A girl farts on the toilet while peeing in the first scene, and just pees in the second scene. The cameraman comments about the smell, but the girl is in denial that her fart smelled.
Girls Gone Gross makes a nice attempt at emulating GirlsPooping.Com! This clip features 7 great scenes in which girls film themselves pooping, farting, and peeing in their own bathrooms.
Brittanie films four separate scenes in which she poops her pants, either deliberately or because the urge presented itself at an inconvenient time. She even pees her in her jeans! Over 6 minutes.