POCD thoughts

Male, late 20s. Is it a common thing to think about kids you’ve interacted with frequently (not in a sexual way, but frequently)? Maybe it’s because as an educator I just miss seeing the students sometimes since I work closely with them, but I find myself thinking about them a lot especially if I am hanging with coworkers in the same neighborhood as the school. When I’m at other events in the neighborhood, I am usually happy to see people from the school like the kids, parents, or coworkers. I don’t have any desire to harm any child and haven’t done so, but this has crept in especially over the summertime, and the thought of it being because of attraction freaks me out. I plan to mention this thought to my therapist. Thoughts?