Sister has long dreamed of masturbating before a consolidated brother on camera

My sister came into my room in the evening and asked to take the camera, I was an obedient stepbrother and did so, went into the room, she took off her robe and said, today I am a porn actress, film me on the camera, press the record and shut up, I was taken aback and obediently began to film how my sister fucks dildo and cums.