Well ... theoretically of course ... I would think that a sub in that situation ... well, *any* of your pets who are so inclined as to respond to your invitation above ...
... would be finding the anticipation both agonizing and delicious, like an itch than can't be scratched enough.
Particularly if he knows that The Other Guy is aware of him, and his predicament ... that the other guy is confused but intrigued by the whole cuckold dynamic ... amused to think that there's a submissive chap somewhere actually paying for the arrangements that he is all too happy to benefit from ... amazed to be told that not only is the submissive guy paying for the date, but that in the meantime he has also agreed to surrender and forego his own physical pleasure ... because for some reason that pleases and amuses *her.*