No one can write with another person looking over their shoulder, especially one that isn’t really there. If you constantly ask yourself what other people are going to think, your writing is going to be crap.
Art is about letting go and not worrying about anything, even your own judgement. Conscience? Morality? Leave that baggage at the door. That isn’t to say that every passage should read like a Dear Abby column out of Soddom and Gomorrah, but if it heads there, for the love of salt pillars, don’t stop it.
There will be plenty of people willing to censor you. Don’t do it to yourself. Not during that first draft. What if your mom reads it? So what if she does? Your boss? Let him. Your friends? They aren’t friends if they don’t.