(Gravity Falls AU {{Multi-Fandoms}}) Reverse Gravity High is for those with a twin. But just not any twin, no a twin born to be your polar opposite. Some cases the womb is shared with them, other cases they're not. It's their are even cases with twins where the twin born with the other isn't your polar twin. Just a normal one. "Bro Bro!!!" Mabel Pines, my non-polar twin, yelled at me. "My polar is so mean!!!" "Sure she is, she's your polar idiot," Mason Gleeful, my polar twin, told her. "Y'all already knew this." "Question...What did she do?" I asked. "She hit Will Cipher!!! He didn't do anything to her, was just walking with his friends, the Gummy twins." Mabel cried