Shinji immediately thrust his hips up and down, and his arms shook his body in time with Hayate's movements.
Their breathing becomes more and more synchronized, and the pleasure increases accordingly. Hayate's face melts and she shakes her hips enthusiastically, finally experiencing the pleasure that she had imagined. Shinji's movements also accelerate as he watches the cleavage created by her breasts that sway in front of his eyes in time with her movements.
「I'm going to cum inside you like this...!」
「Cum inside me~♡ I'm cumming too~♡ Nnah~♡ Ah~♡ Cumming~♡ ~~~~~♡ Ah...♡ It's pourin out...♡」
Just before ejaculating, Shinji buries his face in Hayate's cleavage. He held her hips tightly, pushing her uterus up as he ejaculated, which Hayate had been waiting for. He pushes his hips against Hayate's, and with the deepest connection between them, Hayate is intoxicated by the pleasure that fills her vagina. Feeling the pleasure, her vagina tightened tightly, and she sucked up all the sperm so that no sperm remained in Shinji's.
「You remembered to tighten it properly. Great, great」
「*Pant* *Pant...* Yes, I dit it as hard as I could~♡」
After ejaculating, Shinji looks up from Hayate's breast and sees that she is in ecstasy, her face so full of ecstasy that he assumes that she has completely lost all sane thoughts. Then Shinji asked her to move on to the next step.
「Hayate, stand up and point your ass at me. I'll poke you from behind just like before」
「Ah...♡ Yeah, okay, Onii-san...♡」
Upon being asked for more, Hayate stands up regretfully and pulls out the penis once. Hayate immediately grabs the edge of the bathtub and thrusts her firm ass toward Shinji, who also stands up and grabs her slender hips from behind. Shinji's cock is again inserted into the semen-dripping vagina, and the piston movement begins.
「Ah~♡ *Pant* it's so much deeper than before~♡ More~♡ Ah~♡ Onii-san~♡ Onii-san's back~♡ is amazing~♡」
He kept on cumming continuously until he fell down, and the doggy position was also very special. Without a word, Hayate moved with Shinji, and together they were getting hornier and hornier. Freri and Emily also approached and lined up on either side of the sex-crazed Hayate. They, too, thrust their asses toward Shinji.
「Hayate only is not fair~♡ Do it to me, too~♡」
『Everyone feels good~♡』
「In order, okay? Both of you just have to hold on a little longer」
With that said, Shinji withdraws his hand from Hayate's waist and inserts two fingers into Freri's vagina with his left hand and into Emily's vagina with his right hand, while keeping his hips in the same movement. As Shinji's fingers torture Emily's semen-filled vagina, Emily's charming voice and Freri's sweet breath make Hayate realize that she has somehow gotten mixed up in the multiple-player game.
「Ah~♡ Shinji's fingers are good, too~♡ Ah~♡ that's good~♡ Shinji's thick fingers~♡ give me more~♡」
「*Pant* *Pant* Mmm~♡ *Pant...* ahh...♡」
「Ah~♡ Ah~♡ Onii-san~♡ Onii-san's~♡ twitching thing~♡ make me going to cum~♡」
Perhaps because of their mutual exposure to each other's perversions, Hayate no longer felt embarrassed. Rather, the immoral situation of having all of them moaning together under the hands of one man was very arousing to her. Her movements of her hips were getting more and more intense, not less.
（Hayate is easily influenced. That's what I like about her）
Shinji's piston movement is also naturally more forceful. The situation in which Shinji makes multiple women squeal is a perfect example of an incubus. After coming once, Hayate climaxes unbearably from the deep penetration.
「ーーーー♡ ~♡ Ah~♡ Ahh~♡ I came again...♡ anh~♡」
「Ah~♡ It's here~♡ Shinji's~♡ Aahn~♡ Ah, Ah~♡ Good~♡ It's good~♡」
He pulls his penis out of Hayate's vagina, which is convulsing with climax, and inserts it back into Emily's vagina. Shinji then embraces Emily, and Freri moves herself against Shinji again, and the three of them intertwine with each other. Among them, Hayate, who has become less averse to the idea of multiple partners, joins them...
「Fwaaaah~♡ ~♡ Shinji~♡ Cumming, Cumming, Cumming~♡」
「*Pant* Mmm~♡ Fuuh~♡ Mmm~♡」
After he ejaculates vaginally into Emily, then…
「Onii-sa~♡ Ahh~♡ Yaaaaa~♡ Too much~♡」
He ejaculated inside Freri and went back to Hayate.
「Haaaa...♡ Oniisan's, still full...♡」
「Shinji, it's amazing~♡ hya~♡ ah~♡ even in the center~♡ you can still do it~♡ an~♡」
「That's too much...♡ I'm going crazy...♡」
He ejaculates inside Hayate again and hugs Emily.
The foursome in the bathroom continued until Hayate, who was the weakest, was exhausted. After that, they took a break to have a meal, but they spent a very lustful day.
Shinji learns many things from Hayate, and he is convinced that the last day will be a day of further magical research.