Chapter 123

Kushina gave a final punch to the dummy, before turning around, smiling at him, "Oh, welcome home Naruto…and well, as much as it would be more comfortable, when I'm moving around constantly, Kaa-chan's breasts can feel really sore, so it's best I wear this. Nn…" she pulled at the sweat-soaked fabric slightly, "Although, my bras have been feeling a bit tighter than usual, dattebane…"

Naruto could tell; the fabric was practically stretched around her assets, with the distinct outline of her nipples poking through. Close up and from the right angle, he could even see the bare underside. He reached forward and felt up her rear. She didn't protest as he felt around her ass like his personal toy.

"Why do you have to wear the bottom then? That should help with your heat building up."

"Well…it seemed a little silly to take off the bottom and keep the top on, you know?"

The boy shrugged. He himself had done that with the girls when pressed for time. "Anyway, Kaa-chan, I was thinking…could you teach me some more about Fūinjutsu today?" he asked politely.

Of course, this did wonders, as his mother beamed at him and ruffled his hair. "Of course Naruto! Just let me go shower off first, then I'll join you, okay?"

Naruto was sorely tempted to ask to join her, but held off. That could be accomplished another time. "Sure, Kaa-chan," he said, smiling back at her, "Oh, and would it be alright if Hinata-chan and her sister came over tomorrow?"

"Eh?" Kushina paused to process that, unconsciously adjusting the short-shorts riding up into her ass-crack, "Well I suppose…Hinata and her sister? I suppose I can talk with Hara and have them over."

"Cool. Well, have a good shower, Kaa-chan."

She giggled slightly. "Of course, of course…"

GoF

Naruto made his way to the living room and sat at the kotatsu, still stark naked. He decided to entertain himself by imagining what his mom must look like in the shower… water pouring, streaming down all those MILF curves, highlighting them and making them shine wetly…

…He should have joined her, she wouldn't have minded at all now that he thought about it.

…And his dick was hard once more; it took a while due to the repeated uses throughout the day, but it got there.

"Okay Naruto, let's get started on that lesson." Naruto hid his lower half firmly under the blanket, and looked around to see his mother, hair slightly dripping of water and not minding at all that she had no modesty when cleaning her body with her towel. A few droplets clung to her here and there; Naruto followed one that went over her nipple quite slowly… Eventually when she was finally dry, she threw the towel over to the laundry basket, and sat behind him with her legs on either side of his. He could feel her warm, though currently unaroused pussy against his ass as she pressed her firm tits into his back. "Now, where were we?" she asked innocently. To her, these lessons were some of the most wonderful mother/son bonding moments she could experience.

Naruto leaned back, and felt his head get pressed between her tits quite nicely.

"Alright…now the next lesson is going to be about, well, small practical is the most commonly used seal there is, the 'Storage' seal."

"So, it lets you store things, right?" asked the boy.

"Yep. Basically the seal creates a sort of…gateway, to a pocket of space that can't be accessed in any other way. It helps against pickpockets or someone trying to steal something from you easily." She took an apple resting in the nearby fruit bowl, and then took out a roll of paper. "See, this is the basic diagram of a storage seal. You just need some chakra and then…" with a puff of smoke, the apple vanished, "It's stored. Not only that, but storage seals can be used in parallel with each other, so you can line a whole scroll with them. With it, you can store a great deal of objects on one without taking up too much space."

"Every storage seal needs a set of kanji describing how much space it can hold, however. You can't just write the workings of it and have it store an infinite amount. A basic storage seal will usually hold about as much as a holster of standard thrown weapons, or usually fewer large weapons. The more space you want it to hold, the more complex the 'language' has to be." She smiled down at Naruto reassuringly. "Ah, don't worry. Basic seals like that one should be well within your level."

"Do storage seals always have to be on paper?" he asked, one hand placed surreptitiously on his mother's warm thigh.

"Well, no, but storage scrolls are usually the easiest way to carry them. Aside from that, it is possible to get them tattooed, but there could be some problems. If the seal isn't drawn in the skin correctly, it might not work, or an injury might mar the markings, which could be catastrophic if you had something important or dangerous stored there."

"Why? Wouldn't it just, not work anymore?"

"Ah, well, in the case of storage seals, saying that it 'creates a gateway' isn't accurate, it also connects to that space and makes sure it keeps the object inside, so, if the seal is damaged in anyway…" She then took a kunai, which usually rested on the table, and pierced through the scroll.

A poof of smoke, and suddenly he found himself staring at the apple again, this time it was being pierced by the kunai, like it suddenly teleported around the space it inhabited. Judging by the way the fruit bulged around the intrusion, it was a good thing that hadn't been a living creature.

"Oh, also, living things can't be stored. Seeds, sure, but living things cannot survive inside a storage seal."

"I thought you said anything was possible with seals?"

She chuckled. "Yes…I suppose I did. Maybe in the future you can think up a seal like…" Her face frowned for a second, "Actually, if you do want to do that Naruto…make sure you ONLY test on animals, understood? This is important for you to remember Naruto, seals can go very wrong with the slightest mistake."

"Is that why they don't teach it at the academy?" asked Naruto.