I need the help of someone skilled in the art of diplomacy. How do I handle this?

I have been collecting tasteful photographs in .jpg form almost since the inception of the internet. Yes I do mean the type of photographs that a man named Hugh Hefner may be interested in. With each g/f I have had and with my (now ex) wife I told them all up front and even told them "if you don't like it and don't leave me over this I will gladly delete ALL I have. No problem. I got lucky each time, my ex in fact said it was ok just so long as she could check out my collection. Turned out she was/is biual and enjoyed looking at them EVEN MORE than I do! MUCH MORE. A large part of the collection I now have are photographs SHE acquired and added to my collection! I now have a collection large enough to choke a mastodon, Truly an embarringly large amount of pics but at least 95% in undeniably good taste for that type of photo, Only a relatively few that are questionable in taste (dominatrix type photographs) and even those could be said to not be that bad. I swear. Not a collection I would care to part with, OK NOW HERE IS MY QUANDARY. I have met who for me is the most wonderful angel of a woman I could ever hope to meet. I believe I can already hear the minister "Dearly beloved, we are gathered here today..." Now I love her enough to delete all 6.27GB. ( as I said, "choke a mastodon," considering every one is in .jpg form. Well over half thanks to my TRULY addicted ex. ) But as I said I would be willing to delete all of it. The problem is how do I even approach finding out how she feels about such ? She & I have never had the subject come up. I DON'T want to be up front bold about it like in the past, With all of the others I was willing to risk losing them if they responded badly. This woman...I would die for her and so it would truly devastate me if she chose to leave me as soon as she found out and that would be understandable. She could reason, 'THAT many pics ? You have a serious problem, Goodbye!' As I said however it was largely do to my ex. I could just take no chance and delete but what if later I discover she would have responded well to that figuring those could have helped spice things up a little. We have talked about many things of course but how does a man even bring up this topic with a woman ? One way would be to say something bad about in general but how honest would a comment like that be coming from me ? I could try saying something positive about it but that could cause an argument too. HOW do I find out if I should delete these or not without winding up sticking my foot, ankle, lower leg, upper leg ALL in my mouth at once? HELP. There has GOT to be a diplomatic way to resolve this. I know, my mother was the greatest diplomat one could ever imagine and could do it. Unfortunately she is not amongst the living anymore.