it was a requirement for my relationships and something that i was upfront about prior to any relationship getting serious. if the woman i was dating at the time wasn't kosher with porn being a part of my life and therefore a part of the relationship then i just called it off. i wasn't rude about it, i simply said "it's not going to work out in the long run and i'm not going to compromise for it nor do i expect you to" and that was that...
women being afraid of porn or resentful of it is all about insecurity... i mean "why does he need that when he has me?"... now let me digress and the same shit goes for men when they meet a woman with a lot of toys and/or dildos that are rather on the big side... or find out that she likes to watch porn with only big dicks... lols... the insecurities will also kick in as well.
my point is that you should just be honest with who you are and talk about it. if it isn't what she or he wants then move on... life is too short, why are you trying to compromise or change who you are at the cost of the relationship when that may very well be the deal-breaker down the road when you're neck deep and way too vested in the relationship.
to answer the OPs question, my wife (girlfriend then) wanted to see my porn and i showed it to her... all of it. from the vanilla to the downright taboo shit and she was all but too eager to watch/learn about it all (which kinda creeped me out cause i thought maybe she's worse than me) but it worked out in the end. it was anything but interesting all the way through the discovery with her.
honestly though, after a decade of marriage with her and a lifetime of porn, i'm actually more in-tune with her and more interested in sex with her than porn. porn is great and i'm only interested in very selective porn now and it's only entertainment but i do enjoy very much the connection i get with my wife when we fuck. porn cannot replace that and i don't think it ever will...
