The fact that it is erect is definitely exciting. He has a desire to release all that semen stored there. It's our duty to make sure he does. We are SO honored that he would let us do that, when there are hundreds, thousands of pretty white girls who would be able to offer more. What a thrill to be chosen by him at that moment! Me? Li'l ol' me? Why, yes, sir, I would be most pleased to have you use me.
So we enjoy it, focusing on him and his ejaculation, knowing there is a sweet young thing out there somewhere weeping in her unfulfilled desire for this very penis we have. Too bad, sweetie, tonight he wants ME instead!