chapter 108

"...Thank you Naruto," His mother said earnestly, wiping her eyes of a few stray tears, "You know just what to say. Here, these must be digging into your back..."

Naruto hid a happy grin as he turned his head to look at his mother backing up a little and unzipping her shorts, slowly drawing them up and off her long legs, giving a very distinctive set of curves on her ass and pussy. She smiled at his as she set them down and drew back in to hug him from behind.

"There, nice and cozy for my favorite little son." She kissed the top of his head happily, and nuzzed the back of his neck, "Now, let's get back to that lesson… thank you again Naruto."

"It's okay. I love you, Kaa-chan."

"I love you too, Naruto. Now, for determining the nature of a seal, you'll want to start off with layers. Put the symbol or kanji that you want to be expressed in the center, before connecting it to others to 'show' how you want that concept to be done. For instance…" she leaned in to sketch the kanji (Hi) for 'fire,' "if you want to create something with a fire, you start by putting this in the very middle." She drew a perfect circle around it. "Next, draw more characters and connect them-" more circles, this time with wavy lines connecting them to the middle one, "-like this. See? Basically, you're telling the seal to 'create: fire.' Of course, it won't activate on its own; you need to put in chakra for that, but you get it, right?"

"R-right," said Naruto, biting his tongue in thought.

"Whatever 'concept' you want to add needs to have very specific modifiers added to it in order to be realized properly. Like, you can't just put 'water' and expect the seal to 'know' what you want done with it. You need to link in extra characters such as 'create,' or 'absorb' or even 'freeze' if you're clever about it, but even then, those special characters might need more to specify what exactly it means, this can go on and on until it will reach the intended result you want. But, it can also be very draining since the more complex the concept you are trying to make, the longer it'd take to make the seal, which can be lethal in the middle of a battle. Simpler seals take a lot more chakra to power due to the concept needing bridges to build the gaps. Oh, one other thing you can do with the center character is…" she carefully wiped away a small part of the middle circle and added a tiny circle to overlap with it, "You can directly modify the concept to be more specific. Changing the color of a fire, increasing the area of effectiveness for the overall seal, or even accelerating the process of the seal itself."

"A-Accelerating?" asked her son, his brain starting to overload.

"Eh? Ah, sorry, sorry! That's a bit of the more advanced stuff," Kushina apologized, blushing as she realized she'd been slipping into a mindset that required more knowledge to follow. "I'll… get back to this when you become a third year or maybe graduate, the point is, you can do a lot with Fūinjutsu. The only limits would be time, and chakra. Thankfully, you have as much time as you can with both between missions in the future, so don't be afraid to experiment… b-but make sure I'm there with you. I don't want you to accidentally try any explosive Kanji…"

Naruto chuckled nervously along with his mother, both of them imagining the many ways that could go wrong. "Well, I guess that's enough for now!" groaned the redheaded woman, stretching her arms over her head, "Come on, I'll make some snacks."

"Okay!"

They both got up and walked toward the kitchen. Naruto found his eyes drawn once more to his mother's panty-clad rear. As she opened the fridge and bent over, he decided to be a little daring and place his hands on top of the lower small of her back, thumbs just brushing over her clothed private area. Kushina didn't really mind, as she had been hugging him partially naked for the better part of an hour, and was determined to find those snacks.

"Hm…we don't really have anything all that special to drink. Ne, Naruto, do you want milk or orange juice…?" she asked, glancing back at him. She froze as she spotted something out of the corner of her eye. "Ah…A-are you alright?" she asked carefully.

Naruto blinked. "Eh? Y-yeah, why?" Then he looked down and his eyes widened. Oh shit! Without even noticing it, his boner had returned, Did it even leave in the first place?! and was tenting his pants leg most conspicuously. Somehow, he hadn't even noticed its presence when he'd gotten up.

Slowly, Kushina stood up before turning around. "Naruto," she said, her voice shifting to a dangerous timbre, Naruto gulped as he was backed into the counter, in over a decade, Kushina hadn't gotten seriously angry, and even now she wasn't really directing it towards Naruto, but for a moment she nearly reached her peak 'Demon Kushina' anger.

It was a good thing that the Uzumaki family invested in soundproofing seals for this very situation.

"WHY IS YOUR PENIS HARD A WEEK EARLY?!"

GoF