Studies have shown that the longer a male's phallus is, the more elaborate the vaginal structures were.
It is, as ever, just fun, sexy, consensual role-play and a hearty favourite of mine.
Veterinary Anatomy of Domestic Mammals:
Many men believe they have a small penis, even though their penis may actually be very average size.
Cope The American Naturalist Vol.
JP Medical Ltd.
Archived from the original on 7 July
Biology Of Mammals.
The adult male American mink 's penis is 2.
The Illustrated Encyclopedia of European Birds:
In giant anteatersthe retracted penis and testes are located internally between the rectum and urinary bladder.
Archived from the original on September 5,
In male insectsthe structure analogous to a penis is known as aedeagus.