He would be absolutely forbidden to spill a drop of his hot liquid. I would frig and toy with him most cruelly, slowly stroking his burning flesh gently up and down at length between the soles of my shoes until he could no longer withhold his sperm. He could not escape my goading red spikes. He would groan and squeeze his muscles, helplessly trying to resist my urging feet, but his organ would be heartlessly stroked until forced to squirt.
However, I decided to do otherwise, removing my feet from his cock, leaving him to throb in the empty air.