I used to work for a government agency (one of my first real jobs, actually) and there was an AMAZINGLY hot, flirty older woman (big tits, big hair, dragonlady fingernails) who would cause me to stroke it in my cubicle (it was glass-enclosed, and so I had a perfect view of her while I jerked it under my desk). She was old enough to be my mother, and it was weird at first, but I totally killed billions of sperm while working at that job.