Rei sat in the living room reviewing the copied disassembled versions of seals that kept Kaguya a prisoner in the moon. This was his main project for quite some months now and he was making albeit slow, but acceptable progress, immensely pleasing the Rabbit Goddess who always watched with rapt attention when he was doing this.
Honestly, it surprised Rei how driven the woman was to learn more about her proverbial prison shackles. For a princess who never bothered to master her inner power, her desire to better herself startled Rei. Then again, who was he to prevent her?
It didn't matter to him anyway. Hagoromo had quite a lot of knowledge of old sealing arts that didn't really use chakra but nature energy. Studying these seals gave Rei a massive overview of how sealing worked before the humans in the Elemental Nations 'received' chakra and were taught how to utilize it.
Sealing arts were very old practices that changed drastically over the past millennia. That was actually the main reason why Rei's progress was slow. He was basically rediscovering a long-lost way of sealing with no guidebook, relying only on deconstructing very complex seals. while trying to glean the secrets behind their making.
That was the main point why Rei didn't mind Kaguya learning how to prevent them from affecting her again. The modern way of sealing was far too different so even if she knew how to disrupt this archaic one, Rei still had a working trump card against her.
Or... at least, that was his initial intention but the more insight he got to her head, feelings, and thought process through their mental connection, the more he realized he would most likely not need it.
Then again... better safe than sorry.
As he was browsing through some papers with drawn parts of a particularly hard-to-decipher seal, he was suddenly embraced from behind by a pair of gentle hands sporting nails decorated with blue nail polish, instantly revealing the identity of its owner.
Rei's lips curled into a smile, "Hello, Konan," He gently put his hand over hers. "How was your day?"
"Izumi was being difficult. You just couldn't help yourself and tease her when she was giving you her report, could you?" Konan said in a mock accusing tone without any heat behind it as she placed her chin on the top of Rei's head, leaning against him.
"Well, she is just so easy to tease I sometimes find it hard to resist," Rei chuckled, getting an amused eye roll from Konan while her lips slightly curled. "Not to mention, I am well aware of your intentions." He nonchalantly added, causing Konan's eyebrows to twitch.
"Haa~, I guess you would be, wouldn't you?" Konan resignedly remarked, lifting her chin from his head while her hands moved from the embrace onto Rei's shoulders as she started to rub them, "I admit that starting to invite her to our family dinners was not the subtlest move. Aren't you going to ask why though?" Curiosity seeped into her tone.
"I don't need to. You clearly care about the girl. Considering our familial arrangements worked all these years, you probably don't see any problem with having a new addition to our family." Rei wryly shook his head.
He wasn't exactly pleased with this discussion. Especially not with the silent observer who was extremely interested in the topic and most likely forgot Rei could feel when the mental connection between them was open.
Before Konan could start speaking again, Rei continued, "I guess you already roped Tsunade in since she helped with elevating Izumi's strength. The Uchiha clan might have been deceived but seriously? She didn't really need an Uchiha to try experimenting with the Senju bloodline. If my assumption is correct, you wanted to grant Izumi the ability to easily access Senjutsu. Am I wrong?" Rei narrated in an impassive tone, lifting his eyebrow in curiosity about the correctness of his own hypothesis.
"Uh... That didn't go exactly according to the plan." Konan sheepishly chuckled. "Still, the results were extraordinary and the girl did get stronger."
"That so..." Rei hummed in agreement, "Since you have Tsunade already persuaded, the only problematic person would be Pakura, considering both Mei and Ringo see you and Tsunade as their quasi-parental mentor figures and would listen to you. Not to mention Ringo would most likely not care as long as I don't stop caring for her while Mei is quite close with Izumi."
"Pakura already agreed." Konan's eyebrow twitched in annoyance as she said that.
In Rei's harem, Konan was basically the leader. She was with him the longest and was arguably strongest out of all his girls. Frankly, it was questionable who would win between her and Tsunade but Tsunade was never interested in being dominant. Pakura was the only one who occasionally challenged Konan, and to be honest, it was a breath of fresh air for the bluenette.
If Tsunade disagreed with her, she would simply ignore her opinion. If Mei disagreed with her, she would simply pretend to not understand until she made Konan annoyed enough to give it up. If Ringo disagreed with her, she would simply turn around and go back to her forge, giving Konan a silent treatment. That said, all three of those held Konan in high regard, and them disagreeing seldom happened. Even then it was quickly resolved.
Pakura was different. She didn't grow up or live with them for years before she became a part of Rei's harem. As such, she was the only one who still didn't have her own way of preventing arguments and opted to actually argue with Konan about certain decisions. Honestly, it really helped as Konan knew she was not infallible, and having a different perspective on things usually helped to reveal errors she might have overlooked.
"Ah, yeah, considering she is also raising her little windy murder machine to one day join our little family, I can see why she would agree." Rei's lips twitched into a shadow of a smile before he shook his head in amusement, "She really started to care about that girl."
"Are you okay with that?" Konan asked in worry, "We are basically trying to force you to take more women without asking you about your feelings."
"Well, if you tried to force me to accept them, I would be pissed." Rei dryly pointed out. "This awkward matchmaking maneuvering of yours though? I am honestly amused and willing to give Izumi a chance." He shrugged, "Doesn't mean I will accept her. I guess we'll just have to wait and see where it will lead us."
Konan showed a sincere smile due to his answer and leaned around his head, giving his cheek an appreciative kiss. "Thank you."
Rei closed his eyes with a sigh. 'Great. Now I won't be able to focus.' Putting down the papers, Rei slowly turned around to face the quietly smug Konan as she licked her lips, knowing her kiss made his focus go bye-bye.
"You minx, you are basically asking for it with those seductive amber orbs of yours." Rei exasperatedly whispered and before Konan could reply, his lips smashed against her as he pulled her body closer to his, hauling her around the backrest of the couch as they made out.
After a few moments, Konan pulled away enough to break the string of saliva that was connecting them and straddled Rei whose back was pressed into the couch. She put her hands onto his chest, feeling up his muscles without breaking their eye contact. It greatly pleased her when she saw the raw desire in her lover's eyes. Even after all those years together, she still evoked the same lust in him as when their relationship started. Then again, her eyes no doubt showed the exact same want if the way she felt was any indication.
"I have no idea what you are implying. This is all purely educational. I am just showing Kaguya how to keep her man happy." Konan quipped, causing Rei to chuckle as he could feel Kaguya's embarrassment.
Needless to say, the mortified but guiltily curious Rabbit Goddess didn't cancel the mental connection, witnessing the couple having their intimate fun the whole night.