For the entire four-minute interview while she's sitting cross-legged, you can see her vulva the whole time.
During the filming scene, perhaps because she's getting aroused by being watched, a slippery fluid is dripping from her vagina (you sometimes see girls like this!).
It's an older, short video, but quite a masterpiece.
I downloaded it because there were lots of images that didn't overlap with the main video.
Especially the panty shots around 035-040, I'm surprised they weren't included in the main video.