What works with one person does not work with another. What is sexually provocative or exciting is in the eye of the beholder. Having said this we should remark that people also have a great deal in common. It would be surprising if it were otherwise: people are, after all, physically and psychologically similar in a number of ways.

This similarity allows us to generalise in particular ways, i.e. in connection with what turns people on. A consensus seems to be emerging that of all sex-play techniques the most sexually stimulating is often oral sex -- in which one partner kisses, licks, or "tongue-teases" the genitals of the other. If they lie head-to-toe -- the celebrated soixante-neuf or 69 position - they can of course do it to each other simultaneously.