Married men and women report they were equally likely to be the first one to fall asleep after having sex. Find out why to help create more couple intimacy, many are choosing to sleep in separate bedrooms.

Does having sex relieve stress for couples? Yes and no. Find out three ways a couple can reduce their stress so they feel more like having sex.

Some within the sexual health community have argued that the best way to resolve a sexual difficulty is to 'practice' with a substitute partner. If sex surrogacy isn't prostitution, then how do we define the exchange of sex for money?

Although displaying your genitals in public is illegal in many parts of the world, countless men and women have flashed each other at Mardi Gras celebrations. Psychologists reserve the term 'exhibitionist' for persons who engage in socially inappropriate nudity for the sole purpose of sexual arousal.

Can playing hard to get really help you score a date? According to a studies published in the European Journal of Personality, the results suggest that if you're looking for casual sex being more available will make you more successful; but if you're looking for love, playing hard to get is the better strategy.

Do women have an easier time reaching orgasm if their partner has a larger than average penis? For several decades, the answer reported in most sexuality textbooks has been an emphatic no. But what do women really think?

How common is it for bisexuals to be equally attracted to both sexes? I have spoken to a few other bisexuals I know who claim that I am not alone--that they too have a slight (or major) preference for men or women, and that in fact this seems to be the case for most individuals who identify as bisexual.

To date, most research on prostitution has focused on describing and understanding those who are selling sex. But what do we know about the buyers? These infographic the reasons men bought sex.

Are there any secrets to a successful friends with benefits arrangement? It seems like they’re usually great in the beginning, but then one person develops feelings and things just get messy. Is there any way to keep things from getting so complicated?

Researchers found human beings are capable of becoming sexually aroused by virtually anything. Find out the most common fetishes, plus why some people have sexual fetishes.

This fascinating video shows the science behind dancing and how it has evolved to demonstrate to potential mates your genetic fitness. The key? To engage and embrace your animal instincts.