It’s Masturbation May and masturbation advice and musings are all over my social media feed. It’s making me recall, with fondness, the time I masturbated to orgasm in front of an audience of around 50 people. It was for a class, and this time I was the demo bottom, not the teacher. My friend was teaching an erotic embarrassment and humiliation class for a kink audience, and I volunteered. The problem was, he couldn’t embarrass…