Jul 29, - Does a large group of black people generate a lot of heat? . age 17 to 23 and found the average length of a flaccid penis to be inches. A GRAPHIC has revealed the average size of a man's erect penis from all over the What are the largest erect penis sizes on average around the world? . I was big in that department and played football as a defender, the point being, well thats bonkers for a start. a LOT of black men are over 6 inches.