My Secret Fantasy in the Gym Locker Room

I’ve been in a committed relationship for five years now, but there’s this one fantasy I can’t shake. It all started when my partner was away last week and I found myself alone in the gym locker room after hours. The dim lighting and empty space made me feel strangely liberated. As I was changing into my workout clothes, I caught sight of a reflection that ignited something primal within me. My hands wandered over my body, exploring each inch with a fervent desire. I slid a finger inside myself, feeling the slickness as my breath quickened. The sensation was electric, intense waves of pleasure coursing through every nerve ending until I climaxed against my hand. It felt wrong yet liberating, and I can’t stop thinking about doing it again. Is this normal? Should I tell my partner?