According to an Italian urologist at the University of Verona, Dr Maria Cerruto, wearing moderately high heels (2 inches) might "work the pleasure muscles which are linked to an orgasm" -your pubococcygeus, 'Kegel', or pelvic floor muscles.

Dr. Cerruto studied 66 women under the age of 50, finding that women who held their feet at a 15-degree angle to the ground, like when wearing a two-inch heel, had 15% less electrical activity in their pelvic muscles, suggesting that the muscles are more relaxed with higher heels, increasing their strength and ability to contract.
So, while high heels are proven to cause stress fractures, joint problems, bad posture and back pain... they might save you from doing 15% of those 200 kegel exercises you are supposed to be doing every day. Personally, I think Dr. Cerruto is just trying to justify wearing painful shoes. She's quoted as saying, "I adore high-heeled shoes and I wanted to find something positive about them,"
"In the end I achieved my goal."
There's dubious scientific merit in a study where the researcher decides what they want to prove before the research is conducted, but I think we all know where Dr. Cerruto is coming from, "Like many women, I like high-heeled shoes, and although they are sometimes uncomfortable I continue to wear them in an effort to appear more slender and taller." Yes... don't we all.

"It's good to know they have potential health benefits." -except the aforementioned joint pain, stress fractures, and back misalignment, oh my!

Italians do seem to have a special relationship with shoes. When I was traveling through Verona, Padova and Milan, my adorable CouchSurfing host, Giuliano Giuliani, was simply aghast that I would wander into Italy with just one pair of sneakers "You cannot come to Milan with just one pair of shoes!" Oh, but I did... though I could not spin three times on my heel on the testes of the bull (it was supposed to be lucky).
www.flickr.com/photos/mon.../114315727/
Perhaps if I had been wearing heels it would have been easier... though I really don't think it's any substitution for doing your kegels, grrls. Not only do kegels help you enjoy jumping on trampolines later in life*, but they make sex better!!
For women, kegels not only enhance the pleasure for your partner (you can squeeze him tight at just the right moment), you also have stronger, more intense orgasms!

For men, in addition to being able to make your turgid wang jump (a show of which I will never tire) kegels make you last longer and make your orgasm more intense. I've even heard you can hang a towel over your erection and raise and lower your 'flag' at will (www.askmen.com/love/love_...ve_tip.html ) -go on, see who salutes!!

I'm doing my kegels right now, aren't *you*? Hooray! Better orgasms all around!!

*The Gory details: Not only does doing your kegels make childbirth easier as the perineum is less likely to tear or require episiotomy, and prevent you from wetting yourself when you sneeze or laugh later in life, but it also prevents the prolapse of your pelvic organs, which is when the pelvic floor muscles become so weak or damaged that they can no longer support the pelvic organs. (The uterus is the only organ that actually falls into the vagina, the bladder and bowel just push up against the vaginal walls.) *shudder*