Osomatsu-San x Reader ONE SHOTS

Broken Trust (Osomatsu x Cheating! Reader)

Thanks to @CiVo_4_7 for requesting! Hope this was alright! I couldn't really come up with a good plot....
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It was literally another day with you hanging out at the Matsuno's house. Except today, your boyfriend, Osomatsu was out playing pachinko instead of chilling with you. You were used to it though; he did this all the time. You decided to get payback on him. If he loved money more than you, so be it.

"Hey Kara~!" You cooed seductively as you placed a hand on the boy's shoulder. The two of you were watching TV on the couch while the others were upstairs, playing cards.

"Y-yes, (y/n)?" He replied nervously, wriggling out of your touch.

You smirked and leaned forward, placing a tender kiss on his neck. His breath hitched, making you chuckle lowly.

"T-this isn't right! You are with Osomatsu! You shouldn't do this! He loves you!" He said, trying not to get into what you were doing.

"He loved money. Not me. Besides, I want you....." Your breath hit his neck and he sighed lightly at the feeling.

"You can stop that now-"

You silenced him with a kiss and smiled slightly. He kissed back but pulled away once he realized what he was doing.

"(Y/n)...." He choked out, his face ablaze.

You took in his features: blue contacts, slightly ruffled hair, and sweat dripping down on either side of his face. He was panting slightly, not knowing what to do or how to react. In the heat of the moment, he cupped your cheeks and kissed you deeply.

He knew it was wrong and he felt bad, but he was scared of making you upset.

"Look, (y/n)-chan. I like you a lot. You know that because I have tried to ask you out so many times. But-"

"Well if you like me and I like you, then we should be together, right?"

He sighed and looked down.

"You don't get it. You are with my brother. We can't do this to him. He would hate us."

"But I need you...." You groaned, placing a hand on his neck. He flinched.

"St-stop it...."

"Kara.... Please...?"

"N-no! I couldn't possibly do that to my brother! Don't you love him?"

"He doesn't love me. He chooses money......" You played with his hands.

"But-"

"Don't you want me to be happy?"

A look of guilt spread across his face. You were breaking him.

"I-I do!"

"Then be my boyfriend!"

"But you already have one!"

"I broke up with him this morning, Kara. I left him because I wanted you...." You lied. Go (y/n). Manipulate him.

"You did?" He asked. Ah he was falling for it.

"Yes! Of course!"

"I mean if you guys aren't together anymore, I guess I could consider. I just need to think about this...."

"Take all the time you need, baby~"

You kissed his neck again.

"A-ah...." He groaned.

Standing up from the couch, you chuckled. "Bye bye, Karamatsu!" You waved as you put on your shoes and left.

He sat on the couch, shocked.