It does more than two thousand years, in India, a called man Nandim wrote aphorisms of the love in 1.000 chapters.
It was summarized, interpreted and been brief by several authors, but the one that has arrived to the present time is of Mallanaga Vatsyayana, author of the Kamasutra that today is known.
Little one knows of Vatsyayana, that it was only born in the Southeast of India around century III of ours was and that, being based mainly on writings of Nandim and their own experiences and reflections, wrote the Kamasutra, a book dedicated to the accommodated citizens of the Hindu society to instruct them in the love arts and that has become a chronicle of the customs of the time.
What less it is possible to be found in the Kamasutra is pornography, because is a seriously written book and rigor almost scientist, since Vatsyayana begins to study the characteristics of men and women to whom it classifies by species, as if a treaty of Biology it was.

Also well-known like small dog, this position is enthusiastic and wild. Both in four legs, concentrate an amount of advantages that few positions have: the comfort of the man to touch clítoris or the anus of its companion, the variety of movements that allows, the possibility that the woman takes with a hand the testicles from the man and the facility to put in anal and vaginal sex.
In addition, the position allows the penis to catch itself between the ass, which usually is very exciting for the man. Briefly, the sexual encounter that includes this position usually is wild and to make rage between its protagonists.
The Kama-Sutra says: In the ardor of the copula, a pair of lovers blinds of passion and continues with great impetuosidad, without paying the smaller attention to the excesses.