Three Unerotic Tales
Here's an excerpt from "Too Scientific":
...His penis slid into her vagina and she secreted more vagnial discharge. Luckily the discharge was not irritating or blood-stained, nor did it have an unpleasant odour, the cause of which is usually foreign bodies, cervical erosion or cervical polyp.
Luckily, too, she was on the pill, a type which built a wall between the cervix and fallopian tube that prevented sperm from entering her uterus and impregnating her ovum upon ejaculation.
She was simply having sex with him for the pleasure of it, having successfully passed through her oral and anal phase of psychosexual development to fully centre upon exploration of her genetalia....