in a region INSIDE you, that is just between your penis/ass.. like in the fucking middle.
it happens every once in awhile and the pain is very intense but very brief and there's usually only like a few close periods when it recurs like within 10 second intervals... i was laying in bed half awake, about time to wake up and that shit happened... it's enough to wake me up to the fucking fullest awareness
lol and you can refrain from the "IT'S AN STD" bullshit comments, has absolutely nothing to do with that as I know I don't have any STDs, and because it's not affecting me anywhere near the surface of anything.