Oh, come on! I know you're a weak submissive, but you still have to be able to perform my dear.
You can suck harder than that - give it a nice long, hard suck.
There you go - that's perfect.
As I mentioned before, your luck in this game will affect my decision to allow you to orgasm a second time. If you find the cup with the ejaculate in it in your first two tries, and swallow it all down, then you'll be allowed to pleasure yourself once more!
But, if it takes you all three tries - then, so sorry, you lose! But don't worry - that gives you a 2-out-of-3 chance of swallowing the semen quickly and getting your reward!