Good question (the orig. post), although I'm sure I'm not the only one who's aware that many Christians, and even many non-religious people, believe that watching porn is a kind of unfaithfulness, a kind of cheating. Not as severe as actually stuffing some OTHER real, in-the-flesh woman with one's cock-meat, but still, cheating.
And using that as my segue, I'll say that POV vids, cam-chats and virtual-fucking vids, combined with a Fleshlight, really help me to stay "faithful"!
hahaha