Disclaimer: First Chapter
Story Start!

"Yoga?"

"Hell yeah, yoga class." Naruto responded to Gasper as he got dressed in loose fitting clothes, since for a technique he was developing, he wanted to see about learning some of the yoga from this world. He asked Rias to sign him up for a yoga class after school, and he also wanted to test his new bodies flexibility with yoga some. Nothing was a better check of your bodies limit than putting it to the test after all. "... but with my luck, Rias signed her entire peerage up-"

-At Yoga-

"-for bonding." Rias spoke in tight yoga clothes, showing off all of her curves and revealing the crack of her ass with just how tight her clothes were. She wasn't the only one with super tight, revealing clothes.

Akeno had a matching outfit.

"You look gay." Naruto stated to Yuuto.

Yuuto was also wearing extremely tight clothes, including shorts that might as well be as tight as a speedo. Yuuto had the decency to blush at his own appearance, before he pointed his finger towards Rias, who had picked out his yoga clothes, just like she picked out his swimsuit.

"She-"

"Like a total twink... also... dude... are you trying to kill your balls?" Naruto rubbed the bridge of his nose.

Koneko was wearing a loose fitting sweat shirt, and loose fitting sweat pants as well, and she just sent Naruto a thumbs up with a blank face. He turned to face her, and sent her a thumbs up with an equally blank face.

"... Says you."

"Yeah, says me... the 150 cm half vampire, girly boy who looks like he might as well not have a penis. That should tell you something dangerous if I am saying you look like you crack nuts between your cheeks." Naruto fired back at Yuuto when he tried to make a comeback, and after that he was speechless.

"Now, just a simple test, since this is the advanced class, who can put one leg above their head while still standing?"

-After Yoga-

"... everything hurts." Yuuto hated his clothes and his life at the moment, since he could barely do even a single pose. He looked towards Rias, who did more than he could, but less than Akeno when it came to how flexible she was. He then looked towards Koneko, who never once struggled with even a single pose.

Everyone was sweating, except for Koneko.

'Okay... easy enough, I should be flexible enough to do what I'm thinking.' Naruto thought to himself, having tested his bodies ability to be pushed into awkward positions. "You know, guys like a girl who is flexible... so good on you Rias." Naruto stated to Rias, since she was still more flexible than the average person.

Despite how endowed she was in many aspects, she was much better off than her body type would suggest.

"Oh... thanks... and what technique was this research for?" Rias was panting slightly, having worked up a sweat. She looked on in jealousy as Koneko seemed like she was unbothered by what happened.

"I like a guy who is flexible, so that works even better... gotta say, I was a little turned on when... you were able to do the karnapidasana." Akeno whispered in his ear.

"... You got turned on by the fact I can put my head between my knees."

"Duh... because that means you can wrap your legs around my boobs, while I give your little guy a special treat... and you can give my tight pink some licking."

"Standing 69 with added difficulty... sounds painful and embarassing, no thanks. Anyway, to answer your question Rias. The technique I want to make would rip my body to shreds if I'm not flexible enough... strength enhancing technique that I can only use in this small, girly form." Naruto stated as he looked down at his body.

Vampires were stronger than humans, and his half vampire body was enhanced by the body of a devil, which brought him up to a vampire in physical strength, but at the same time he was lacking when compared to the others in the group who were either full blooded devils like Rias, super enhanced like Koneko and Akeno... well Yuuto was lacking in physical strength when compared to the others as well.

"Oh, do tell. How does it work?" Rias found herself extremely curious.

"Nope."

-Later-

"Take a deep breath..." Naruto allowed a ton of extremely small shadow tentacles to travel up his body and wrap around his flesh tightly enough, while also wrapping around each other. The shadows formed muscle fibers that bound his flesh like bondage, wrapping up his legs before getting to his shorts and going underneath them. His legs were fully covered, with shadow muscle fibers acting like a second skin on top of his skin.

Ero Shadow Bondage

He had been training with controlling shadows, and then he trained to be able to control multiple thin fibers of shadow at the same time. After that, he trained to wrap them around each other while still controlling them, before he worked on being able to wrap them around his own body. Naruto felt the shadows go up his torso, before they got right to his shoulders and down his arms, until they went to the tips of his fingers.

Most of his body was covered in them.

He couldn't move his body at all, the shadows were so dense on his body that it was just physically impossible for him to move. Not his toes, or his fingers. He was unable to move his physical body, not even if he truly wanted to. The shadows were so tight and constricting on him, that the only way for him to not be crushed under their weight would be to have a thin body.

"That is so cool! So... can you move?"

*Crack*

"Yeah, but not with my body. Instead, I move by controlling the shadows, the same way I controlled the bondage in Ero Shadow Bondage." Naruto felt something break in his shoulder when he had his arm move incorrectly. He frowned and hissed in pain, before his shoulder started to heal and he moved around. "Shadow Muscle Mode... S&M Mode." Naruto laughed at his own joke.

He punched a tree and shattered the trunk with the punch, with the recoil from the punch being spread out evenly through his shadows and his body. The half of his shirt belonging to his right side got blasted off by the shock though, showing that the dark shadows covered everything under his shirt. Naruto punched his own fists together, and all of his clothes blasted off of his body, and he looked at his own technique.

"Does that hurt?"

"The shadow bondage is both extremely dense, but also the bondage itself disperses shockwaves pretty well. It enhances by ability to withstand blunt force, but while using this ability, I can't use long range shadows." Naruto stated as he ran across the field at a speed faster than his body was normally capable of running. He jumped and kicked a tree, putting a hole through the truck and landed on the other side.

His leg was bent backwards, before the shadow bondage snapped it back in place so that it could heal.

"That had to hurt." Gasper stated.

"I need to completely relax my body, because if I get tense, then moving the shadows can twist my muscles and break my bones... it does hurt, but I can afford to mess up a little." Naruto lifted up the trunk of the tree, holding the tree above his head, before he threw it. "... this body of mine is small, and not built for building muscle... so if I can't build muscle inside of my body... well I will just wear them like armor instead." Naruto lightly jogged in place.

"This idea came from... bondage?"

"Well yeah, Ero Shadow Bondage is the parent technique to SM Mode... by learning bondage, I became to experiment with wrapping my body up to test my endurance for it. Then, by seeing how flexible I was, I could see if I could stay relaxed here." Naruto started to throw out shadow boxing punches. "... not being capable of moving makes it easier to use the armor like a weapon." Naruto looked down at Gasper.

He showed his arm trying to move inside of the bondage, and then he made the shadows move to actually move his arm.

"How bad does it hurt though?" Gasper was worried for Naruto's pain tolerance.

This couldn't be healthy.

"As long as I can focus all of my concentration on the Ero Shadow Bondage holding the Mode together, then it doesn't have to hurt. This Mode boosts my strength, speed, and durability... but makes it impossible to use magic or long range shadow attacks. If I split my focus, I take damage, since even a single stray throught can cause me to break every bone in our body." Naruto already figured that out before he activated it for the first time. "The boost to hand to hand combat is immense, but every technique has both it's upsides and downsides. The other downside... I can't use it around Akeno." Naruto stated with a frown.

"Why not?"

"Because once I drop SM Mode... well at least I suspect that once I stop using this, the toll it will take will leave me physically drained... barely able to move." Naruto didn't know if it was for sure, but he could feel mental exhaustion already hitting him from the extreme concentration that it was going to take him. "... but..." Naruto stated as he placed his hands together.

More shadows came out from his shadow, and they started to form a second layer of skin tight bondage shadows that covered his body. The shadows were even tighter than before, forming a second layer.

"Are you okay?"

"No... just standing right now is extremely... extremely painful. This is the next stage, SM Mode Version 2... it creates a second layer of SM Mode, and fuses it into the first layer... the increase in ability doesn't add together... it multiplies... but so does the strain." Naruto could hear his bones creaking under the pressure. "... and the restrictions are evn harsher... as it is, this version isn't usable. If I manage to hit somebody, I could knock their head off... but if I miss and lose focus, the entire mode will fade away. Also, there is no downgrade... since Second Layer fuses to the first layer... once I enter the mode, to go down to regular SM Mode, I would need to turn it off."

Naruto showed this by making all of the armor vanish.

Naruto collapsed onto his back.

"Okay, are you okay?"

"My ribs are broken, my arms and legs are broken, and I'm pretty sure I'm paralyzed, but the mental strain is so immense, it becomes impossible to stop it from damaging me... meaning SM Mode V2 has a strict time limit before I lose the ability to fight." Naruto felt his body slowly healing from the immense damage of having nearly all of his bones broken. Shadows came out of his shadow and wrapped around his body super lightly.

Naruto sank into the shadows.

-In Naruto's Room-

Naruto left the shadows with his face, facedown, on his pillow.

"I won't be able to move for a little bit... I call it SM Mode, but honestly... I haven't mastered it yet. I need to improve my mastery over S&M style bondage, and increase my ability to control shadows subconsciously." Naruto had little actual experience with bondage.

Hinata was not a kinky girl... just a very stacked, very horny one. She wasn't that freaky, which was why his experience with bondage was purely from a practical ninja rope standpoint. Naruto felt a blanket get pulled over body, and he saw his shadow (Gasper) was doing it for him.

"It's pretty amazing that you making a perverted technique led to you making this." Gasper praised Naruto.

He laughed.

"When you make a perverted technique, you are being creative... when you are feeling creative, you expand your imagination. Imagination can make you unpredictable... when you explore your creative side, you will create things you could have never imagined." Naruto taught Gasper. "... Gasper... get off our ass." Naruto stated when he felt his shadow sitting on top of his butt.

"But it's super soft and comfy."

"Gasper... fine, but scratch my back for me too. My bones are healed now, but I feel pins and needles across my whole body... it itches... a lot..." Naruto felt a disturbing level of itchiness and unpleasantness from his body.

*Scritch scratch*

"... Oh yeah... that's the spot... lower."

If they didn't share a body and shadow, this moment would be very awkward.

Chapter End!
Pleave Leave Me Lots of Nice Long Reviews, But No Flames Please!