Vigina What Is This White Stuff In Vigina And Anus While Having Sex?

What is this white stuff in vigina and anus while having sex? - vigina

When I sex with my girlfriend, I often see it has a lot of white substance that his case apparently Fens and around your anus. It looks a bit like male ejaculation and is very slippery. What is it? I do not know, but I want to make sure it's normal.