This is a 2 part film. This first 13 minutes is a custom involving: a panty fetish, sexy, playful, pussy wedgies and sexy bum wedgies. Sexy flossing type wedgies with a thong.
ALSO squats shown from the back and nude, directly over top. As in, on your face, pussy/ass so close you can taste it.
The second part is 2.5 minutes shot in portrait mode and has a bit more extreme wedgie action. I stretch the same thong up as high as I can, showing my front and back, embedding the fabric where nothing has ever been before. It did sting a bit despite my giggling but also felt good in a weird way that I had never felt before. 
The remainder of the film is a montage of photos, about 40 of my pussy and ass in these panties stretched to varying capacities.