Piss in bed in mug

I haven't been to the toilet for hours, my cock tied off and I'm horny in bed watching porn that I'm about to burst. Since I have to go to bed quickly, I am comfortable and lazy and piss into a measuring cup. Almost 1 liter of golden champagne comes out of my stiff, tied 17x4 cm cock that sticks out of a semi-transparent piece of fabric!