Now I've got my own place I constantly worry about masturbating and leaving odors that will linger and I won't notice because it's a constant stimuli but a guest might because it's a fresh environment for them and they might have superior smell. I wash my dick after in case any cum residue gets stimulated by my body heat and evaporates into the air at a later time. I try to keep rooms ventilated and leave open windows open after doing it but I still worry they will smell something. Is this rational or am I developing OCD?