Workout and Unexpected Desire

I'm a personal trainer, married with kids. Last night at work, helping someone do squats in her leggings, I felt this intense attraction towards her. It wasn't just the workout vibe; it was more like an urge to touch her skin, feel those muscles moving under my hands. Strange how such a mundane task can spark something so unexpected. Ended up talking about her fitness goals for longer than usual before wrapping things up. Back home, I couldn't stop thinking about her legs and the way she moved. It's not like me to be distracted by clients, but there it was, plain as day.