Apparently the human anus can stretch up to 5 inches in diameter (2.5 inches radius). A sharpie marker is roughly 11mm in diameter (.433 inches). Math shows weโre a long way from the max record!
Mrs Dragon taking the Sharpie Challenge again. She took nine sharpie markers in her tight little ass this time, which still isn't bad... but we'll keep working our way up to bigger numbers.