That's def hot. Surprised she won't budge. I'm in a lucky situation because we have a few people whom really proved their discretion and privacy level. Makes things much less stressful and easy to make things happen. Three diff guy friends and one girl. Although she is also a bit limited on her...
Truth be told, mine simply prefers a MFM threesome anyway. No surprise, really. I'm totally fine when it comes about. It def takes a special and honest partner to admit what they like. It's never uncomfy that way.
I was lucky enough to see this once with mine. It was random, unplanned and spontaneous. I was only allowed to sit and watch due to the other woman being married and one thing was OK, but not me being a part. Still two of the most amazing hours I've sat through.