Sex Or Bee Jays

[Hasbinbad]

Originally Posted by Alawen [You must be logged in to view images. Log in or Register.]

Apparently, HBB only fucks women (men?) in the ass or in the urethra. Alternatively, it is possible that sphincter is another one of those words where he makes up his own definition.

A sphincter muscle is any muscle that constricts around an opening.
From the first line of wikipedia, which does a fairly good job of paraphrasing any given anatomy text: "A sphincter is an anatomical structure, a circular muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning. Sphincters are found in many animals; there are over 50 types in the human body, some microscopically small, in particular the millions of precapillary sphincters."
Such as:
The anal spincter: http://en.wikipedia.org/wiki/Sphinct...xternus_muscle
The pyloric sphincter: http://en.wikipedia.org/wiki/Pylorus
The urethral sphincters (relevant): http://en.wikipedia.org/wiki/Urethral_sphincter but more specifically: http://en.wikipedia.org/wiki/Externa...female_urethra
The sphincter of Oddi / Glisson's sphincter: http://www.whonamedit.com/synd.cfm/2709.html
And let's not forget the all important UES: http://en.wikipedia.org/wiki/Upper_esophageal_sphincter

but u know .. i just make shit up lol