Saturday #afterdark - Katana

It's another Saturday AfterDark. Be sure to read all the other great stories.

She waited, hands behind her back, eyes down. Demure, she didn't meet his gaze, didn't shame him. Even downcast, she could see how he looked at her, at the black satin that covered her skin. It fit her finely and showed both curve of breast and hip. Her long dark hair hung straight, falling around her like another sheet of glistening fabric.
He didn't approach, but she felt him nearer, as though his mere intention were a presence in itself. He undressed her with those eyes, and then he undressed himself. Her eyes dropped lower, unable to stand the shine of light on his broad, hairless chest, the dark hair framing...
She stared at his feet, still in his geta, though he stepped out of them. He hadn't said a word. She was his by contract, by deed. He could do as he wished with her and his plan seemed obvious.
What he didn't know, couldn't know, was she had an older, stronger contract. Behind her back, she turned the katana, making sure the bright steel was still hidden behind her legs. It was only a matter of time.
Still silent, he gripped her hair in one hand, forcing her to look up at him.
"Tanaka-san?" she shouted in surprise, her fingers loosening on the katana hilt.
"Yuki-chan," he said, pressing his lips to hers.
Japanese steel clattered on the floor.