Spanking. Originally, it was a punishment, but it may be a reward for trained masochist women. - Buttocks that are slapped on all fours, bondage, SEX, and various situations. The more you hit it, the more you hit it, the more it overflows from the with the ass that turns red. - Is the voice of the women who leak out after being slapped on the buttocks a groan of despair or a cry of joy? - Please see with your own eyes the appearance of 8 people drowning in the pleasure of being trained.