Osomatsu-san Oneshots

Lost (Child! Osomatsu x Child! reader)

For Some_Little_Writer

The reader is 10, same with the brothers.

I was walking through the fairgrounds in a panic. I had gone to the festival with my parents and I saw something that I thought was cute so I went to look at it. Next thing I knew my parents were gone and I was lost. So now I was rushing around the festival trying to find my parents. As I was running I accidentally ran into a boy.

Both of us fell down with me falling on them. "Ow." He groans and I got off "I'm sorry I'm sorry. I didn't mean to run into you I" "Hey Hey it's okay. I'm fine." He says and stood up "are you okay?" He asks helping me up and I nod "but you're crying." He says and I wipe my eyes "...I don't know where my parents are." I say and he hums "ohh well come with me. My mom can help."

I look at him and shy away before following him "I'm Osomatsu by the way." He says and I smile softly "I'm y/n." I say and he smiles "That's a pretty name. Nice to meet you y/n." I blush softly and giggle "well your name is pretty cool too." I say and he blushes lightly "I mean it's okay...but thanks." He says and we just continue talking to each other. Until we saw an older woman with 5 boys who were identical to Osomatsu.

"Hey mom!" Osomatsu calls and approaches the woman, pulling me along. "This girl needs help." He says and she hums "oh what happened?" She asks crouching down to my height. "I don't know where my parents are." I say shyly as boys, I assume were his brothers, stare at me. "Oh well let's find them then..Oh Officer!" She calls and the officer walks over.

As the adults were talking Osomatsu's brothers wave at me. "Hello" they all greet and I wave back shyly. "Hi..what are your names?" I ask and they smile before introducing themselves as Karamatsu, Choromatsu, Ichimatsu, Jyushimatsu, and Todomatsu respectively. "She's really cute isn't she?" Jyushimatsu asks and I blush softly "soo you guys are completely identical." I say and they nod.

"But I am the oldest!" Osomatsu says and I smile as the brothers roll their eyes "and he doesn't let us forget it." Choromatsu says and I smile "I bet it's hard to tell you apart." I say to Osomatsu and he chuckles "yeah but it's fun to mess with people." He says with a grin and I giggle. "How old are you guys?" I ask and they all say "10 years old." I smile wide and bounce on my heels.

"Me too." I say and they smile "Y/n!" I turn and see my mom and dad walking over. "Mommy! Daddy!" I shout and run towards them. My mom lifts me up and hugs me close "We were so worried! We didn't know where you went!" She says and kisses all over my face. "Me too but Osomatsu helped me!" I say and point to him. My mom looks and hums "oh wow, identical sextuplets. That's rare."

"Yes. Yes it is." Their mom says with a smile "I'm Matsuyo Matsuno, their mother." She says and my mom sets me down. "Right thank you. I'm m/n and this is my husband d/n." She says and both mothers start a conversation. I walk over to Osomatsu and smile "thanks for helping me...and for keeping me company." I say shyly with a blush and he smiles "it was nothing! I was happy to help!"

I smile and hug him. He stiffens a bit and I hum "thank you so much." I say softly and he hugs me back. "Y-Yeah..no problem." I pull back with a smile and saw a faint blush on his face. "Well we should get going. Say bye to your friends y/n." My dad says and I nod. I pull away and bow to the brothers "bye you guys. I hope we can meet again!" I say and stood up. They nod with smiles and I turn to leave before getting an idea. "Oh wait mom!" She nods and I turn back to Osomatsu.

I step closer with a smile and kiss his cheek. "Thanks again Osomatsu!" I say before heading off with my parents. Leaving behind a stunned, blushing Osomatsu.

-Osomatsu's POV-

I watch y/n leave and reach a hand up to rest on my cheek. She hugged me and kissed my cheek. I have never had another girl my age hug me much less kiss me. I sigh fondly and I could feel my smile become dopey. "ooh Osomatsu has a crush~" Todomatsu teases with a laugh and I turn to him with narrowed eyes. "I do not!" I exclaim and my brothers laugh. "Yes you do!" They say and I cross my arms. "Shut up."

"You are blushing Osomatsu-niisan." Karamatsu says and pokes my face. I groan and turn away. "Okay boys. Leave your brother alone." Mom says and I look up at her. She smiles softly and messes my hair up "luckily I exchanged contacts with y/n's parents." She says and I hum with a smile "really?" I ask and she nods "you'll get to see her again don't worry." She says before crouching to my height. "And it's perfectly normal to have a crush Osomatsu."

I blush but stay silent making her smile "well let's have some fun. The day is still young after all." She says and we enjoyed the rest of the festival. Though I couldn't stop thinking about seeing y/n again. As we were walking home, my mind filled with y/n, I came to a conclusion.

I have a crush on y/n.