Wierd Anal fingering is good for men's organsms says wiki!

I looked up about masterbation on wikipedia, and stumbled onto figering, this later lead onto female anal fingering (which I found funny), then it said:


"Anal fingering is an effective way of stimulating the prostate gland of men, and thus bringing the receiver to orgasm."

This then lead me onto a biological explanitary page which showed this picture of the penis' connection to the anus through the prostate gland:

http://en.wikipedia.org/wiki/Imagerostatelead.jpg

This page stated:

"The prostate also contains some smooth muscles that help expel semen during ejaculation."

I find this odd and enfuriating that one of the only forms of increasing a organsms pleasure is throught bum f**kin yourself.