A story about a young and devious lesbian mistress and her older slaves

Girls nowadays have no respect anymore for authority. Like, take those two in the back row, for instance, blatantly playing with one another during my class! Yeah, don't think I don't notice these things, I do; oh yes, I do. And if it were up to me, I'd have them both stay after class to make up for lost time, but... that younger one, with the black hair and pale skin... there's something about her that makes me hot and cold at the same time. Still... that's no excuse for that kind of conduct, and so I'll definitely make them explain the moans, the squirms, the wet, sticky fingers, the... mmmmhh.