Legendary XL Butt Plug from Doc Johnson's Red Boy Butt Plugs series. Total length cm, insertable length cm, expanding diameter from 3 up to . PARTY FOULS AND BUTT PLUGS?! Preston follows it up with “food coma,” which Red gets, then Barney takes the stage with “butt plug. . THE DUCT TAPE CHALLENGE w/ Ross, Red, Max and Barney - Duration: We got a butt plug from Marc Dorcel and we used it in kind of a challenge. Nico puts it in and we go grocery shopping with the remote. You can.