Go a little faster now, but stroke just a bit lighter. By the end of this little test I want you to have edged so much and be so close to orgasm that you could just cum to the sight of me. Now that would be deliciously hot.
Keep stroking like that for around 3 minutes. Spit in your hand if you need a little lube. Rub it all over your cock. I love a messy little slave.