We can't explain all male behaviour, but here are five sex secrets that may help you understand your man even better

Men can be tricky beasts to understand. To help you navigate your romantic relationships, pyschologist George Weinberg, author of Why Men Won't Commit: Getting What You Both Want Without Playing Games offers fascinating insight into male behaviour.

1. He's afraid he'll let you down
Men feel tremendous pressure to perform sexually. "In the past, men weren't evaluating their sexual performance because women weren't supposed to judge them," says Weinberg. But times have changed. Sexually satisfied role models, such as Madonna and the Sex and the City girls exude sexual confidence and encourage women to be open about their sexual desires and complaints. Women have more experience in the bedroom than ever before. The pressure for men to perform has increased and he can't help feeling that he has to please you. Even though you might forgive him for a few poor performances, he finds it difficult to forgive himself.

Warning: If your man frequently has problems with getting aroused or maintaining his erection, he may protect his ego by blaming you.

What you can do: Relax and try to enjoy sex. This will help to alleviate some of the pressure. In other words, don't take it personally and don't tease or insult him. And never point and laugh.

2. He needs to know he's doing it right
Sex is a source of power and is proof of a man's masculinity. "To a man, having sex means that he can move a woman, that he's an athlete, a provider and a lover," says Weinberg. Basically, your guy wants to be a superhero and he certainly wants you to see him in that light. When he satisfies you sexually, he feels like Superman. If you are enjoying yourself, let him know you're happy.

Warning: No encouragement means no joy.

What you can do: It's simple. Let him know what feels good or let out a moan or heavy breath when you feel like it. A good rule of thumb: don't fake it, but don't fight it.

3. He doesn't like waiting too long to have sex with a new partner
Unlike some dating experts, Weinberg believes that women should never hold back from having sex simply because of the so-called 'rules of dating'. He is more likely to commit if the relationship is sexual, and it is important for him to know that you find him attractive and sexy. "A man goes through a lifetime hoping to find a woman who can't keep her hands off him," says Weinberg.

Warning: "Frankly, if your guy is offended when you initiate sex, get rid of him."

What you can do: We're all sensual beings; we might as well be who we are. When you're in the mood, don't be afraid to make a move.

4. Men wish they had better bodies, too
Men might not worry about weight nearly as much as women do, but they do have their own body image concerns.

Warning: Most men are quite worried about their penis size, general shape, height and baldness, says Weinberg.

What you can do: Help your man by telling him that you find him attractive and showing him affection.

5. He will not forgive a cheating girlfriend
Men who have been betrayed, especially in the bedroom, are far less likely to forgive their partners than women would be in the same situation, says Weinberg.

Warning: Men look for loyalty in a woman.

What you can do: Show your loyalty by supporting your man in front of colleagues and friends and defending him when necessary, says Weinberg. This support will help him to feel more secure and will even motivate him to let loose and be more adventurous in the bedroom with you. Men need commitment just as much as women do; they just want it packaged slightly differently.

Do you agree with Weinberg? Talk about men, sex, relationships and more on Confession Corner. Join in the live discussions