Osomatsu-san x Reader One shots Book 2

A special diet (Ichimatsu x Really happy!Reader)

Requested by BiancaUwU22

It may be not what you expected, but I tried my best. I hope you enjoy it

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After the sextuplets went yesterday to the bathhouse, Ichimatsu feels not very well after Todomatsu told him he gained too much weight. He doesn't really thought about it that much, but after Todomatsu squeezing his belly, Ichimatsu was down after that. Especially after he read in a magazine that girls doesn't like their boyfriend to be too fat.

A reason why you, his girlfriend, didn't saw Ichimatsu for three weeks.

Whenever you wanted to meet him, Ichimatsu had an excuse or wasn't even there. You have the feeling he doesn't want to meet you anymore, but that doesn't stop you until you know the reason. Today, you called Todomatsu to ask him if Ichimatsu is there, but you were confused when he sounded very worried. So being a good and very caring girlfriend, you made your way immediately over to the Matsuno household.

A few knocks on the front door later, Osomatsu opens the door. "Ah, Y/n-chan. Ichimatsu is in the bathroom since one hour and a half." Osomatsu says a little worried. You hum and walk inside, once Osomatsu stepped to the side. Taking off your shoes, you follows Osomatsu and he leaves you alone once you reached the bathroom. You knock softly on the door and ask with a calm voice: "Ichimatsu? Are you okay?"

Ichimatsu flinch and quickly flush everything down, washing his hands and mouth before opening a window and unlocking the bathroom door. He makes a quick step outside and shut the door immediately, standing now right in front of you and very near. "H-Hey, Y/n-chan." Ichimatsu says with a light weak voice. You look up and down Ichimatsu, noticing something right away. "Ichimatsu, did you lose weight?"

Ichimatsu blush a little and nod his head with a hum. You look a little concern at him and just lift up his hoodie. Ichimatsu flinch and tense a bit up, wanting to know deep inside what you think now. In Ichimatsu's eyes, he doesn't really think he lost enough weight yet, but you can see already his rips.

" ... Ichimatsu! Let's start to work out together, okay?" You ask with an happy smile, taking his hands. Ichimatsu hums confused with an quirked brow. You interlock your fingers with his, keep smiling at him with your eyes shut. "I notice that I breathe faster just from walking up ten stairs, so I think a bit jogging might be good. How about we two go running every day, Ichimatsu? You and me making a diet together and everything. So? Wanna do it?"

Ichimatsu blush softly from how cute you look right now, so he can't really say no to you. " ... Guess I need to say yes if you wanna do this so badly with me." He sighs bored, even if he wanna tell you that you don't need to make a diet. In Ichimatsu's eyes, you are perfect the way you are. No matter how you look like.

~Two weeks later~
The brothers from Ichimatsu are very relieved he has you. They were really worried when Ichimatsu suddenly stopped to eat and even when he did, he throw it up immediately in the bathroom. But after you started to make a diet with Ichimatsu together, you made sure he eats enough to gain more weight again to a point where he is healthy again. Surprisingly, Ichimatsu even get a two-pack, but the brothers don't really know how he did this. And whenever Ichimatsu is near to meet up with you, they notice that he seems even more happier than before. Osomatsu was suggesting sex, but even with sex Ichimatsu wouldn't be able to get a two-pack.

Since Ichimatsu isn't telling his brothers a single word, they tried to spy on you two. But after you two were running already 5 kilometer, they gave up pretty exhausted. That Ichimatsu and you even talked while running was too much for them.

His brothers will never find out about it.

After taking a shower, Ichimatsu comes out of the bathroom and smiles softly when he sees you playing with your cat. You already took a shower, since Ichimatsu wanted this. You hum and look to the side, smiling when you see your boyfriend. "Ichimatsu~! Are you ready for your daily workout~?" You ask with an happy, slight excited smile. Ichimatsu chuckles and ruffles his hair dry, before putting on a simple t-shirt. "You always are the one who looks more happy than me." "Because it's a special workout~!"

Ichimatsu makes sure he sits down next to your cat and in front of you. He put his hands behind his head, pulls his legs up and lays back. You put your hands down onto his feet, trying to hold them in place with all the strength you have. Sure, what Ichimatsu will do are just simple forward bend, but for you two it's a bit more difficult.

Ichimatsu gets up and once he sits, you kiss him softly on the lips. He gets back and you say with an happy smile: "One~!" Ichimatsu lays down onto his back again, but chuckles softly when your cat paws his cheek softly. For Ichimatsu is this heaven. Getting always a kiss from you once he gets up and when he lays down again he gets a soft paw from a cat into his face.

A reason why you need to stop him once you reach the number 50, because Ichimatsu wouldn't stop until he pass out or his body gives up. At first, Ichimastu was very flustered when you told him what to do and you suddenly kissed him. But right after he laid down, he got quickly up again and you kissed him again. Your cat joined one day this fun and now, it's the most favorite thing in Ichimatsu's daily life.

If you two keep doing this, Ichimastu will have a six-pack in no time.