"I can taste the bubbles!" - Stifler
Watersports belong in the category of fetish somewhere below analingus/rimming but well above the hardcore world of BDSM. Consider this thread a primer for the curious.
1. What are the watersports?
There are two watersports (as opposed to 'water sports' such as diving, marco polo, etc); being urinated on, and drinking urine. Thats it. A pretty brief gamut of sexual possibilities.
2. What isn't a watersport?
Generally the three most common 'not a watersport' events are watching someone urinate, catheter play, and people "accidently" urinating in their clothes. The first is a common scene in voyeurism, but since nobody is getting pee'd on, then it isn't really a watersport. Using a catheter to cause someone to pee, or prevent them from relieving themselves falls under the 'Medical Play' banner. And people pissing themselves (usually Japanese schoolgirls and european women in business suits if I am to believe what porn tells me) falls under the 'humiliation' fetish.
3. OK, being pee'd on doesn't sound too stomach churning...tell me more.
There are a couple reasons people want to pee on, or be pee'd on during sex or forplay. First there is the sensation aspect; this is easily judged by taking a mutual shower, turning the water to cool, and emptying a bladder on somebody. The interplay of hot urine and cold water make for quite an experience. Plus you're already in a running shower so there is no clean-up.
Another aspect would be people who just enjoy doing something that most people wouldn't do. Theres a 12 year old boy still alive in all of us, and Mtv's Jackass made alot of money, so surely this must be a popular philosophy.
The third most common idea behind being urinated on is during humiliation, D/s, or BDSM play. Using somebody else as a toilet must have some universal appeal or else it wouldn't be a staple of pornography in every country that has access to videocameras and televisions.
4. I'm aroused. What can you tell me about drinking or tasting somebody elses urine?
I tastes like hot salt water.
5. No really, what else is there?
Not much. Unless its part of your D/s slave schedule the only people who routinely drink urine are urine-drinking fetishists who don't need a thread on Men's Health to tell them how to do it.
6. Is it dangerous?
In small quantities no. But much like seawater, if you drink too much you'll get sick, the salt content of urine will cause most people to retch unconsciously as the body has a reflex action built-in to prevent to much salt intake. You'll get the same effect if you try eating salt with a spoon. (and do it too often your bloodpressure will spike and cause serious problems).
Most people can't and shouldn't try swallowing your partner's entire bladder of pale ale, but generally a mouthful isn't harmful and usually enough to provide the required sexual thrill.
7. Don't some new-age doctors prescribe drinking urine?
Yes, but they are probably crazy. Tasting urine was used long ago to diagnose some medical conditions (including diabetes), but electronic machines with far more sensitivity are now widely available to healthcare professionals.
8. Anything else?
Yes, urine cleans up nicely with a common cotton towel. Urine doesn't stain and it can be machine washed with any brand of detergent. Or you can do all of your watersport forplay in the shower/bathtub for easier cleanup.
9. My dominatrix is planning a fancy dinner party that will involve a female slave urinating into wine glasses and serving it to guests. What kind of food goes well with pee?
Generally anything that goes well with salt is probably good. Anything with onions, nachos, pretzels, baked fish, oysters, and corn on the cob.
And if you're using your good crystal urine should go in the red-wine glasses, despite the fact it looks more like a white.