Or is this just another example of god's well know hilarious sense of humor, making it feel good and then banning it as "unnatural"? There are ladies on TER who specialize in prostate play, guys who wax enthusiastic about it, and of course TS and gay folk go for it. So in all seriousness, please educate me, why are prostates designed to feel good when rubbed?  

power seeking church assholes did, which is even funnier. I've only done it once and don't plan to again, it felt "weird good" and I can't say I enjoyed it per se. Kind of like the excessive slobber BBBJ, gets the job done but not my cup of Earl Grey old chap.

If someone likes shit shoved up their ass, fine by me. but count me out please. I have found that surprisingly enough I do enjoy a nice soft, wet tongue down there, but the moment you start pushing on that sphincter muscle, I start to have rather violent reactions that I simply cannot help.

Think about it

guess I went 100% male when that testosterone kicked in!

And no, I'm not man enough to say nipples. I'm sorry. Lol. Lol. Lol. But yes, please. Thank you. Oh lord, YES!

Perhaps it cuts down on prostate cancer, and makes men more likely to be able to function sexually, thereby enhancing the species.

She doesn't much like doing it, and I am generally grateful for her small hands. It only seems mildly erotic to me, which isn't enough to offset the need for gloves and lubrication.

nipples are on the outside, but prostates are hidden way out of the way in the dark. Someone must have been monkeyin' around with them prostates pretty far back in our evolutionary tree for it to develop pleasure signals. Before the genus Homo Maybe our primate cousins enjoyed male-to-male butt fucks as a way of cementing the group so to speak? Would some little simian go fishing in another one's tush with an unclipped finger, or a termite stick? Maybe someone on this board can write their doctoral thesis on the development of homoerotic behavior as a critical tool of higher primate social cooperation.

I think it's just a function of how we are "made".  There seems to be an analogy between the male prostate (p spot) and the female g spot.  Both sexes basically start as the same proto human in the womb during development, then sexual characteristics of a particular sex develop later.  In fact if you look at g spot and p spot massagers they are essentially identical.

fyi check http://www.happymassage.com/wiki/Benefits_of_Prostate_Massage

check out http://www.iflscience.com/health-and-medicine/why-do-men-have-nipples

Three engineers were discussing the nature of God.  

but I'm thinking that some gal (or guy) decided it might be fun to stick their finger (or cock) up some friend's ass and the friend rather than punching them out, told them - in so many words or grunts - that they liked it.

While we are theorizing - I put my money on aliens.  You know how they like to abduct some random schmo, transport him to the mothership, and stick an anal probe where the sun don't shine?  Or whatever star they come from...  Anyway - one day they hit upon someone who just happened to like it.  Perfectly explainable.

The prostate plays an important role in the reproductive organs. Prostate fluid is excreted during orgasm because the prostate contracts (squeezed by surrounding muscle). Prostate fluid makes up a good deal of the content of semen and is important to the success of the fertilization process. It contributes to the mobility of the sperm.

One day a wife said:  Sex is a pain in the ass.  

Because we like to have them sucked? Props to you if you can suck my prostate!

It only "works" if your Dr does a bbbj at the same time ...