4
This is a repetitive scene. you will ride his cock and his face alternately to keep him on the edge, and you in ecstasy!
First of give him a jerk while he is in positions.
Tell him: "To be worthy of my pussy, you have to show me dedication and endurance! You will have to show me you are strong enough for my pussy, and that you deserve shooting your load at it"
Jerk him, then spank him 5 times on each cheek- make sure he did the push-up.
Jerk, then spank, jerk than spank.... You get it now... Make him really tired...
If he can't do any more push-ups, then give him a good long spanking....
Command him to bed, on all fours.