I hope you don't mind me touching myself slave, but all of this activity does get me awfully horny. I'm sure you won't get distracted and can keep your head in the game, right? ;)
If I'm going to get off I'm going to need some arousing material... you'll have to do I suppose! You can stop with the hip thrusts now, but keep jerking off with two hands like that.
Give me sixty seconds of that, and then follow this link to roll a dice.
https://www.random.org/dice/?num=1
What number did you get? Hope you've got the self restraint to keep yourself from spilling your load before I say you can, because that's how many times you've got to edge for me! If you roll a one then you're very lucky, but for anything else it's a six second rest only between edges. Get on it, sissy, I don't have all day!