Over her face, facing the other girl

I kneel of Katy's face and look how the girl thrusts her fingers in her. My balls are right over Katy's mouth. I spit between her tits and slide my cock up her cleavage. I feel Katy's tongue on my balls. She's flicking over them with her tongue. While I slide up and down between her tits she's trying to take my balls in her mouth.

Her tits feel so wonderful and the sight is awesome I can see my dick sliding up and down between her jugs, when I look up I can watch a girl fingering Kat's holes.

Suddenly I feel Katy's tongue on my asshole.

How does this go on?