Measurement

Men measuring their large testicles (balls).

Men challenging each other in dick size battles.

Videos of large ejaculations for counting spurts.

Women measuring their own buttocks.

Women's feet being measured with rulers or tape measures.

Men measuring the size of their penises.

Men posting accurate, verified penis measurements.

Men proving their penis size with objects.

Women comparing a penis to their forearm.

Men showing the girth of their penis.