91色情片

Why are men and women different from each other, not only physically, but
in what they want out of a relationship? Why do men go for variety in sex, while
women prefer stability? In Making Sense of Sex: How Genes and Gender Influence
Our Relationships, husband and wife psychologist and psychiatrist David Barash
and Judith Lipton argue for biological reasons for such sexual differences.
Their fascinating, warmly written and often humorous study roundly refutes much
of the 鈥渓earned behaviour鈥� theory. Published by Island Press, $24.95,
ISBN 1559634529.