It is, after a lot of build up, through stimulation, like internal finger massaging,(Much more complex than simple fingering) women can expell a lot of liquid like this. If done right like say; after edging a massive enough orgasm, can get a "Sticky Toy"! A ball of mucous that stays slimy as opposed to drying fast and leaving your skin tight. Very similar to Nicolodeon Gak, Side note, she can adjust her excretion fluid flavor by drinking Cranberry juice. You are what you eat and drink.