There are thousands of people out there that willingly give up their modesty to the camera for pay to be degraded, if you really lack any imagination at all. I'm not saying I've never done it, especially as a pubescent adolescent thinking of an elementary school friend's MILF, and I can understand how stray thoughts here and there can enter at any time, but what kind of animals are you people that you see a nipple bump or nice curve or something at work and need to immediately shoot off in the nearest bathroom? It largely comes down to respecting the values of the people around you, though. If a person makes an effort to flaunt their sexuality at all times, they're sending messages that it is acceptable. This is why I personally find it much easier to masturbate to images of women with piercings, tattoos, etc because it shows they have no self-worth and therefore my own sexual deviancy is not doing any harm. An attractive co-worker with no indication of sexual interest, however? Off limits. It's like the abandonware principle applied to fapping. Downloading here and there is fine when the creative party is unlikely to care, but when a person tries to build themselves above a simple bag of fuckability into an actual human being, you're just being a sexual consumerist whore.