Under a minute

You find yourself masturbating at the feet of the dominant woman who defeated you, and despite the watching crowd, you're not having any trouble staying hard...in fact, you realize a moment too late that you've passed the point of no return.

An orgasm bubbles up, and you let out a groan, stroking faster as you begin to squirt your load on the ground between the woman's feet. Cumming feels so good, but shame quickly hits you as you realize you just ejaculated in under a minute in front of a crowd of - very amused - people.

The daughter snorts out a laugh. "That was almost as quick as the arm wrestle!"

The mother only smiles faintly, looking down at you like a conqueror. The look in her eyes is triumphant; she's defeated you both physically and sexually now, and still has nearly the full half an hour to do as she pleases with you...