The Handover of Intimate Duties
As the moon rose bright and full, the responsibility of caring for Tang Hwi was officially handed over from Tang Ga-hui to Tang Ga-in. Aside from the fact that she had to relieve him once because his healthy, adult body refused to let his erection subside, Tang Ga-hui had meticulously instructed her younger sister on every single procedure she had performed. To any observer, her attitude seemed like that of a devoted family member simply ensuring the patient was well-cared for. Yet, Tang Ga-in felt a strange sense of dissonance regarding these routine actions.
"So, at that time…." Even as she focused on Tang Ga-hui’s instructions, Tang Ga-in couldn't shake the unease that made her keep glancing at her older sister. 'Something is… off!' Tang Ga-hui was no different than usual. She was still the same gentle, sincere person who cared deeply for her family and her younger sister. But for some reason, today, she felt less like a 'family member' and more like a 'woman.' If it had been a few days ago, she might not have noticed the subtle difference, but now that she had been ravished by Tang Hwi and had come to know the pleasures and joys of being a woman, things were different.
Having been transformed into a 'woman' herself, Tang Ga-in pierced through the facade, noticing that Tang Ga-hui’s breathing, her hand gestures, and her overall aura were subtly more feminine than they had been just hours ago. They certainly hadn't engaged in intercourse; if she had been penetrated by that massive member, there would at least be a lingering, subtle ache in her lower body. While Ga-in herself had been lucky enough to consume a vitality-restoring pill she kept for research purposes, allowing her to hide the evidence from her family, it was hard to imagine that Tang Ga-hui, who had been in seclusion for years, would have access to such a thing. In other words, Tang Ga-hui’s virginity remained intact, yet she exuded an unmistakably feminine air. How could that not feel wrong?
'Wait… "subtly" feminine?' If they had shared intercourse, there would have been traces or physical reactions. Since there were none, yet she still carried that aura, it meant… they must have stopped at manual or oral stimulation. Tang Ga-in’s mind raced. Her Sangdanjeon (Upper Dantian) was reacting to her emotions. The jealousy burning toward Tang Ga-hui, the internal admission that she was in love with Tang Hwi, and the way the energy of the Yin-Yang Essence (음양정자) had melted and mingled within her Hadanjeon (Lower Dantian) were all fueling this. Without even realizing it, she was falling deeper for Tang Hwi, and her true feelings were surfacing. As the Yin-Yang Essence and the internal energy of her Dantian merged, approaching a state of trinity, her Sangdanjeon was inevitably stimulated as a side effect.
'Manual stimulation… if she didn't use her yoni, does that mean she used her hands or her mouth?' Even before Tang Hwi had lost his memories, she had been the one to treat his Heart Demon (심마) by draining his semen every day or two. She knew how inevitable it was to share his body, and she had learned that there were many ways to extract his seed without needing to use a woman’s lower opening. A man would shoot his load just from being stroked by a hand, and if one attacked with mouth and breasts, he would be helpless to stop himself. But Tang Hwi was currently regressed—not quite to infancy, but close enough.
'His body is a fully grown adult, but his mind is that of an impatient child. …Ah. So that’s why she relieved him?' Her rapidly turning brain finally reached the correct answer. Tang Hwi’s regressed mind could not control the carnal desires of his fully matured body. He had assaulted her with his Heart Demon even before losing his memories; it went without saying that he would be even worse now that his mind was young. He must have been helpless against his own lust, his member standing tall, and Tang Ga-hui must have waited for it to subside before realizing it was a futile wait and taking matters into her own hands. In doing so, she must have been startled by his intense virility, inadvertently awakening her own instincts as a woman—just like Ga-in.
This couldn't continue. 'At this rate, my sister… my sister will fall into his clutches! I have to stop it.'
"Ga-in? Are you listening to me?"
"Yes, I’m listening. You said since he has trouble moving, if he seems like he needs to relieve himself, I should use the pressure point technique to put him to sleep, take him to the latrine, and wait outside for half a shichen, right?"
"Yes. You heard me correctly. I’m sorry for doubting you."
After a brief explanation, Tang Ga-hui finished the handover, told her to take care, and left Tang Hwi’s room. Tang Ga-in watched her sibling leave with a slightly listless gaze, then moved to the side of the bed where Tang Hwi was sleeping. She sat in the chair Tang Ga-hui had occupied all day. Her buttocks felt as if they were being warmed by the lingering heat of the chair, as if someone had been sitting there until just a moment ago. While she wondered if Tang Ga-hui was really such a passionate woman, she also thought it was entirely possible if her suspicions were correct. Tang Ga-in stared intently at Tang Hwi, who lay on the bed.
Seeing him sleeping so soundly with an innocent face, she felt a sudden, sharp annoyance at the shameless sibling who would lay hands on his own kin. Tang Ga-in did not realize that this was not resentment, but jealousy.
Poke.
"Pfft."
She reached out a finger and poked his cheek. The air that had been trapped in her mouth escaped through her parted lips.
"…Ung?"
Perhaps because she had poked his cheek, Tang Hwi woke up. He looked at her with dazed eyes, the sleep not yet gone, and she found him incredibly cute. Usually, he would be shoving his member at her like a dog in heat because of his Heart Demon, but seeing him so pure now made her want to laugh.
"Who… Ga-in?"
"Why, brother? Just try calling me 'Noona'~ Pretty Noona~!"
"I, I don't want to!"
Perhaps the sleep had finally cleared, for he jumped in surprise and whipped his head away. But did he think avoiding eye contact would work? His neck and earlobes were already flushed red like a ripe fruit, and Tang Ga-in couldn't stop herself from smiling. It was fun to tease him when he reacted so innocently. Seeing the sibling who used to ravage her like a beast now helplessly whining while his cheek was poked by her finger brought her an inexplicable thrill.
"Stop poking me…! You snot-nosed brat!"
"I’ll stop if you call me 'Pretty Noona' just once."
"Th, that’s…?!"
"Come on. Try following after me. Pretty Noona~!"
"……."
His indecision was incredibly cute. She kept poking his cheek to urge him on, and eventually, Tang Hwi waved the white flag, muttering in a tearful voice.
"Pre, Pretty Noona… Stop poking my cheek…."
"……."
"Ga-in?"
Her eyes trembled, and she suddenly leaned forward. She wrapped her arms around Tang Hwi’s head, pressing it into her chest—which, while clearly smaller than the other women in the family, was still of average size—and held him tight.
"Kyaaa!! Our useless brother had such a cute phase too!"
"St, stop…!"
"Yes, yes. There, there. Do you want some milk, brother? ……Hmm?"
He was cute enough to make her heart melt. Moreover, perhaps because she had grown accustomed to the depravity of incest, she began rubbing her breasts against his face, coddling him—and then, something of a familiar length began to rise beneath the blanket. Seeing that, the excitement she felt at Tang Hwi’s cuteness vanished, and an inexplicable spark ignited deep within her chest. After all, the fact that his member had become erect so easily only increased the likelihood that her suspicions were correct. Tang Ga-hui must have relieved him with manual stimulation to calm his erection.
"Hmm. Brother, can I ask you something?"
"Wh, what is it…!"
Tang Hwi answered earnestly, even while struggling and twisting his head to escape from Tang Ga-in’s embrace.
"Your… your 'thing' is big right now. Was it like this just a moment ago, too?"
"Just now? …Oh? It really is big, isn't it? Noona treated it for me, but it stood up again."
"……."
A dark shadow fell over Tang Ga-in’s eyes. Tang Hwi’s careless remark—[Noona treated it for me, but it stood up again]—confirmed her suspicions. Tang Ga-hui hadn't been confident enough to have intercourse with Tang Hwi, so she had simply disguised it as a medical procedure and drained his seed. 'How can you be a sister and drain your own younger brother’s seed!? This is immoral…!'