Perhaps this is me being self-deprecating, given how many sexual encounters SP's have, I tend to think they've had absolutely amazing sex with other guys, and likely with bigger dicks, and so there's no point for me to try. So I focus on myself and my pleasure.
Though I did have an experience once, where I think the stars were aligned for it to happen. It was an early morning encounter, I was her first customer in a few weeks, she was extremely new to the business, fresh 18 years old.
We were both into it, I was pounding her from underneath in cowgirl, as she grabbed anything she could on the bedframe to handle my pounding, and eventually her legs were shaking uncontrollably.
After I finished, we laughed as the mattress was completely separated from the bedframe, looked like we were looting the place.