Some of the general reasons why women models posing in water look attractive to men are: Since human beings share a common ancestry with life forms that originated in water, the presence of water still arouses desires leading to reproduction. It is easier for the mind to get a more detail visual description of a body when our eyes follow the water running off a body. This leads to a greater appreciation of the body you are looking at. Since it is more natural for a man to be attracted to a woman, the more he can look at the female body assets the more he gets attracted to her. Semi nude is erotic; naked is vulgar. Modeling in water is erotic and thus artistic. Eroticism is art because like most works of art it gives a feeling of mystery. Humans are often attracted to mystery. Think about how you felt when you played hide and seek while you were a child. It is the tinge of risk somewhere hidden there that excites you and makes you crave for more.