(This is a work of fiction with a 42 y/o disabled male and 50-year-old female devotee of disabled guys. All actions are consensual.)
My disabled body was precisely what Haley desired. A devotee of disabled guys, we had met at an online forum specializing in matching those with disabilities and those who lusted for them, and lust, she did. After a lovely seafood dinner, I took her back to my place where she'd spend the weekend, and now, I was shackled and spread-eagled on my own bed, brought right to the edge of orgasm only for Haley to tease it away.
Born with a condition called spina bifida, I walked with a limp, wore plastic-molded leg braces to stabilize my skinny, atrophied shins and calves, had deformed toes, and most embarrassing for me, I had to wear diapers due to full incontinence. Haley showed me the attributes I thought were detractors about me were things that made her pussy tingle and drip with excitement.
She had her own condition; vaginismus, and had a very tight, small opening for her vagina. Her ex-husband was just a bit too big for her and it was one of the reasons they split up. The other was, as a devotee, it wouldn't matter what sized penis he rocked; she desired someone with a perfectly imperfect body. I lucked out twice in those terms, because not only was my disability one she lusted for, but being not so well-endowed as most, my small, four-inch cock was just right for her, but she would get to that in a bit.
"Now, I'm not a blindness devotee," Haley began, and she dug into her suitcase full of toys, "but I do appreciate how useful a good blindfold can be when training a subby like you. Do you object to me putting this on you, Luke?" I slowly shook my head. "Good, because I do want to incorporate it into your...punishment."
"What are you going to do to me, Mistress?" I asked nervously as she placed the soft, silky black blindfold over my eyes and tied it around the back of my head.
"Hmm, if I told you everything, that would ruin some of the fun. Tell you what, when we discussed hard limits, you said heat was the only thing you shied away from, right?" I nodded again and she continued. "Good, well, I can promise you I won't use candle wax, fire, or anything else hot. I've done my research and I'm well-aware that those with spina bifida can have a sensitivity to heat. So, I promise I won't use anything hotter than my tongue and pussy on you. You gave me a lot of leeway, though. Is there anything else you wouldn't want me to do?"
"I...I don't like the idea of scat play," I said.
"Good, I won't shit all over you then," she giggled.
"I suppose, if something is bothering me, I'll just let you know," I replied.
"Good boy. You remember our traffic light system, right? Green: go, yellow: slow, red: hell-no."
"Yes ma'am," I replied.
"Good boy," she cooed saucily. "Now, the first round of punishment...is more of an experiment than a punishment. An indulgence on my part, if you will. I have something in my hands. A Wartenberg pinwheel. It's like a tiny little pizza cutter, but instead of a smooth disc to cut pizzas, there are little pointy spikes like a cowboy's spur. Don't worry, I'll be gentle on you. Doctors use it to test sensations, and that's precisely what I want to do with you. I want you to tell me when you can feel it on your skin, maybe give me an indication, like hot for full sensitivity, warm for a fair amount, cool for barely feeling it and cold if you lose the sensation. Deal?"
"Yes, Mistress," I replied dutifully. My small cock was still throbbing and hard, a detail I'm certain she didn't miss.
"I know that the way spina bifida works is, above the area where your spine was affected is usually okay while areas below that point tend to be where the problems exist. I also know that each person is completely different because small variations can make big differences on what you can feel, how you can feel it, or what you can and can't move."
"That sounds about right," I replied.
"As such, I won't spend a great deal of time above your spinal lesion because those sensations should be normal, however, I do want to do a little bit on your belly and chest so you can get a glimpse of what it feels like. Is that alright?"
"I agree to it," I replied.
"Good boy," she cooed again. "I'm going to start. It may feel a bit...odd...maybe even uncomfortable, but if it's too much, just let me know. I'm going to do three passes in the same area; light, medium, and hard, so you'll know that that's what I'll do to your more...questionable zones, alright?"
"Yes, Mistress."
She giggled sweetly. I could hear her shifting around on the bed. I knew she still wore her panties, but that was the only article of clothing on the fifty-year-old. I felt her warm thigh brush against my ribs. "Alright, here we go on your chest," she said.
I felt a cold, light prickling sensation as she drew straight lines with the pinwheel from my clavicle to my sternum. "Ooh," I said aloud.
"Does it hurt?"
"No, it's just a sensation I wasn't ready for, being blindfolded and all."
"Just tell me if it does actually hurt."
"Yes, Mistress."
"Alright, second pass, same area but a little harder."
I felt her trace nearly the same path but with more pressure. It felt like little claws digging in to my skin, but it wasn't unbearable or even all that painful. "Mm," I groaned.
"Doing alright, sweetie?"
"Yes, ma'am," I replied.
"Once more, but this one will be the hardest I'll go anywhere on your body."
"Alright," I said, taking in a deep breath.