Visual pornography certainly has its place, and that place is my computer screen at 10 p.m. on a Friday night whenever my girlfriend is out of town. Her smashing success has only strengthened the sociologically murky idea that getting turned on by words rather than images is somehow unmanly. James, the British author of the erotic novel Fifty Shades of Grey and its litter of sequels, has sold some 54 million books worldwide.