And this time his being within her was all soft and iridescent, purely soft and iridescent, such as no consciousness could seize. Her whole self quivered unconscious and alive, like plasm. She could not know what it was. She could not remember what it had been. Only that it had been more lovely than anything ever could be. Only that. And afterwards she was utterly still, utterly unknowing, she was not aware for how long. And he was still with her, in an unfathomable silence along with her. And of this, they would never speak.

DH Lawrence, from 'Lady Chatterley's Lover'