While other mistresses love to pee on slaves, mistress Rosella loves to enjoy her slave's pee. She took her slave outdoors and she enjoyed tasting his pee. She even gave him as she wanted the pee in her mouth and for not even a drop of it to go to waste. She tried to guess what he might have drank to make him have that pee. That is why her pee fetish is different from other mistress'.
This mistress is a sadist. She likes it when others are humiliated and degraded and she enjoys it even more when she is the one to do it. Today she wanted to humiliate two losers instead of one like she is used to. She cruelly pissed into their mouths and she forced them to drink it. The losers were afraid of her and they did what she said to avoid further punishment.