<human>: Condense the text into a few key points

Background: My wife was brought up in a very strict Christian household, with sex being only for after marriage. I was not very religious until in college. We are both still very active in our church. We have been together for almost 9 years, 5 of which married. I love and trust my wife with everything, even without sex we have a lot of hobbies together, and this is not the problem.

 A few months ago it was brought up between us that while we are satisfied with our sex life, we both kind of wished we had been able to have had sex with more than one person, since everyone is a little different. I had one other partner before my wife, I was her first. We talked about it for a little while and decided to think it over for a bit and revisit it in a few weeks. When we revisited it, I told her that so long as she was 100% comfortable with me having sex with someone else I wouldn't have a problem with her doing it. She still seemed hesitant at the idea, but would think it over more. From there, usually about once every couple of weeks something will bring it up and we'll chat about it for a while, but only two points have been brought up since then. One, she is having trouble with the religious side of "sex is for marriage only", which since I don't have as strong of a background in I can't help her and am seeking advise. And two, she had brought up in a fairly recent time when we talked about this that kinda likes some girls as we'll, "it's not like I find girls sexy, but its not not like I find some girls sexy", which I had no problem with and told her so.
<bot>: 9 year relationship's only regret is we both had a very low number of other partners and wanted to experiment, and she may want to try another girl, I am seeking advise on my last two points.