Why are Sex Work and Feminism Mutually Exclusive?

Dear Miss Betty:
March 1st is the anniversary of my first orgasm and I felt it time to thank you for your role in that. After stumbling upon your website two years ago in dire sexual frustration over my "inability" to orgasm, I was inspired by the empowering nature of the material you and Grant have included and proceeded to lay down to enjoy my own sexual responses. Before I knew it - fireworks! I wept and released years' worth of inadequacy.