<p>I remember shortly after I got married, my new husband and I were staying at my parents’ house over a holiday, and H and I were in the bedroom and I was getting undressed / changing my clothes. Now, of course, there was nothing wrong (and everything right, ha ha) with my changing my clothes in front of my husband. For whatever reason, my mother walked in and I didn’t realize it as I was pulling my sweater over my head at the time. Now, of course, I wouldn’t think twice about changing my clothes in front of my mother, either. But there was something that was really odd to me about not being clothed in front of both of them, together. That even though neither was a boundary-breaker by themselves, changing clothes in front of the two of them together was a boundary-breaker. I think somehow that relates to what we’re talking about here - levels of intimacy, but not with several people at once. (Well, unless that’s your thing, and who am I to judge …)</p>