The other morning before work I tried an experiment. What if I was truly aroused and having a wank when using the Progasm? Bear in mind all my other solo sessions involved me lying in bed with no stimulation other than my imagination.
So I popped the Progasm in first thing, had breakfast and then selected a DVD. Out of solidarity for the evacuees of Hurricane Gustav I chose Gale Force, about the sexploits of a gang taking shelter in a warehouse during a storm.
Not only was I able to get wrapped up in a good porno, I was in a different position, on my side on the settee. After awhile I stretched across the floor on the carpet, with a cushion under my chest. It wasn't long before some leg trembling started. I also propped myself on my elbows and rocked my torso from side to side, which set off some shivering. The only trouble I found with lying flat on the flat is that the twitching caused me to hit the floor hard. If I'd been on the bed it would've been more comfortable, plus hanging my feet or arms off the bed allows for more leverage in my limbs.
It started me thinking about the way horses are able to shiver a particular part of their body when a fly lands on it. The fly causes an itch and the horse shakes their hide underneath it so the fly takes off again. I wonder if it's all about learning how to use involuntary muscle movements to our favour, like it's the only way to satisfy that itch.