Hedgehog's Dilemma

One Punch Man Fanfiction

Original Character

Onsoku no Sonic X OC

Summary: In a glance, Tsubaki is a beauty in kimono. In actuality, she is a kunoichi, hailing from the same ninja village as Sonic. The two ninjas get along well actually. Despite having feelings for Sonic, Tsubaki is content with their current relationship. But when Saitama enter the picture and the Earth apparently will be in trouble in the next 6 months, what a kunoichi's to do?

Warnings: Incorrect grammar, OOC canon characters, Typos, awful NSFW scenes, Some scenes not suitable for children

Disclaimer: I do not own OPM

Note: Title may change

Chapter 1

Of all things that could show up on her doorstep, Tsubaki never dreamt of finding Speed-o'-Sound Sonic leaning heavily against the entrance, clutching his groin. The normally composed ninja is sweating like crazy. It is apparent from his expression that he is in great amount of pain. And the source of that pain came from his groin. Tsubaki even see his body shaking. Whoever did this to him must be one hell of an opponent. To aim accurately at a fatal spot with an enemy as fast as Sonic... As a ninja, Sonic have high tolerance towards pain. To see him like this... She wonder what kind of person they are. In the mean time though, she have a patient to take care of.

"Sonic," She step aside, allowing him to enter her home, "I'll go get some ice. Go lie down in the living room." The male mutely nodded as he slowly make his way to her living room. He walks funny due to his legs pressed together. Still it didn't dull his instinct to avoid triggering the hidden traps she laid out here and there. Tsubaki locked the door behind her. Using her ninja speed (though not as fast as Sonic), she waste no time to grab a plastic bag. She took out the ice cube trays from the fridge. Two of them. She dump all of the ice cubes into the bag before filling it with water from the sink. She tied the makeshift ice bag with a band of rubber before making her way to the living room.

Sonic is lying down on his side on the tatami. He is still clutching onto his groin. At the sound of her footsteps, he turn his body around, now lying on his back. Wordlessly, Tsubaki crouch down and place the ice bag on his crotch. A look of relief appear instantly on his face. He let out a moan, similar to the sexual pleasure kind. While Sonic relishes the feeling, Tsubaki take out her handkerchief. She dab it on his forehead, wiping his sweat. Tsubaki wonder if the sweat is resulted from battle, the pain, or him rushing here? Probably all three of them at the same time.

"Thanks," Sonic said gruffly. His features are calm. It appears he is turning back to his proud self, now that the pain on his groin is taken care off.

Tsubaki smiles at him, wiping the last of his sweat. "No problem."

They fell to a comfortable silence. Sonic relaxing his muscles while Tsubaki observe him. There are no visible injury on his person, though Tsubaki wonders if his groin is bruised or something. If it was, it's definitely not a pretty sight to behold. Not that Tsubaki ever seen bruised balls before... Sonic closes his eyes, seemingly enjoying the peace. The only sound they can hear at the moments are leaves rustling and the chirping of birds nearby. Life in the forest is a quiet one. Although occasionally wild animals or monsters wondered to her territory... Tsubaki use the chance to study Sonic's face. He's handsome, no doubt about it. His facial features is a bit feminine but she doesn't mind. He looks so calm at the moment, so peaceful. Even so Tsubaki know that he is not sleeping. He's probably sensing her gaze on him. But Sonic is a shameless man. He have no qualms walking around naked or nearly so. He had caught her a few times staring. He wear such tight suit that accentuate that great ass of his. What can she say? She have a great appreciation for handsome men with nice bods. Sonic will tease her every time but Tsubaki is not really bothered. She knew that he sometimes stare at her too.

Putting aside the fact that there's an attractive ninja lying down before her, Tsubaki is secretly pleased that he trusted her enough to do so. A big part of it is due to knowing each other since childhood. Being raised in the same ninja village and all. Tsubaki won't say that they are like best friends, but she can't help but surprised that they can get along like this in adulthood. Sonic like his solitary so they don't meet up much. When they do though, they spend it by catching up with each other or training. Tsubaki knew that she won't be able to match him in terms of physical strength and speed. So she'll content herself with her weapons. In rare occasions, they will encounter each other during a mission. They will pretend to not know each other but so far there are no instances of Sonic being the enemy. Speaking of enemies...

"Are you going to tell me what happened?" Tsubaki inquired finally. She's curious as hell with the circumstances that landed Sonic with a strike on the groin. Sonic open his eyes, now looking annoyed. He glance to the side, probably to gather his thoughts, before gazing back at her.

"I was taking care of the enemies who targeted my current client," He started, "The Paradisers. I'm sure you heard about them from the news. For all the hype with the battle suits, they're useless against my speed. It was an easy piece of work. Cutting off their heads. The leader have more backbone than his underlings, I give him that." Sonic smirked, revealing pearly white teeth. "I'm positive that I hit the back of his skull but somehow he survived that. When I was distracted he slipped away. Naturally I give chase." Tsubaki is intrigued. The boss survived a kunai on the back of his skull? She heard of people lived with a bullet lodged on their skull. This is similar to that. "I was tracking him down when I found him."

The change of tone didn't go unnoticed. Nor the wild look in Sonic's eyes. The same look he got wherever he found an interesting opponent. "He's bald like the Paradisers so I mistook him as one. Very plain looking dude. He denied being a member of the Paradise group. Says that he's a hero as a hobby. I thought it will be easy work." The smirk turn to a frown. The look on his face tells her that he's reminiscing. "That bastard saw my attacks coming. Twice."

The idea of tracking down the leader and check his skull is quickly forgotten. Tsubaki's eyes widened at the new information. Someone saw through Sonic's attacks? Twice? She leaned in in interest, wanting to hear more.

"I jumped around with my full speed, intimidating him. But it didn't work. The bastard. He can perfectly see which direction I'm coming from. Not much reaction our of him. I used the Wind Blade Kick when he..." Sonic grimaces. Tsubaki take it that that was the moment the opponent attacked him on the groin. "I had to retreat," Sonic said with a look of humiliation on his face. "Not before I get his name though. Bastard's name is Saitama." Saitama? It doesn't ring any bells. Maybe he's a newly registered hero. Tsubaki make a note to herself to check on the hero registry later. "I need to get treatment fast. Since you live near F-City, I decided to come here."

"What does Saitama looks like?" She asked him, growing more curious.

"He's bald, for starters. Yellow jumpsuits. Red capes and boots."

Not the flashiest outfit but not the tackiest one at the same time. There are a number of bald heroes so she should look at the costume first. Starting from heroes stationed in F-City.

Tsubaki asked Sonic again. "What kind of attack did he use? Is he a martial artist?" This Saitama is definitely not a ninja. Sonic would tell her that from the very beginning.

Sonic's eyebrows furrowed. "A punch. He said that he held back though. I don't think he's trained in martial arts. His form is too lax." He clenched his fists. "I don't think Saitama ever been serious from the beginning."

Tsubaki touched her lips, thinking. It's plain to see that Sonic will be obsessing over this man called Saitama now. He's obsessed with polishing his skills. Attacking opponents he deemed as strong without any intention of stopping until victory is his. Such drive worthy of admiration. But if Saitama really is as strong as Sonic claimed... Tsubaki can't help but feel intimidated. He beaten Sonic with just one punch. What kind of strength does he have? Can it be measured?

"I'm going to kill him. That Saitama," Sonic solemnly promised. His trademark smile appear on his face. The one he called his bad habit. Others find his 'bad habit' daunting but Tsubaki is used to it. In fact she take a liking for it. No doubt the prospect of fighting Saitama excites him. Sonic is a blood knight. The notion of fighting never fail to draw out that smile of his. Tsubaki smiles at him. She like it best when he's excited. He look so alive, full of childlike enthusiasm. Sonic's thirst of being the strongest never changes. He is the type that will strive to achieve his goals. That confidence, that energy of his, those eyes brimming with excitement, that smile... Especially the smile.

It's what got her to fall for him to be honest.

But her feelings have no relevance whatsoever to this so Tsubaki set it aside. Like she always been since they were young. It will only trouble him if he knew. Tsubaki is content with being at the sidelines. Watching him getting stronger. This time it won't be no different. Sonic will train hard to get stronger, fight this Saitama, kill him and then he will be one step closer to be the strongest. Tsubaki can't wait to see what kind of ninja he will be when he's the strongest. She knows that she won't ever quite reach his level. The possibilities of how far he'll go excites her. But first, Saitama must go down. And before that...

"First thing first, you must make full recovery" Tsubaki said sternly. "Take it easy for the next few days."

Sonic frowned at her. "I must not neglect my training. Not when I have to kill that Saitama. I should start tonight." He move to sit up but Tsubaki beat him to that. She place an index finger on his forehead and push him down.

"Resting is important too, Sonic. I am not an expert but I'm quite sure that you shouldn't overexert yourself when your balls hurting and possibly very blue. You should go see a urologist." Tsubaki said to him softly. She should check the internet for more information. Sonic frowned at her. Pricky man.

In the end, he let out a huff and turn his head away. "Do what you want."

Tsubaki smiled at that. "I'll go make some more ice cubes. And tea for both of us. Or do you want to eat lunch instead?"

"Just tea."

"Tea it is." Tsubaki stand up from her spot. Before leaving the living room, she take a pillow from the shelves. "There you go," She slipped the item underneath Sonic's head. "Take it easy for the rest of today, okay?"

"You're so fussy," Sonic complained but he smiled anyway. Tsubaki let out a small giggle before stepping into the kitchen.

...She wonder if she should thank this Saitama person for the strange but not unpleasant turn of events...

Yes, you read it right. This story is rated M. In fact, this story will be my first lemon story. I still can't believe that I actually have the guts to publish this story.

The pairing in this story is Sonic X OC. If you don't like fanfics with OCs, especially CanonXOC... Please turn away now.

If you don't like lemon at all, turn away now

I'm not sure if there will be yaoi pairings in this fanfic but the main pair here will be hetero.

Before any of you ask, yes, Tsubaki is a kunoichi. Yes, she and Sonic are childhood friends. No, she is not faster than Sonic nor physically as strong as he is. But since she receive the similar training to Sonic, you can expect her to be stronger than normal people. You'll learn more about her in future chapters.

Thank you for reading

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