After two previous experiments with less challenging balms, today I've been challenged to rub Finalgon, a much stronger version of Deep Heat, onto my naked pussy. I'm very nervous, remembering how my last experience hurt so much I couldn't even speak. How much worse will it be this time? I open my legs, spread the balm over my pussy and rub it in. Then I wait. Almost immediately, I feel the heat, and the itching sensation. It builds, and builds, until it's almost unbearable. I shift position, struggling to make myself less uncomfortable as the pain increases on a steep trajectory. To try to help myself deal with the pain, I describe a fantasy in which you're punishing me for masturbating without permission. Making my pussy burn like this would certainly be an appropriate punishment! The fantasy helps me cope with the sensation a little. I take out my vibrator, imagining you ordering me to cum while my pussy still burns; until I've orgasmed, you won't let me wash it off. Finally, I do manage to have a long, intense orgasm, but I realise it's made the pain even worse! With my pussy bright red and burning, I rush off to the shower, to try to get rid of the stinging/burning sensation...