I think there is a lot of good advise above and I think some of the best is telling you to find a way to communicate with meaning. You don't have to necessarily try to tell him that you want more play time. Tell him how you feel about the overall relationship and what you really want to get out of it and let him come up with the idea that you may need more play time. I think once you get to really knowing someone and really taking the time to talk things over more is picked up on by things that may actually be left unsaid then you may think.

I know I would never want to be doing things that weren't enjoyed by the person they were intended for and it would bother me if that person didn't find a way to let me know. I would feel like I was wasting both of our times if it weren't something we both enjoyed. Especially in an on line relationship all you have is words to make yourself and your feelings known. He has no way of looking into your eyes and telling what you want. You must find a way to let him know. So far, and I'm knocking on wood, that hasn't happened to me, and I'm sure of this, but I would want to know if it did.

Communicate, communicate, communicate.