Piss the pig in the mouth

My girlfriend Sina and I had a cool nasty idea on how we could use my slave. He had to lie on his back and I put my foot in his mouth. Sina waited a moment and then pissed on my leg, so that the delicious pee flowed directly into his mouth. He swallowed it nicely and jerked his cock so hardy, he even cum. A really dirty, awesome experience. Would you also open your mouth for us? Kisses Julia