Haikyuu Single Dad AU!

Terushima • like father like son

A/N: I am basing this story on Yuji's personality haha.

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You and Terushima had been friends for awhile but you didn't know that he already has a kid from someone he had a one night stand with. One day, Yuji told you about his son and that's how you ended up baby sitting two Yuji Terushima.

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"WHAT?!" you screamed while looking at Terushima and his mini-me.

"Geez sister, calm down." Terushima said while picking up his 3 year old son.

"So Y/N this is Yuuji." He said.

You shook your head while doing face palm. You knew better that Terushima named the child.

"You named your son the same name as you..?" It was a dumb question to ask given that Terushima already introduced his baby.

"Yes! But the difference is! He got double U in his name. Yuji and Yuuji" He replied, looking proud as ever.

"I cannot believe you, why didn't you tell me about this!?" You asked him.

It was during his junior year in college that he accidentally popped his soldiers on to someone he had a one night stand with.

"Sweetie-- first of all, you were too busy with studies." He starts off "also, I was gonna tell you but then I realized 'why not surprise them?!' And tadaah! You were surprised." He added.

You could only roll your eyes on him. You knew that he was crazy after all.

The three of you ended up going to an indoor play area at the mall.

"Whooah!" You heard both of them said in unison.

"Yuuji." You called and both of them turns to your direction. Their eyes were full of excitement after seeing the ball pit and the super slide. and you couldn't help but to chuckle.

"The smaller Yuuji, I need to put a socks on him." You said while nearing towards the little Yuuji. You gently lift his leg up to put the socks on both of his feet. Once it was done you gave the 'Go' signal to the older Yuji.

Then just like that, Terushima picked up his kid and went inside the ball pit.
You watch as Terushima plays with his son making Yuuji catch the ball.

The view was too much for you to take. It was making your heart soft. You've never seen Terushima so excited and happy.. well except for that one volleyball game he had during highschool.

Terushima and Yuuji went up to the super slide. Terushima placed his son in front of him and holds his waist gently "okay, you're gonna slide with daddy okay?" Terushima kissed the cheek of his som before sliding down.

"cheeeeHooooo!"

You heard the screams of Terushima and the toddler giggling too loud. You couldn't help but to feel embarrassed for them but you find it adorable at the same time.

The father and son landed on the ball pit while they were giggling at each other.

soon you found the two boys playing in the trampulin. Yuuji was just sitting there-- giggling while his daddy was jumping gently to make Yuuji somehow bounce as well.

After some time of playing the two of them went back to you. All sweaty and tired (?).

"Looks like you enjoyed too much." You chuckle while wiping the back of Yuuji's. You changed  the cloth of the toddler and applied some powder so he can feel fresh and clean. You also didn't forget to put a towel on the back of the toddler just in case he continues to sweat.

Then you turn your attention to Terushima whose still sweaty as hell.

"What are you waiting for?!" You asked him. "You." He answered.

"Me?! Why?" You asked him while giving a bottle of water to the smaller Yuji. "Well- baby Yuuji received proper care, daddy wants it too." He grins at you while moving his brows up and down.

"Iw the fart are you saying!" You throw the clean towel to him. "Take care of yourself!" You say.

Terushima laughs while wipping his sweats away. You hand him his extra shirt so he too can change as well. After changing you let them watch the others play while you fix their things.

Suddenly a pair of small arms were wrapped around your neck and a pair of two large arms wrapped around your waist.

"What are you doing?" You asked them while giggling.

"Thank you for taking care of us for today." Terushima said.

"Aww.. You guys." You smiled while hugging them back.

"But its no fun when we're the only ones enjoying it!" Terushima suddenly lifts you up in a bridal style.

"Let's go Yuuji. Let's throw them in." Terushima goes back to the play area while Yuuji was trailing behind.

"Stop it Yuji!" You chuckle while smacking his arms. "Put me down."

Terushima doesn't listen to you. He continues to walk towards the ball pit. And when  he finally arrives, he just threw you in.

Then suddenly Terushima and Yuuji started throwing balls at your face while they were laughing.

"What the! That's unfair!" You pick yourself up and throws the ball back at them as well.

The three of you ended up having fun at the ball pit throwing balls at each other.

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A/N: I feel like Terushima would be a cool dad. 🥺