"Ha~" Kaguya Houraisan, taking a rare step out of her room with a yawn, walked down the hallway, holding a game console. Recently, Eirin Yagokoro hadn't come over to lecture her about putting down the game and going outside more, allowing her to peacefully finish the latest game.
However, this situation made her curious about what had suddenly made Eirin Yagokoro abandon this behavior, so she decided to leave her room and check the situation.
Kaguya, walking slowly with a tired look, soon ran into Reisen. When they met, Reisen looked surprised to see Kaguya out.
"Princess! You… you came out of your room?!"
"Yes… I finished the game, so I thought I'd go for a walk. Although I don't know why Eirin hasn't been nagging me recently, it's still better to walk around. That way, she won't have anything to say. By the way, is Eirin busy with something recently?"
"Master is indeed quite busy…" Reisen answered with a subtle expression. She was having sex with Kars almost every day, with an incredibly high frequency, even taking up some of their time, leaving them with no chance to enjoy Kars.
"I see… then Eirin must be in the lab."
"Wait, wait, wait! Princess, are you going there!" Reisen's expression immediately became panicked. After all, the situation there was currently something Kaguya absolutely could not see. If she went there, wouldn't everything be ruined?
"Yes, is there a problem?" Reisen's reaction made Kaguya slightly confused. It was a perfectly normal thing, so why was she suddenly so nervous? Could there be some unspeakable secret? Thinking of this possibility, Kaguya's expression instantly became serious.
"Ah, no, that's not it! She's currently conducting a drug experiment, so it's not appropriate for you to go there." Reisen realized her reaction was suspicious and quickly explained to prevent Kaguya from suspecting anything.
"I'm just going to take a look; what's the big deal?" The more Reisen reacted like this, the more curious Kaguya became. She then headed towards the lab. This made Reisen very anxious, but she could do nothing but pray internally that Eirin Yagokoro had already finished; otherwise, she would hear her voice from outside.
With an anxious heart, Reisen arrived near the lab and heard no sound, causing her to sigh in relief. When Kaguya opened the door, she saw Eirin Yagokoro sitting behind a desk, looking at two documents in her hands.
"Princess? You finally decided to leave your room?" Eirin Yagokoro saw Kaguya appear and smiled warmly, looking exceptionally happy.
"Mmm, but Reisen said you're conducting a new drug experiment. Is it something special?" Kaguya glanced around the room and then focused on a container filled with golden liquid. Even from its appearance, it looked extraordinary.
"Yes, a panacea that can cure all diseases and even promote bodily evolution. That's the raw material."
"That amazing?" Kaguya was surprised to hear this, and she moved closer, wanting to observe what was special about the golden liquid.
While her attention was completely drawn away, Eirin Yagokoro's expression changed, revealing a look of pure enjoyment. This scene immediately made Reisen nervous. She also saw that the documents in Eirin Yagokoro's hands, which were blocking her front, revealed a gap when her body slightly swayed, showing her naked chest and two hands clutching her breasts behind her.
Reisen instantly realized that Eirin Yagokoro was still having sex with Kars. After getting a little closer, Reisen saw Kars sitting on the chair, completely blocked by Eirin Yagokoro's figure. Eirin Yagokoro, with her lower body naked, was continuously engulfing and spitting out Kars's cock with her love-juice-soaked pussy.
"The Princess is right in front of her, and they still haven't stopped. How audacious…" Reisen inwardly lamented, but at the same time, she felt a desire to try this herself. However, she knew that if it were her, she probably wouldn't be able to maintain the disguise at all.
Eirin Yagokoro also seemed unable to keep it up and leaned onto the desk. If Kaguya were to look over now, everything would be exposed. However, Eirin Yagokoro was not afraid of this situation; instead, she became even more excited.
"The Doctor seems to enjoy this kind of thrill… so, should I make a little noise?" Kars put a little more effort into his movements, making his cock churn more intensely inside Eirin Yagokoro's pussy.
"Aah~" Eirin Yagokoro covered her mouth, her expression becoming more and more intoxicated. Although she knew this was inappropriate right now, she couldn't say no. Instead, she further enjoyed the stimulating sensation. This current pleasure was even better than before.
"So good… I completely can't resist this feeling…"
"I'm going to cum… Doctor."
"N-no, not now… if you cum now… I definitely won't be able to hold back…"
"That's what you say, but Doctor, your pussy is clamping onto my cock so tightly. That doesn't sound like resistance at all. I can't hold back anymore…" Kars forcefully plunged his cock into her pussy, and semen immediately surged out, instantly filling Eirin Yagokoro's womb. The resulting satisfaction finally made Eirin Yagokoro unable to contain herself. Just as she was about to cry out, Reisen immediately pressed her mouth against Eirin Yagokoro's. In the end, only a faint whimper escaped, and her body, which was slumped on the desk, trembled slightly, preventing Kaguya from noticing anything amiss.