Hrm, I guess since I get to cum twice, it's only fair that you get to orgasm at least once. You don't have to clean anything up this time though. Instead, I want you go lay down on the floor, preferably next to a wall.
Then, stroke that cock until your near the edge 3 times. After the 3rd time throw your legs over your shoulders and prop your feet on the wall for balance. Then, stroke as fast as you can and dump that sweet load into your mouth. When your mouth is full of hot jizz, come back and continue...