In these Oct. 26 photos provided by the Vatican newspaper L'Osservatore Romano, Pope Francis touches a boy's head reads his message as a young boy plays in front of him on the stage during an audience with families in St. Peter's Square, gathered for the Pontifical Council for the Family's plenary assembly, at the Vatican on Saturday. Francis was delivering a homily but a little boy stole the show. Francis was speaking in St. Peter's Square about the important role grandparents play when the boy walked up behind him and confidently climbed up and sat down on the pontiff's white chair. The Vatican said Francis was surrounded by elderly faithful and their grandchildren when the boy came up, wearing a striped shirt, jeans and sneakers. Acting like an indulgent grandpa, Francis let the boy explore the area undisturbed before tens of thousands of people. The pope smiled while reading his speech as the boy sat in the empty chair, gazed up at him and even at one point clung to the pontiff's legs.