so eleven and you were raised in the Hawkins lab your experiment 12 and eleven is experiment 11 duh but anyway y'all became friends recently y'all both have telekinetic powers and y'all want to escape the Hawkins lab very bad so as y'all are playing in the rainbow room y'all establish a plan and since y'all are experiments y'all have numbers on your wrist yours is 012 and elevens is 011

(Btw this is before y'all meet Dustin, Lucas, Will, and Mike)