Learn from Mr. Manny, Sexfighting Coach:

A word of advice to the up-and-comers: you have to understand how you react to every element in a match. Example case, a student of mine, Jeanette. Petite girl with some ass, loads of energy, flawless technique, and a killer tongue-wrap finisher. Big league potential. She’d out-fucked every guy in the gym and was favored to steal a title at an upcoming bout with the local champion. Two days before, some no-name fighter challenges her out of the blue. What the hell, she figures, it’s more practice. So she and the guy get down to it, only with one snag: he’s huge. Bigger than huge. He’s the biggest she’s ever seen. She’s only really sparred with modestly-endowed guys and practice dildo-dummies, but she figures a cock is a cock and goes ahead with it. She starts strong, putting him on his back and slowly working the goliath meat into her to give him her patented on-top hard ride. But when she hilts him, something clicks deep in her. All it takes is the lightest graze of his thumb over her clit, and she feels her temperature rise. Her pussy convulses, and she lets out a moan that rises into a wails she realizes at the worst possible time that she is a huge size queen.

She didn’t come back to the gym after that. Last I heard, she’d been hurrying out of a sexfight supply shop, embarrassed that someone might recognize her, clutching a forearm-sized silicone cock in a plastic bag.