Mihawk x reader (Red haired Twins)

(Pic not mine)(Credit to artist)
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Mihawk's Pov

As i was about to slice the young pirate someone crossed their sword with mine, although I had put enough power they didn't budge at all.
I looked towards the person and it was a girl wearing a fox mask, with long scarlet hair in a ponytail, she was wielding a long sword that looked like it would snap in two if not wielded correctly.

"Who are you girl"
I asked her as i hid my surprised face

"Hmm~, who am i indeed, although I can't tell you my name yet you can call me (y/n) for now"
As she said that, i got a sense of deja vu, like she was someone who i already new but I couldn't put my finger on it.

As i was trying to connect the dots, she helped straw hat get away although i hated that, i was still kind of curious to see how strong this girl would be compared to me, she looked fragile and weak but the way she blocked my attack showed how strong she really was.

'I am starting to look forward to this fight'
As i started to attack the girl, she said something that almost made me lose my footing

"If i take some boredom away, will you go on a date with me hawkeye~? Hahaha"
She asked me while she blocked my attack, i looked at her confused but as she said that the deja vu hit me once again, and the person that came to my mind was red hair.
I inspected her again before attacking her, as she blocked and striked me i finally connected the dots. This girl is related to red hair, their movements are somewhat the same, and that hair is the same as his hair color.

'She is either siblings with that red hair, or he had a daughter, although he would of mentioned something to me by now since he likes to show of everything and everyone that is related to him.'

Mihawk continued to fight the girl for what felt to him like a minute although it had been more than that, the girl looked towards the direction of straw hat boy before falling back and sheathing her sword, Mihawk stood there confused.

The girl turned to look at him
"I guess this is where we part ways hawk-eye, then please give me an answer later" the girl chuckled as she ran away and disappeared in a crowed of pirates heading towards the opposite direction.

I sighed and sheathed my sword, 'i don't like ending a battle quickly especially if my opponents are on my level, although I also kind of feel bothered that she left, and that question is bothering me somewhat.'

Time skip;

Sengoku revealed the girls name and background, although i was kind of expecting her to be related to shanks somewhat I didnt expect them to be twins, i looked for her once again and as i spotted her i started walking towards her
'Then i guess fighting her would be the same as fighting that red haired'

As i got closer i noticed that she was close to whitebeard and she was protecting him,
'She should be protecting herself instead of that old man, wait what am i thinking? And why am i feeling annoyed just by watching her protect someone else'
I shook my thoughts and took out my sword, i gripped it and threw a slash with some of my haki, she clearly felt it as she dodged it and that was my chance to spar with her again as she gripped her sword once more.

As i looked at her she had a sly smile on her face as she asked me a question before shifting her whole body to look at me,
"Hmm~ do you already have an answer to my question"
She said as she looked at me with curiosity and a smile on her face, for a moment I thought she looked cute but i shook those thoughts away once more

"Know i know why you reminded me of red hair so much"
I told her as i got closer to her, as to close the gap between us.

"Well then, are you interested in that date now~"
She asked me as she gave me that sly and cute smile once more, before I could think of what to tell her the opposite of what i thought escaped my mouth

"I dont date, although you seem like a worthy opponent so ill spar with you a bit more"
As those words left my mouth i felt bad, i looked at the girl once more and she still had her smile as if she didn't hear what i had just said. As i got ready to strike her once more she said something else that bothered me.

"I guess i dont have a choice then, although that makes me kind of sad"
I got distracted by her answer and unintentionally aimed at her neck when i striked her, 'shit' i looked at her before striking again, she just blocked my attack and stepped back a bit.

'Why does she not attack me? why is she just blocking? Why is it bothering me when i attack her?'
As we were sparring for a bit i noticed that she was trying to shake me off once more to go with whitebeard, but why did it bother me when she was beside another man? She is someone i just met so why is everything that she does make me feel weird.
We continued to fight for a little while longer, we bumped into some pirates and she was able to shake me off for a bit. As i got rid of the pirates i saw her looking at blackbeard and the corpse of whitebeard, i blocked her path once more before she could move towards them.

"For someone who doesn't want to go out with me, you sure are persistent"
She said looking kind of tired and less excited as when we first started.

'Was i persistent for wanting to spar with someone who is finally on the same level as me?'
I ignored my thoughts and went to strike her once more, before i noticed, my sword crossed with another sword. There was a person towering behind the girl. As i looked up irritated to see who would dare to stop my fight, i saw red hair he looked at his sister and smiled a smile I didn't want her to see for some reason.

"Long time no see, shin"
Red hair told the girl

"SHaNks?!"
She shouted his name before putting her weapon down and hugging him, as i saw that i felt a sharp pain in my heart, why?
They were just siblings so why was it bothering me that she gave affection to shanks.

"Sorry to have stopped your fight hawky but it seemed like my little sister needed some help" as he said that i ignored the rest and turned to look at the girl that was still holding on to shanks

'Was she really tired? She didn't look tired to me, and we weren't even fighting for that long'
Shanks left and as he did the girl grabbed her sword and sheathed it, then she looked up at me

"I guess our fight will be postponed once again Hawkeye, then see ya later~"
As she said that she winked at me, giving me goosebumps down my spine, she then turned around and went on her way toward the crew of whitebeard. *sigh* i sheathed my sword and started walking back towards the port where they held my ship, i stopped for a moment and glanced at the girl one more time.

"Until next time, shin"
I murmured the words underneath my breath before I continued to walk once more. Before I reached the building of the marines red hair stopped me,

"Yo, hawky, it has been a long time, and I wasn't expecting to see you fighting my sister, so what did you think? Is she just as good as me? I bet she is, although I haven't seen her in years but even if she is on the same lvl as me promise ill always be your rival."
He told me with a big smile on his face, like usual, before i could answer his questions he came closer and whispered something.

"By the way, my sister isn't taken yet so if you want her I wouldn't mind you being my brother-in-law"
He said as he started to smile and look at me with an annoying look

"I'm not interested in being your brother-in-law, red hair"
I said as I continued to walk towards my destination

"Oooohhhh, so YoU ARE interested in my sister"
As he said that i almost tripled with my own foot, i ignored him and continued towards the base

"Then ill see you later hawky, she's gonna be their by the way"
He shouted before laughing and walking away

'Am i interested in red hairs twin?'