The information he compiled consisted of their practices in warfare, religion, curing and even sexual customs.

And it could not be otherwise; what is decisive here are the general sexual customs of class, nation, and time.

Cendri had become accustomed to extreme differences of sexual customs from world to world.

"Your sexual customs are fascinating," he said, as we drove away.

Sometimes he thought he'd never figure out the sexual customs of Homo sapiens.

The gender power difference in a society was seen as the most powerful influence on sexual customs since it influences the other two linkages.

Changes in sexual customs in the Western World generally supports this theory.

Laure recollected that, throughout the human species, sexual customs are among the most variable.

By now Blade understood enough about Kaldak to understand the sexual customs here.

'You aren't putting out anything about our sexual customs, family life, and so on.'