Lady Scarlet felt that her pee was a reward to this slave because she let him lick, touch and smell her pussy. The mistress also rubbed her tits on his body before she had him lick and smell her clit. The mistress felt that she was doing him a favor and so she viewed it as a reward to him. But according to the slave, it was not that much of a reward. It would have been if there would not have been pee and spit.