A 27-year-old rookie police officer turned a drunken assignation into a felony rape charge earlier this week. Kevin Johnson allegedly met a number of women at a midtown bar Monday night and accompanied them back to the Gershwin Hotel, where the women were staying on East 27th St. They were visiting New York for a hairdressers convention, and Johnson reportedly had consensual sex with one of them. The alleged rape occurred when Johnson, who works......