Since you like pain and want to workout... I have some ideas
I'm in a similar thread (check my signature, here to be exact:
https://www.getdare.com/bbs/showthread.php?t=429777) with Cine, and she's nowhere to be seen (did do it for a long time, but has been off GD for a month or so. You might take over her workouts
But, in case you don't want to... I have a couple more ideas for you:
Jumping jacks in a hanging wedgie (make sure when you are standing you can barely touch the ground on tiptoes). This way every jump will make the wedgie go deeper and deeper. 3 series of 40 should be enough.
Squats on dildo, with clothespins to keep your pussy wide open and on your nipples (and one on your tongue). Every time you fail a squat (don't go deep enough to get the dildo all in), add a clothespin and start again. 3 series of 30. If you want to add intensity, before starting, add ABUNDANT toothpaste on your clit. No touching it until you've complete all the workouts AND the sensations has gone.
(Let me know if you want to join me in Cine and my thread, too)