Disclaimer: First Chapter
Triple chapter update today!
Story Start!

"Naru-tan! I've come to play with you today!"

Serafall did not even hesitate to open Naruto's front door, since she knew he didn't bother locking it. She didn't blink twice at the action, she was just excited that she had been able to get a day off of filming her show, and that since there was going to be a meeting with the Grigori next week, that everyone was taking some time off to prepare for a mentally taxing meeting. She was going to be using this time to visit her favorite human, and see her little sister, since she had two days off technically.

TWO of them, and in a row!

"Raaaaah!"

"Come on, keep going ya know." Shizuku sat on Naruto's back, her body a little more wet than normal as she wore a see through white dress, and pink panties. She was comfortable, since Naruto was off from school for the day and using it to take control over his willpower and strengthen it. She had spent several days on the internet, looking up good willpower training methods.

She was going to use all of the methods.

The first method was training your body daily, since choosing to get exercise every single day built up good habits, and helped to reign in desires to break away from those habits. By being able to force himself to exercise every day, Naruto was also training his muscles which was very good for him seeing as his other ability to Martial Arts mastery. His body was already stronger than the regular human, so she was adding to the difficulty.

She was sitting on his body, his shirtless body, and since she weighed about barely even 70 lbs... she was making him do a very large number of push ups to compensate even further.

"I've already done 1,000 push ups, my arms are dying ya know." Naruto's verbal tic slipped out as he shouted at her. At first, doing them with her on his back was nothing, but then it got harder and harder as he used up more stamina. At first she was like a feather, and now it was like she was iron on his back.

Serafall didn't know what to make of this.

She just ran over to the TV, turned it on and put one of the DvDs she brought with her, before she jumped on Naruto's back. He collapsed to the ground underneath the added weight.

"Come on Naruto, keep going until this episode is over!" Serafall hollered as she waved her arms up. The opening theme was already starting, and Naruto was groaning underneath them.

Naruto groaned, before he put his hands on the ground fully, and started to push up with even more of the added weight on his back. Though, now he had TV to watch as well. Shizuku saw he was distracted, so she scooted around on his back, took her panties off, and shoved them on his head in a way that blocked his eyes.

"You're training ya know." Shizuku reminded him as she turned to face the TV as well.

"So he's training huh? I'll add mine too!" Serafall slipped her own panties out, and put them on top of Naruto's head too. She didn't know what Naruto was training, but she was happy to help her friend out by adding to the difficulty level.

Now, unable to watch TV, and a lot more added weight to his back, Naruto was moving both slowly, and and his muscles were burning. Shizuku and Serafall both situated themselves to sit comfortably, Serafall with her legs crossed, and Shizuku sitting on his butt.

The door opened... again.

This time, Kuroka felt some annoyance when she saw her sister, and went into the bedroom so that she wasn't spotted. Koneko looked around the apartment when she got inside, and saw Serafall and Shizuku sitting on Naruto.

"Naruto, since... what is going on?"

"He's training... come help out ya know." Shizuku situated herself, and pulled Serafall closer to her, so that Koneko would have room to sit down on top of Naruto's back.

"No!"

"... I'll do it..." Koneko heard Naruto reject the idea, so she was suddenly all for it. She went over to him, sat down on his upper back, and made herself comfortable. She forgot what she had come over to tell him, and watched whatever anime that Serafall and Shizuku were watching. She tuned out Naruto's grunts of pain, since now he had so much more weight on him.

"Okay Naruto, is says here that to increase willpower, you also need to resist temptations to eat healthier foods by choice ya know." Shizuku stated, knowing that she was going to be cooking healthier meals for this reason. She was going to do that anyway, in all honesty, but she had seen his stores of cup ramen that he built up.

Naruto groaned loudly.

"Oh! This is willpower training! That sounds really cool, make sure you take some days off of training Naruto! Willpower is like a muscle, if you overuse it you will run yourself dry!" Serafall reached around Koneko, and pat the top of his head. He would cause himself to go nuts if he trained his willpower without rest. "Hahahahaha!" Serafall started to laugh when she saw something really funny happen on the TV.

Koneko raised an eyebrow.

You could train willpower by training your body?

-[23 Minutes Later]-

"Uuuuuh... finally..." Naruto collapsed with the three girls on top of him, when the end credits were finished rolling. The next episode was starting, and he was dripping in sweat to the point he was more soaked than Shizuku was. Most of his muscles were aching from overwork.

Koneko stood up and moved to the couch, but Shizuku and Serafall took an extra moment. With Shizuku moving towards the kitchen, watching as Naruto stood up with a struggle and groan.

"Go take a bath, I'll make lunch ya know." Shizuku gave no inflection to her voice as she gave the orders. She he was going to take a bath, not a shower, to give her the time to work on the meal. Not to mention his muscles could use the relaxation after they were pushed so far.

His final push up count had been over 2,000 after he had been allowed to stop, she had been keeping track.

Naruto just groaned and walked towards the bathroom, with Serafall thinking on it for a moment.

"So... what is this training for?" Serafall didn't even know the root cause for this willpower training. She was just happy to help, the reason why was only an afterthought after all.

Koneko looked at Shizuku.

"Naruto's powers are willpower based, the stronger his willpower, the more powerful his powers ya know." Shizuku was aware that every person in the room knew about his powers at this point. Serafall blinked, before she smiled widely and nodded her head excitedly.

That made sense to her, training your powers was completely needed to survive in the supernatural world. She would be more than glad to help her friend get stronger, though he really should have come to her for advice first.

She was a totally badass magical girl!

"I thought his powers were immature?" Koneko spoke those thoughts out loud, seeing as this wasn't exactly going to help.

Shizuku ignored her.

"Well, increasing his powers while they are immature, is a good way to increase his latent potential, even if it doesn't do much for him now." Serafall was hundreds of years old. She knew very well that if you pushed yourself while your powers were immature, then it didn't do too much for you. What it did in actuality, was increase your latent power. That way, when your powers did mature more, you had a larger pool of potential to reach.

It was training in order to increase long term strength, which also helped to lay down the prep work for making training a little easier in the future.

Not all training would grant instant results after all.

'She is smarter than she looks... though... being an oppai loli is just cheating.' Shizuku thought as she looked over the Leviathan. Her loli-like appearance was one thing, but combine that with her massive chest size, and it was an insult to loli-type bodies everywhere.

Koneko remembered why she came.

'... I still don't understand why Rias wants me to get closer to Naruto... he is just going to reject her offer again and again. He doesn't respect her, and her trying to manipulate him won't help.' Koneko, in her short time with Naruto, knew that with him you had to show him with your own actions. He wasn't the type to just listen to pretty words, and follow a person.

She was suppose to invite Naruto to go to a convention with her, so that Naruto would become closer to a member of Rias' peerage, and see Rias in a better light.

It wasn't going to work.

-With Naruto-

"I'm used to training... but ow." Naruto groaned as he situated himself down, getting ready to wash himself off before getting into the tub. Moving his arms at all was a pain, but he didn't want to stink up his apartment by not bathing either. Naruto let out a sigh of relief as he poured cold water on his back, the coolness actually pretty soothing at the moment.

"Hey Naru-tan." Serafall's voice through the door called to him.

"Yeah, yeah... I'll be sure to wash my sweat out of your panties before giving them back, I know." Naruto didn't even hesitate in thinking that was what she was getting at. Both her and Shizuku had their panties soaked in his sweat... though Shizuku's body was always pretty wet, so hers were soaked anyway.

The door opened up, and a butt naked Serafall walked in like it was nothing, plopped down behind him and grabbed his shampoo.

"Oh, don't worry about that Naru-tan, you just worked really hard, so I want to help you out!" Serafall started to scrub the shampoo into his hair. She knew that what he did, even more so for humans, was really amazing. He had been exhausted even before she got to his home, and then she pushed him even further, almost... literally more than tripling his weight load with her and Koneko's added weights. Then they made him keep going until the first episode was over.

He had done over 2,000 push ups, with a lot of weight on his back, his arms were going to be super sore.

"I'll be fine by myself." Naruto's cheeks started to turn red when he glanced in the mirror, and saw the reflection of her naked body peeking out behind his own. She was just smiling innocently, not even minding the fact that she was bathing with him.

She puffed her cheeks out, and sent him a sour pout.

"... Just accept my help Naru-tan, it won't kill you." Serafall poured ice cold water on his head to rinse him off. Naruto felt the cold water wash over his entire body, even colder than before, and let loose a shiver.

Naruto felt her use her hands to rub the soap into his body, lathering him up, before she hugged him and used her hands to lather his chest up. With her big, soft breasts against his back as she washed his torso. He just gave in and let her do it, and washed his legs and lower body himself.

Serafall filled the bucket with ice water again, and when they were done, she poured it over the two of them. She hopped up and jumped into the hot bath, and allowed herself to contently sigh. Naruto used his hands to cover himself up, and he joined her in the hot water.

"Uuuuuuuuh." Naruto's body appreciated no longer being cold, and the heat was doing wonders for the soreness he was feeling. He sank into the water, and Serafall watched his smile grow, as her own smile grew even wider. She layed down in the water, breasts floating as she did so, and used a hand to pat her chest.

She was inviting him.

"Come on, lay your head down. You've earned a nice rest after that work out." Serafall spoke kindly, though still very excitedly.

Excited was her natural tone of voice.

Naruto looked at her, his blood was pumping a little faster, but he nodded anyway and turned around. Scooting back, he layed himself against her so that almost all of his body was in the water. Only his head outside of it, resting against her breasts as she wrapped her arms around him.

'... This is... really nice...' Naruto did not, and would not, say it out loud. He just closed his eyes, and let out a deep sigh of comfort. Her pillowy soft breasts, straddling either side of his head. The warm hot water soothing his aching muscles, her gentle hands on on his torso as she kept him from sinking any further into the water.

Hell, even the soothing way she was humming that magical girl music, was musical to his ears as he just... gave in. He was sure that if he wasn't so tired, and his body so sore, he would have rejected this. But, in his current state, he just couldn't find it in himself to resist her as much.

He fell asleep... and when she felt him go limp against her, she bent her neck to look into his face. She saw he was out, and she just smiled and allowed herself to close her eyes and relax as well.

'I was going to ask him to join my Peerage today too... I guess I'll wait until he is more used to the supernatural. I'm not sure if he knows about Devils or not. Having him like this, it is kind of like having a little brother.' Serafall had never had a brother, but after she met Naruto, she just clicked with him. He allowed her to be herself, but he also did control her a little. She knew that she could get out of control sometimes, and it was hard for her. She had little self-control, and Naruto was a good for her.

He kept her somewhat tame, allowing her to be herself, but keeping her from going overboard. That was a good combination, where she could have fun, but still keep herself in check.

She didn't want him in her peerage because he had power, honestly, she was going to ask him to join even before that point. She wanted him for her peerage, because he was good for her. He was somebody she felt she could trust to help her manage her life better, and she felt like if he joined her peerage, he would be much happier as well. She wanted him to find a family, and she was more than happy to welcome him into her own.

Him having power didn't matter to her in the slightest, if anything, all she would ask him to do was use his powers and join her TV show. She already planned on asking him to become an actor in her show anyway.

"... I should introduce you to Sirzechs-tan... I bet you two would get along super well." Serafall, the next time she came over, should invite her dear friend. It would be nice for Sirzechs to get away from his work, though, he had a family of his own. She had no doubt that he would prefer to spend his free time with them, instead of meeting some unknown boy.

The water shifted, and Serafall noted that Shizuku formed under the water, and allowed her head to break the surface. She was naked too, and she glanced at Serafall with a raised eyebrow. She ignored the woman though, and allowed herself to make herself comfortable against Naruto. She was done cooking lunch, but she would allow Naruto a 15 minute nap.

Even if she had the share the tub with an oppai loli.

Chapter End!
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