The innovation, invention of Manuela, fart inhaler, it serves as an inhaler, but totally natural, one end goes in the Domme's (doctor's) ass and the other end in the sub's nose, she farts and the gas is passed through the gas, which goes to the mask where it is on the slave's face, she is in the room waiting to be attended to, the Domme enters and she examines to see what is erect, because she says she can't hear well and is not breathing well, so the Domme puts the stethoscope in the slave's ear and the other part in her ass and farts, the slave gets angry and fights with her, she gets angry then, starts to use Manu's invention and starts to fart