i can go from soft to hard and cum without touching myself at all anywhere just by flexing my pc muscle and watchin a really hot video, takes around 10 minutes from soft to cumming, i may post a video of me doing this
also the intensity of a truly hands free orgasm is 100x more than a run of the mill masturbation orgasm
took me a few weeks to fully learn how to do this
oh and i can also cum just from having my nipples played with