But these pleasant thoughts and memories are having a very arousing effect on you, and you realize that you can't afford them, as you no longer have any beads.
You know you are once again approaching the edge, and vainly you try to tell Sydney to stop.
Of course, you don't really want her to stop, the feeling is exquisite, extremely arousing, and she's amazingly into her own sensuality.
Indeed, Sydney is so into the experience that you can't get her to listen to you.
So you are forced to roll her over to one side so you can extract yourself and avoid an orgasm you can't pay for.