I love to tease and deny my phone sex callers!
As a Cocktease Mistress, it’s what I do best :=)
One such caller, I keep in chastity all the time, except for the once-a-month prostate milking I allow him.
He is expected to call me at least once a week. I have him take Viagra about an hour beforehand so he is very very horny, but the chastity device does NOT come off.
Then I have him call me on Niteflirt and while he is talking to me I have him buy and look at one of my naughty fetish picture packs.

Lady Sascha, a Fetish Cocktease

I whisper all the naughty things I would do to him if I were there…. I would tease him, and sissify him, and force him to suck big black cock in front of all my Mistress friends.
There’s a LOT of whimpering and groaning on the other side.. I laugh so hard at him, which he finds very erotic as well.
I am very good at cock control, and not only that, it’s so much fun!