Punishment at sunset - submissive #sissy has to watch naked slavegirl getting #whip from #2mistresses

I remember so fondly the summer days at Nica's up north. At sunset, the two of us worked on a horny, naked slave girl. And a poor submissive had to kneel beside her the whole time and couldn't even help the slave girl. What a wimp. And since there were two of us mistresses, one of us could always keep the slave girl's mouth shut when she screamed too loudly. Yes, these balmy summer nights are quite something.