Today I take on a challenge! I try to masturbate and cum with my mouth open the whole time. I sit on my hitachi, open my mouth and face the camera. Ample light shows my whole mouth, my succulent tongue, big white teeth, even deep into the back. Waves of pleasure wash over me and it's a struggle to keep my mouth wide, but I concentrate! Before long I'm cumming so hard, mouth open the whole time!