Nothing

"Well, I think we are going to be getting a lot messier," you inform her. You grab her shaft. "Let's just get you satisfied already." You pull down your pants, and run the slick shaft between your legs. You let go and walk up to her, leaving her shaft sliding next to your balls. You stop when your own hard cock bumps into her belly. Then you step off of it and back on, facing away from Sandra. You rub your ass along her slick crotch to get slippery. Then you walk out, put the head at your hole, and slide onto it. Six inches in you feel full. Sandra grabs your waist and fucks you, fitting a little more each time. What is amazing is that as she fucks it grows wider. From a rather normal thickness to what a monster black cock should be. Sooner than you expect, she pulls out. You immediately feel wetness splattering your ass.