Well, if you're a man like me, you're probably just as used to failures and no's as I am. I think all guys and men have tried countless times to make a move on a girl and just got rebuffed.
Some women aren't as used to it. If they make an offer, it's usually accepted (with exceptions, of course).
So now, when a girl comes to me, suggests another photo session and I kindly decline (which is always very difficult, because I don't want to offend anyone or damage their self-esteem), they can't explain it. Fortunately, I have the excuse that she has too little pubic hair...
But, in this case, she didn't just take the no for an answer. She made a suggestion (more actively than with words) that she knew I wouldn't turn down, abundant pubic hair or not.
And she was right...