Walking Naked in University Classroom and Biology Lab and Cum on Desk

Since it is summer, and there are no classes now, and it is only a few of us on campus, it is very easy for me to finally get away with being naked in a classroom. I took the opportunity to get naked and walk in one of the classrooms I teach in. I also take a walk around the Biology Lab. Then I sit at one of the student desks and finally cum on it. I didn't' have much cum, as I had ejaculated the night before.