Workout Session Slip-Up

I'm a personal trainer and married, but I have to confess something that happened last week with one of my clients. She's in her early thirties, fit but looking to tone up. We had been working out for a few months, and everything was professional until this session when we both ended up alone at the gym late on a Friday night. There was an unexpected intimacy, leading to a moment where I found myself touching her in ways that weren't exactly exercise-related, and she responded with equal passion. It happened once and it won't happen again. Just wanted to put that out there.