You better add some more lube now.
Watch this movie:
http://www.tnaflix.com/view_video.php?viewkey=6ba5d45e58a76e6a73dc
Here are the rules:
1. Do not cum, if you have to take a break, keep track of the time
2. Sit on your hands and don't touch your cock until she cuts of his underpants
3. You will stroke your cock as close to the same pace and style as she strokes his
4. Stroke it through the ENTIRE video, again DO NOT CUM. If you need to take a break from stroking you may, but keep track of the time you waste not stroking.