Caught During My Shift

I'm a night-shift worker at a small convenience store in the middle of nowhere. I've been working here for about two years now, and while it's boring as hell most nights, there are always interesting things to talk about with my online friends. One night, we were chatting on Discord when one of them suggested playing a game together. It was a game that involved some light role-playing, nothing too serious or explicit at the time. As I got into it, the mood shifted and before long, we were both sending each other very detailed messages about our fantasies. The words started to get me worked up and I could feel myself getting aroused, but I didn't want to stop for a moment, even though I was alone in my small back room at work. I continued to type away on my phone, and before I knew it, I had sent a message that included pretty explicit details of what I wanted from this person. The reply came almost immediately, asking if I really meant it. And in the moment, without thinking about consequences or even how far I was taking things, I said yes. It went on like that for an hour, with me and my online friend sending each other very explicit messages back and forth, describing in detail what we wanted to do together. It got so intense that I could hardly focus on work anymore. The fantasy kept playing out vividly in my mind, which only made it harder to concentrate. Eventually, as I was still typing away at the screen with heated thoughts and words, one of our regular night customers walked into the store. He saw me there, completely engrossed, typing up a storm on my phone. There's no way he missed what I had open, a bunch of very explicit role-play messages back and forth between me and another person. He stood there for a moment before saying something like, 'Whoa, man. You okay?' I froze, not knowing how to react or explain myself. The embarrassment was overwhelming as the realization sunk in that my secret kink fantasies were out there for anyone who might come into work during my shift to see. That night felt like it would never end. After he left, I deleted everything and tried to pull myself together before the next customer came through. But the feeling of being caught lingered all night long.