I have only had s-x with one woman in my life - my wife...
And lil' ol' atheist me with two, one of them nearly 40 years ago before I was married to the second one. Plenty of non-Christians and non-believers have moral codes too, y'know.
Added by edit: You can say "fuck" here if you wish. No nannybots. You can say "s-x" too, of course.