Cumming?

So when I have sex I can squirt and it feels good, but I've never came. Some people say it's the same thing, but like if you watch porn (let's not pretend we haven't seen it at least once) or look up on the Internet it's like a large amount of white liquid that comes out the vagina instead of urethra. And I just want to know if anyone one does it if you can help me figure out how I can do it.