t of town :/
3/27/2009 7:28:30 PM
Among humans, flatulence occasionally happens accidentally, such as incidentally to coughing or sneezing or during orgasm; on other occasions, flatulence can be voluntarily elicited by tensing the rectum or "bearing down" and subsequently releasing the anal sphincter, resulting in the expulsion of a flatus.
3/27/2009 7:35:05 PM
k
3/27/2009 7:39:54 PM
3/27/2009 7:42:00 PM