He only had about 20 minutes left before he had to go back to work after he finished, so I told him he could do just TWO rounds, and I would roll the dice on both of them.
The first one he was pretty damn aroused, and dripped a fair amount of pre-cum on the mirror during the five minutes. He licked it up VERY quickly (I guess he _can_ be taught) and so I didn't delay on rolling his dice. I rolled him an eight, and he went right to it, but I guess he wasn't close enough, because he didn't seem to be anywhere near cumming after the eight. I pointed this out to him and told him he'd have to try better on the second one.