You and Kei were studying together, since it was very noisy at your house. He'd begrudgingly allowed you into his life, and so he let you come over to study at his place.

You had a habit of laying half across his body as you worked, but because you didn't weigh much.. and maybe because he liked it a little.. Kei didn't mind.

That was until his brother, Akiteru came in and saw it. "Is this your.. lover?"

"No!" Kei hurried got up, disturbing you as he slammed the door. He was mortified.