Myself and DH are good friends with another couple who are in their late 40s. We have known them for over 15 years. My friend told me recently that her and her DH have discovered swinging and that it has apparently done wonders for their sex life. She asked if I would ever consider doing it. I think the fact that she brought it up was a sign that she thought there was a chance I would be into the idea. I just said I would have to think about it. I haven't mentioned it to DH yet.
I'm wondering if anyone here has done it, especially later on in life. How do you do it without blowing up your marriage?