Cute and skinny ebony slave needs to learn orgasms control from tough master

The training for today is orgasms control as sweet ebony has not master it very well. Since she is not a serious slave, master will make sure that she receives an unforgettable lesson today. Skinny dark beauty is asked to ride on a trainer's cock non-stop until she could no longer hold in her orgasms. Yet, master will not let her cum so easily as she needs to earn it.