Jam that dildo into your ass as fast as you can, as the dildo in your mouth muffles your screams. Take your other hand and begin jerking your cock as fast as you can.
Keep jerking until a lot of precum ls leaking from your cock. Once you have a lot of precum on the top of your cock, pull the dildo from your ass and rub it in the precum until a mix of ass juice and precum cover the dildo.