Squirting is real but not every girl who "squirts" is really squirting.
As a cameraman, I have had the opportunity (quite a few times) to experience it up close and personal.

Real squirters, like Nicki Hunter, shoot a clear warm stream that smells like sex and tastes like pussy.

Fake squirters, while still clear and warm, smell like urine and taste like urine.

There are far more fake squirters than real ones, but the real ones do exist.