20 second JOI games

This is the third Clip in this series. Do not attempt until you have mastered the first two. Heehee MMMM I so love to invent new games and boy do I have one you are going to love. Here are the rules, You only get to touch your cock when I tell you to and then for only 20 seconds at a time. You can stroke it however you would like, but only when I say start and you must stop when I say stop. My job in this game is to tease you endlessly between your 20 seconds of allowed stroking. I pose and slowly undress, coming closer, putting my tits in your face, then back again so you can see every inch of me as a slowly run my hands all over my body. How many times of allowed stroking will it take you to finally cum for me