Japan's Tenga wants to make sex toys more mainstream

At first glance it's not even obvious that the sleek, colourful products on display are Japan's favourite sex toys for men, but the store has drawn a stream of couples and tourists since opening this year. "Its openness surprised me," said customer Masafumi Kawasaki, 45, "and made me a bit embarrassed that I'd had a 'naughty' image" of the company. "I might have thought this was some kind of cosmetics shop," he added. Although best known for single-use male masturbation aids, known as cups, the...