There are many great words on this thread. I haven't seen one indicating that porn is often a gateway for much greater sins. Like child, and sadistic things. It'd be a deal breaker for me sisters.
That's why the vices and sins, or like Hebrews 12 says:
Therefore we also, since we are surrounded by so great a cloud of witnesses, let us lay aside every weight, and the sin which so easily ensnares us, and let us run with endurance the race that is set before us,
Hebrews 12:1 NKJV
http://bible.com/114/heb.12.1.NKJV
You never know where the sins, vices, and weights (which aren't always sins of themselves) are going to take you ultimately. Instead we, all to often, want to argue about how close we can live to total ruin and still be 'good.'
When the bible says, not to give even the appearance of sin in our lives. Live above reproach, don't give the devil a foot hold or have nothing to do with the unfruitfull works of darkness. The list goes on and on.
Sisters this is like uhhhh.....red flag city