Men rarely face unwanted physical contact, thus they rarely associate it to danger or unpleasurable experience. And usually, they have too few physical contacts on a daily basis, except when they have kids or wife or live with close friends or relatives. Most men are deprived of such regular contact and are used to it. Even when younger, becoming a teenager, they are deprived from such contact from siblings, to encourage their autonomy as men, as if tenderness was to be excluded from men's lives. Thus, they tend to associate physical contact with intimacy and intimate relationships with sex as a unique way to connect closely to someone. Scarcity of intimacy due to living in a world of untrustworthy and competitive takes makes them crave for physical contact.
Men have a sex drive (of varying intensities according to the individual) to obtain intercourse due to their regular arousal. Women do not have a sex drive. It makes no sense to say that a person has a drive to be penetrated by a penis or any other object. Most women need to feel an emotional connection before sexual contact is welcomed or even acceptable. Many men are happy to have sex with a complete stranger who is attractive to them as evidenced by prostitution that caters to men's sexual needs. Women don't have sexual needs but they do have emotional needs that men rarely understand or accept. They don't understand that when the affection dies, sex dies because a woman is no longer motivated to please a man.