Once most of the impurities were about to surface, Lith demanded to be blindfolded and that either Elina or Rena witnessed the process.
Tista was just a kid, and Lith feared that overtime suspicions might arise. During Earth's middle ages, incestuous relationships were disgustingly common, and he rejected even the idea of being thought of as a pervert.
The second and last phase required Tista to be soaking in the wash tub, that had been previously filled by Lith with hot water and soap.
He clearly remembered the stench the impurities gave off, and during winter ventilating the house was difficult, especially in Tista's condition.
Cold was her worst enemy.
Then, he could finally extract the impurities by using mater magic, creating and manipulating flows that would massage Tista all over her body. Lith would destroy the impurities as soon as possible with dark magic, preventing them to release their smell.
It was a difficult process that required using water and darkness magic, all while keeping Invigoration active. After the treatment, he would also use water magic to remove all the water still on her body, and then mix fire and wind magic to obtain a makeshift hairdryer.
When it was finally over, Tista looked like she was just back from a spa, while Lith looked like he had just got back from mining, drenched in sweat and out of breath.
"How do you feel?"
Tista made some deep breaths.
"I never felt so good! Like, ever! Also, I always dreamt of having a winter bath, instead of having to resort to warm water-soaked towels. Thanks, lil bro, you just made two of my wishes come true!" She tried to hug him, but he raised his arms in defence.
"Please, no. I'm disgusting right now, do not ruin my hard work. I now need a bath, some food and two hours rest, minimum."
Both his mother and big sister, nodded.
"Lith, dear, what was that thing with the water that you did?" Elina asked.
"Do you mean the…"
"Dammit, I can't tell her I was imitating a hydromassage, they do not have latin here. Nor I can call it a Jacuzzi or something. Whatever, I'm too tired for this sh*t."
"… water massage?"
"Yes, that! It seemed so relaxing. Tista has fallen asleep many times during her treatment. Sure it must be pleasant." Rena's words were filled with expectation.
"And that thing for drying her hair, could you do that again too?" Elina raised the ante, their aim more and more obvious by the second.
Lith was on the verge of collapsing, he had no time to spare with niceties.
"Are you implying that you would like a hot water massage too?"
More nodding followed, their hands joined in a silent plea.
"But… but…" Lith stuttered. "Both of you are…"
He was trying to find a polite way to say "hot". Lith could still remember Elina's naked body when he was still an infant, and she had aged very well.
Rena was now eleven. Maybe it was the countryside lifestyle, maybe it was related to the new world, but she had already begun her growth spurt, developing some curves, being nice and soft in all the right places.
Lith already had so many qualms for his little sister, and Tista was as flat as a board, only her long hairs gave her away as a girl instead of a boy.
"We are family. And all of us have dreamt of being able to take a bath during winter without catching a cold or worse. You have no idea how smelly we become by working in the barn, surrounded by the livestock smell and their dung. Sometimes the smell is so bad we can't even sleep at night. Couldn't you help us too?" Elina, his mother, completely oblivious of Lith's worries tried to play the guilt card.
Lith gave up.
"Fine, just let me rest a bit and then I'll help you. But you still need to blindfold me, and I demand a witness!"
They both started laughing out loud.
"Why so many qualms? You are just a baby, not some thug."
"I would like to say that I am a gentleman, but I do not know the word for it. I could say that I am a man, but that would make them laugh even harder. Stupid five-year-old body." He thought.
"Decorum." It was the only word in his vocabulary he could resort to.
"Damn, this is going to be a fricking long winter."