Spanking. Originally a punishment, but for the trained masochistic women, it might be a reward... On all fours, bound, during sex, in various situations, the spanked buttocks. The harder they are spanked, the redder they become, along with the淫juices overflowing from their pussies. The sounds of women leaking out as their buttocks are spanked, are they the groans of despair, or perhaps the cries of joy... Witness with your own eyes the eight figures drowning in the pleasure of being trained.
