It shows that she is a female because there are no hanging balls. It looks good when coupled with another one of her feminine features; her hips. In other words, when the man is about to have sex with her , or he is having sex with her. Some tribal women may have their breasts on display, but they usually make sure not to show their thigh gap because showing that part of themselves, showing the vagina area gets the attention of men and makes them want to have sex. The male and female body is actually very similar apart from obvious feminine features from the woman and obvious masculine features from a man. For a woman, some obvious feminine features are her hips, her breasts and if she has a thigh gap, her thigh gap.