Female chimps tend to keep quiet during sex so their female rivals don't find out what they've been up to.
119175
Female chimps keep quiet about sex
34422
Rules would restrict medical research on chimpanzees
64402
Viagra helps some women
37052
Drug helps monkeys slim down
49060
Monkeys, humans recognise faces the same way
60170
Women have same effect as Viagra
121023
Women urged to openly discuss HIV & Aids issues
70800
Couples have a Secret - a Victoria's Secret
155728
The things they thought and did not say
12842
Men who earn less than female partner more likely to cheat
149237
Men and women's views of what is dishonest vary greatly
175124
Women are the 'secret weapon'
131525
Fewer women are saying 'I do'
75514
U tube girls geting screwed by dog
78399
Younger men threatened by experienced women
132424
Restless legs could trigger imminent orgasms in women
157290
Woman suffers sex attack