Mulatto lesbian and blonde have sex on a big bed

Renting out rooms in the house and setting your own rules is a good idea, but very little works. When the couple, instead of watching TV, begins to be naughty, the black mistress takes the girl into the bedroom to remind the rules and punish them with lesbian sex. Strange rules, strange punishments and no less insidious plan to record all this on video and then blackmail the hostess.