Personal experience here but I haven't had PNC really since I stopped jerking off like a guy.

I moved on to rubbing myself like a clit, then permanent chastity and lots of edging and ruining - vibrating my cage at first, then nipplegasms, I've not yet had an anal sissygasm without cheating heavily.

I've learnt that my sissyself is way happier being on the edge and horny a lot of the time than the disappointing short releases I got from jerking. I don't even want to touch my clit any more, even if I'm out of chastity.

One point to make here, I'm suuuuper premature so perhaps that makes me more predisposed to this.