Body image, purposes of our body parts, cultural influences, sexual enjoyment, importance of size.
But if it works, and it is natural and safe, I would like to know that too.
I remember listen to someone who was an expert in south american rain forest "herbs" that help the local people with all sorts of sexual potencies and disfunctions and increased enjoyment. Funny thing was, he had nothing to sell nor did he reccomend or represent any company. That might of been the most shocking part of his talk.