Okay let me check how long you can take. Don't edge just yet. I will give you a reward if you don't edge.
Start stroking.
50 strokes in 30 seconds
50 strokes in 2 minutes
30 strokes in 10 seconds
50 stroke in 3 minutes
You are awarded 50 spanks on each butt cheek. Get them as red as possible so that whenever you sit tomorrow you know it was a gift from your mistress.