MOSCOW, Russia (Reuters) -- Vladimir Putin's decision to stop a small boy as he walked through the Kremlin and kiss his stomach was prompted by a desire to "touch him like a kitten," the Russian president said on Thursday. The five-year-old boy, identified as Nikita Konkin by the press, was clearly stunned by the kiss and speculation over Putin's motivation has run wild in the week since it happened. Curious Internet users propelled the issue to the top of a list of questions put to Putin in an interactive Web cast. "People came up and I began talking to them,...