It identified a handful of differences between gay/bisexual people and straight people. This included the US, India, UK, Australia, Japan, Russia and Germany. Sexual pleasure brand TENGA, in conjunction with pollsters PSB, surveyed 13,000 men and women, aged 18-74, in 18 countries. To coincide with Masturbation May (yes, that’s an actual thing), the results of a major survey into the masturbation habits of men and women around the world have been revealed.