(Mistress Stella seems not very impressed by your effort and looks out through the window)
"Stroke stroke stroke. A bit faster again, medium pace now
(You do as she says)
"You know, I think you're looking at this whole chastity thing the wrong way slave. If you were my slave, i'd lock you up permanently. Not as a punishment, no. More as an opportunity for you slave. An opportunity to not letting yourself getting distractet anymore."
"P..p..please mistress"
"No more unnecessary distractions from that drippy little thing between your legs. No keys, no freedom. Just a lifetime of servitude. The only thing that would matter would be pleasing me slave. I have a feeling you'd make for an excellent service slave. Yeah, and the only words that would ever be allowed to escape from your lips are "Yes, Mistress.."
"P..p..please mistress"
"Anyhow, so how is it going over there?. I hope you don't mind some relaxed stamina stroking?. This is just a very quick warm up.."
"Thank you for letting me stroke so much mistress"