Hi,
Welcome to the ehealthforum and I am glad to help you out. This can be due to squirting or cumming and does not look like urination as bladder does not fill so fast.
Cumming means a sudden spurt of fluid released in response to sexual excitement like ejaculation in males.
It is possible to have both at the same time and sometimes one may not be accompanying the other. Squirting means expulsion of noticeable amounts of clear fluid from the paraurethral glands around the urethra in females.
It is close to the urethra and not clitoris. It is mostly due to extensive and targeted G-spot stimulus, internal and external clitoral stimulus and sometimes combination of the two.
Both of these are normal physiologic phenomenon and there is nothing much to worry if it is happening.
I sincerely hope that helps. Take care.