No, you can do this

You already feel humiliated by this entire situation, so you won't add to it by begging for a break. You can do this.

You try to focus on anything except the fingers expertly playing with your pussy, the national debt, a plate of pasta, teddy bears, Steve Austin, Maths...

But it's useless, you feel your orgasm building and building and before you can even consider changing your mind about begging for a break, you scream in pleasure and shake in her arms as you cum hard. She holds you close to her as she keeps fingering you through the orgasm. You finally come down from the peak and she rocks you back and forth softly while cooing in your ear. "That's a good girl, good girl." She says as she rubs your hair.

After a few moments to get yourself together, she finally parts from you and help you stand. She gives you a soft smile "I'm sorry Miss, but you lost the challenge."

Blushing, you can't deny that you indeed came and thus lost the chance for a new game. She gives you a towel, allowing you to dry yourself a bit before getting dressed once more. Once done, she shows you a door that appeared on a wall.

"This way for your next trial Miss, I hope you'll have better luck next time." She says with a smile and small bow. You return her smile with an embarrassed one and step through the new door.