I have never felt shamed when someone, singular or plural, male or female, has watched me wank or even photographed or shot a smart phone video of me wanking erotically providing it stays within our circle. In fact I get so much pleasure out of attempting to put on the best display that I can. The only time I have felt shamed is when one person (an ex friend now) shared a video of me when I once became so over excited during a party game that I shot my load almost as soon as I started gently feeling myself. The short video went way out beyond our circle and into the community and caused me, and some of the party attendees, some huge embarrassment for quite a while. I'm personally over it now though and can even laugh about it - well sometimes!