Are you starting to have to hold back, maybe even slow down a little bit each time I tell you to stroke to keep from getting too close to cumming?
Who told you to do that? No you are not allowed to cum, but I would much rather have you ride the edge the entire time rather than slowing down or even stopping. That way we fill those balls to the brim.
Is it fair that I am having you fill your balls with cum just so I can force you to unload all your cum all over me? I definitely think its fair.
Since you are starting to get choose I think it's time to choose a place to cum.
One last fast stroke session. One minute. Try not to stop or slow down, but also get to the edge of cumming.