"Don't be silly! Me wanting to get off is never going to be a good reason for getting you off now is it, hmmm?"
Sabrina now holds the base of your cock as she starts to slide your aching shaft more insistently up and down between her cheeks, quickly driving you close to the edge. Then she dials it back just a little bit, and holds you just teetering on the brink.
Your breaths are coming in short sharp gasps now, and you have also run out of ideas.