Seeing Kasen's gaze fixated on him, Kars nervously huddled behind Reimu for protection.
"Kars, right? Reimu's current state... it must be because of you. Do you have any idea how important Reimu's responsibilities as the Hakurei Miko are to Gensokyo? Her current state of self-indulgent immersion in sex is wrong!"
"What's wrong with it? Is it a crime to have sex with someone you love?" Kars argued, his expression defiant. Since when was sex with a loved one a sin?
"Under normal circumstances, I wouldn't say much. But what I just saw was anything but normal! It was pure debauchery! Who has sex while flying through the air in broad daylight!? And then to continue right in front of someone else without a care in the world! Is that not wrong!?"
Reimu replied with a shrug, "Well, you're a girl too. Even if you saw Kars naked, I wouldn't mind. Besides, who would have thought you'd be here?"
"What kind of logic is that!? And being 'generous' about not minding is completely missing the point!"
Kasen felt like she was going to explode from Reimu's attitude. It seemed Reimu was beyond repentance. However, seeing Kars listening intently, she wondered if she had been wrong about him. Was the problem Reimu instead?
Kasen shook her head. She remembered Kars mentioning he had a relationship with Yuugi. That meant he was a serial offender with women other than Reimu. He had almost fooled her with his innocent appearance. She glared at him again, making him even more nervous.
"Reimu, what is she trying to do?" Kars whispered, hugging her tighter for comfort.
"Don't worry. She's probably thinking of how to 'educate' you and make you turn over a new leaf. She's always hated my lifestyle and tried to change me. For you, she'll probably want you to stop thinking about naughty things every day."
"I don't want that!" Kars resisted. What was wrong with his current life?
"Everyone is happy living like this with me. They love it. Why change?"
"How could such a thing be 'happy'?"
"That's because you don't know! If you knew, you'd be happy too!"
"I have no desire to know such things!"
"That's why you don't understand! If you don't understand, don't talk about it!"
Kasen found herself unable to retort. She truly didn't understand what could be so 'happy' or 'joyful' about it to change Reimu so much.
Seeing Kasen silenced, Kars grew bold. Under Kasen's shamed gaze, he dropped his pants and had Reimu begin to perform oral sex on him.
"You... you...!!"
"Look at Reimu now. Do you think I'm lying?"
Kasen looked at Reimu, who was lapping the cock with a look of pure bliss, completely indifferent to her witness. She was lost in the taste of the cock. This sight planted a seed of doubt in Kasen's mind.
As Kars began to have sex with Reimu, and Reimu's satisfied moans filled the air, Kasen felt a strange sensation in her own pussy. Watching the cock thrusting in and out of Reimu, her own body began to feel a rising heat.
"No! How can I feel like this!?"
Kasen tried to calm herself, but Reimu's moans made it impossible for her mind to settle, and she couldn't tear her eyes away from the live performance.
"I'm just trying to... understand. After all, if I don't understand it at all, my advice will have no weight... Does the cock really go that deep... can it really feel that good?"
Strange questions began to fill Kasen's mind. She didn't realize anything was wrong as she watched Kars excitedly thrusting into Reimu's embrace like a jackhammer. Reimu's moans echoed around the shrine without end.
With Kars's final ejaculation, his cock thrust deep into her pussy. Soon, the overflowing pussy sent semen trickling out.
"Reimu, are you happy like this?"
"So happy... I want to have sex with Kars's cock like this every day... fill my pussy to the brim with semen..."
"Then let's keep going."
"Mmm~ aah~"
Kasen watched Reimu, lying prone before her, her face flushed and smiling as she endured the relentless impacts from behind. She looked incredibly happy, her tongue out in a daze. Kasen's own legs were now slick with love juice on the inside.