Most likely you are one of the rare women who can , as it is referred to, ejaculate when the come. Many men find this a huge turn on, especially if you can do this during oral sex. Teenage boy will probably not like it as they don't understand it and you will have to educate them.
Below are two websites that do a better job of explaining what is happening then I can do. According to one of them your partner is doing an excellent job of bringing you to orgasm if you are able to ejaculate. Don't let him get away, educate him and enjoy what is happening.
orphans answered Monday August 8 2011, 5:42 am: Are you sure it is pee? Pee is different to the fluid that is released when "squirting". You will be able to tell if its pee: A strong pee like smell and colour.
Squirting is different, and is normal. It is "the expulsion of noticeable amounts of clear fluid by human females from the paraurethral ducts through and around the urethra during or before an orgasm" (according to wikipedia).
The actual substance release when a female has an orgasm is different to urine. The expulsion of the fluid is completely normal, and many men (and women) find it a turn-on.
If you actually are peeing and not expelling ejaculatory fluids, then you should see a doctor: you may have a bladder control problem. But 90% of the time, you are just squirting ejaculatory fluid: which is completely normal.
Hope i helped :)
Answer edit: You ask how you know if you are peeing: Like i said in my answer, if it is the colour of pee, and smells like it, it may be pee. The ejaculatory fluid may contain a little bit of pee, but that will only make up a small part of it. So if it has a strong pee smell, and looks like pee, then it may indeed be urine, and you will need to see a doctor. [ orphans's advice column | Ask orphans A Question ]
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