Sir Cums First, Part 1

My boy wants to come today, but he knows better. Sir always comes first, and Sir definitely CUMS first. You don't cum until I do, boy...and the faster you make that happen, the faster you may get a chance to cum yourself. But of course, as usual, I don't make it easy for him. He's restrained in a predicament that proves to be quite an ab workout, as he struggles to find a more comfortable position since he knows he'll be there a while. Sir doesn't cum easily. But that sounds a lot more like his problem, than mine.