This might sound a little perverted to you, but once when I was *ahem* looking for my own g-spot, I pressed on it a few times and I got the same clear fluid excreted.
Or if I get aroused over a long period of time, i'll feel as if I need to urinate, but when I do, it's a whole lot of that clear fluid. It's kinda weird.
..............
But yeah, as all the other ladies here have said, it's normal.
.........
Scaredbaka