Your pain interests me slave. Do not slow down and do not cum. Focus on the burning sensation and the goddess your cock burns for. I want you on the edge, and stay there. Do not cum, but stay right on the verge. Remain there until the fire on your cock starts to lessen. Take a 2 minute break, this was only the beginning of your punishment.
After 2 minutes, coat your balls with the icy-hot and wait until the burning begins to continue; stroke with the anticipation.