The doctor how you explain draft of some people to proctal or anal sex? What at...

[Uri]

The doctor how you explain draft of some people to proctal or anal sex? What nature of it or this? In fact on idea should involve sexual attributes, sexual differences. And here why so?

[Isaev D.D.]

If to speak about the nature in the evolutionary plan it is known, that to the most attractive (for both floors!) the kind of breeches is!
The pleasure from proctal or anal sex and interest to it or him;them can speak the most different reasons. The vagina and a rectum have the general or common nerves and vessels, are surrounded by a uniform muscle and correct stimulation of a proctal or an anal zone can lead orgasticheskoj to a discharge. Physical sensations during proctal or anal sex have specific character: there is more rasping, "sharp" stimulation (it is pleasant to someone, and someone pushes away). Sometimes affirms, that the pleasure which is received by the woman from proctal or anal love consists not in movement, and in comprehensive feeling of fullness. Unlike vulval or vaginal sex, ocurrence in a fundament gives more dense scope of a penis so, the man receives more intensive stimulation. For many people proctal or anal contacts carry in themselves something forbidden, "dirty" and it also strengthens an emotional strain and potentsiruet exaltation.
For someone proctal or anal contacts relieve the monotony of sex repertoir, recover or resuscitate intimate relations. Many pairs or steams practising proctal or anal contacts, consider or count their more intimal, demanding the maximal trust and liberation from both partners. Sometimes use proctal or anal sex during monthly, some pairs or steams use it or him as a method of prevention of pregnancy. Cases when women insisted on proctal or anal contacts for conservation of virginity are known.