If you are interested to get humiliated then connect to a group which has members with relatively large penis or go to porn site to view large penis stars
but if you are looking for something genuine, here is what I got from internet:
"The average erect penis is approximately 5.5 inches long, but the range of average sizes extends from 1.6 inches to 10.2 inches. Penis sizes vary by ethnicity, but only when it comes to average size for an ethnic group. In other words, a man of one ethnicity will not always have a larger penis size compared to someone of another ethnic group with a lower average size. In general, the average penis length is slightly longer in black or African American men compared to other ethnic or racial groups. The average length in this group is 14.75 cm, but by comparison, the average white or Caucasian penis size is only a quarter of a centimeter smaller, at 14.5 cm. The average penis size among men of East Asian ethnicity is slightly smaller, at 12.9 cm. The global average is 13.71 cm."