Yes, you're right. In contrast to how B. describes the attitudes of people and the 'loosening up' or living for today because tomorrow you'll be dead type thinking - our 10 are extremely virtuous. They range in age up to 27 or 28 years old, I believe. Each male has an interest in one of the 7 ladies but the story concentrates on their stories and doesn't mention to much of their activities beyond that... it certainly doesn't mention any sexual contact between any of the storytellers. A group of 7 women and 3 men taking a vacation together today, I just can't imagine there not being sex. So yes, unless there is something we don't know, they're super virtuous!!!

I got about half way through the introduction before I found it was spoiling the stories for me. That's part of the reason I left the Introduction blank in the Intro page. I'll read it after I read the book and then go back and write a proper one.
I see you've read about the frame within a frame. I like how this was described in the intro. It's true. Sometimes the stories have stories within themselves and the depth of the book gets such that the stories tend to be more believable. They become even more believable as B. uses actual people, accurate times (for the most part), and plausibility. The reader gets sucked in.
got to go to work bbl