This amazing contortion story I've recently found on Pixiv follows Miki on her rediscovery of her extremely and nearly unreal flexible body. She had known from childhood that she was far more flexible than others, but with some recent experiments, she discovered just how much of a difference there is. Pushing herself further and further, Miki soon finds herself in positions others would consider completely impossible. And the stimulation and pleasure she feels pushing herself only helps her to go further…

There isn't really much fetish stuff in this story, but the many scenes of Miki's extreme contortion were awesome.