I cheated on my Boyfriend… [NB]

So- It was probably like a few months ago. Around February or March. And I was working out in the gym. Doing squats and lifting weights. Doing All the usual gym stuffs.
My boyfriend wasn’t with me at the time. He was at his house sleeping, as I went to the gym after I got off of work late at night. There was hardly anyone inside of the gym. But- there was this one hot hot guy. We exchanged pleasantries as I walked in and got to exercising.

As I was exercising I looked in the mirror wall that was in front of me, and the guy was staring at my ass. I looked at him back and smiled. I didn’t know what came over me. But the next thing I know. We went into the shower area of the gym and started to go at it. I guess my boyfriend woke up at sometime during the fuck sesh, because afterwards I checked my phone to a text from him. ‘Drive safe sweetheart. Love you.’

I don’t know what to do. I liked the thrill of it. But I knew it wasn’t right. I do want to do it again, but I don’t want him finding out. What should I do?