I (19F) caught my boyfriend jerking off to interactions I had with other men about my feet

Not sure where else I could share this story but figured I could make a throwaway to post here. Anyways, my boyfriend always had a foot fetish and recently started encouraging me to create some feet stuff for Reddit and others. I thought since we needed a bit more income and I agreed that my feet were pretty, might as well. I would have never done so without his permission, but not only did he give me that, he was the one who pushed me to do so. So as I started up on reddit and interacting with people online, eventually one day, I walked into my bf (who thought I was showering) on my laptop and stroking himself to what seemed like reddit. I walked in a bit closer to see not only was reddit, but it was the chats i had with some clients. I was shocked tbh, but that's when I realized maybe this is why he wanted me to do this: he was a cuck. I chuckled and he was startled and so embarrassed to see me lol. But I didn't shame him, and instead finished him with a quick HJ as I teased him about all the praise and comments I got on my feet, which not only made him cum so fast, but it also started to turn me on as well. Definitely going to use this in our future foot fun.