Once in doggie, he grabs her firm round ass, driving his prodigious prick into her with fiery fervor as she moans like a bitch in heat.
Putting her to work, he mounts her on his dauntless dong in reverse cowgirl, firing it up into her with tremendous energy.
Both of these may be used for the delivery of drugs or to relieve constipation; enemas are also used for a variety of other purposes, medical and otherwise.
One cause of constipation is faecal impaction in the rectum, in which a dry, hard stool forms.
In humans, the rectum is followed by the anal canal, before the gastrointestinal tract terminates at the anal verge.
The word rectum comes from the Latin rectum intestinum, meaning straight intestine.
For the diagnosis of certain ailments, a rectal exam may be done.
It terminates at the level of the anorectal ring (the level of the puborectalis sling) or the dentate line, again depending upon which definition is used.The rectum shortens as material is forced into the anal canal and peristaltic waves propel the feces out of the rectum.The internal and external sphincter allow the feces to be passed by muscles pulling the anus up over the exiting feces.As the rectal walls expand due to the materials filling it from within, stretch receptors from the nervous system located in the rectal walls stimulate the desire to defecate.If the urge is not acted upon, the material in the rectum is often returned to the colon where more water is absorbed from the feces.