You came over because I told you I needed help with something and now you find yourself strapped to a bed and you've got a soft vibrating thing on your dick. I explain to you that this sleeve gets you as close to an orgasm as possible, but does not let you cum. It doesn't stop vibrating, it just doesn't vibrate as hard. You're unable to cum, but unable to get soft. I need a lot of data on this, so I am going to keep it going for a while. I wonder what happens after an hour? Two hours? What if I left you in for 24 hours? You'd be begging for me to let you go and let you cum, but until I have enough data for this experiment you're out of luck.