You don't know.

The way she's worded it is so confusing, and all the blood your brain needs to process it has traveled southwards. "No...?" you stammer.

"'No?'", she parrots, squeezing her thighs even tighter, **** your cock between them. "Is that a 'No, you do want to cum now and make me build you up again all night long, just so that you can cover my face with your jizz when the sun comes up'". You suppress another moan as she comes close and blows in your ear. "Or 'No, you want me to keep teasing you for the rest of the day, so that when we go to bed later, you can just fuck me like an animal, that wants nothing more than to plow his partner until you're both quivering messes, that don't know where one begins and the other ends?'"

Your eyes meet hers with fear in them. Both of those options are so appealing. On one hand, you'd finally get some release and be better able to serve Kristi if you weren't constantly turned on. And she's also just said that the two of you would be having sex all night long. But you would have done exactly what she said and wasted your first load here? With just her thighs?

And on the other hand, who is to say that you won't be rutting all night if you managed to hang on. Plus, she told you that what she wants is a big load. How much do you think your balls can cook up in a few hours, compared to the few days leading up to this entire trip. Not forgetting what happened back in the plane and airport.

It's beginning to hurt your head, thinking with only a small trickle of blood, but Kristi's just smiling at you, waiting patiently for you to make up your mind.