I should start off by saying that this is not a problem. More like a splendid and very curious occurrence. Please note that this is a serious query, and I'm doing my best to choose my words very carefully so that this does not read like an excerpt from Penthouse Forums.
For the last few months, I've been seeing someone. Casting aside all of the irrelevant details, the sex is plentiful, fun, healthy, not boring and amazing.
Getting to the point... When she - we'll call her Ginger - performs fellatio on me, her mouth gets very wet. The texture of her wetness mirrors that of vaginal intercourse - in fact, the whole process is much akin to vaginal intercourse. She enjoys immensely the act of fellatio and, after a few minutes, her mouth gets wet - as if her mouth or throat has had an orgasm. Note that she regularly experiences vaginal orgasms while performing fellatio - but these are in addition to the orgasms she's experiencing in her mouth.
We jokingly talked about it recently - called it a 'mouth orgasm'. When I got home, I decided to Google it and see if such a thing existed. Turns out it does! But I wasn't able to find too much information on it.
At its base, this is a medical thing. Not a medical problem or a medical symptom per se - but it's the human body, so the knowledgeable here must know something about it. I'm hoping to learn as much about this as I can. Please, if you don't mind, share whatever you can.