You sound like such a thoughtful considerate person, especially in the way you managed that experience with your friend.
Do you think maybe while you'd been able to imagine this scenario taking place before it did, your friend may have not imagined it, so perhaps it kind of took her by surprise when it came to how she naturally felt her way through that experience. Perhaps now she's trying to make sense of it on her own, in her own mind. Maybe it might take her a little while to make better sense of it.
I find sometimes when I go outside the square it can take me a little while to make sense of things. It's more so when I discover a new aspect to myself that perhaps I'd never acknowledged before. Being one of those mind/body/spirit gals and having dyed my hair for years, including back in the day where only 'the weirdos' and 'freaks' did it, there was a lot of self questioning in the beginning. Where do I fit in? Is this who I really am or naturally am? How many people are going to judge my choices or my desires? So it's kind of like your judging your self, your actions, your feelings and your thoughts based on your past beliefs, including a lot of those that are typically conditioned into us, in regard to what's 'normal' or who we should be. Making sense of things can be a challenging task sometimes. Before entering into a relationship with my husband more than 20 years ago, I had a particular female pal. I'd wondered what it would be like to kiss her and she'd, apparently, wondered too. Well, we found out on one occasion and that was it. It was just some harmless wondering between friends.
Personally, I think we should be happy in experimenting with different aspects of our nature, as long as no harm comes to our self or others. Perhaps saying something like 'I think we simply wondered together and shared a wonderful moment. Life is full of wonderful moments, including the ones you don't see coming', could break the ice :)