Sucking a Black Cock in a Public Toilet

I’m on my knees on the floor of a pub bathroom sucking a big cock non-stop like a good whore while the guy films me. They knock several times on the door and I always answer the same: “Busy”. I rub it up my ass a bit, but we can’t spend a thousand hours there so I end up asking for and getting milk on my face. He cums in my mouth and I spit it down the toilet.