On Skype, I’m sharing masturbation with my handsome friend who lives in another part of the world, when he grins sheepishly: “Do you mind if I insert my finger?” I tell him, “Of course not, please do!” So adding more lube, he carefully inserts his middle finger into his anus. I see on his face, the intensity of his bliss notch up even higher, as his knuckle stimulates his prostate while his other hand caresses his erection…