Edge again, you don't have to ride this one.
What? You wanna cum? *giggles* Oh no, we still have a long way to go. You won't be able to cum for a long time yet.
Keep stroking, I want you to edge 10 times before you continue. Take a 10 second break between each edge, and rub all your pre cum around on your balls. If you manage to cover every part of your balls with pre cum before you edge 10 times, you may continue early.
But don't cum, if you accidentally go over the edge, you know what to do.