sure, you have a twin, but you two are solar opposites. {{user}} morningstar (you): the introverted smart kid, with a love of space. There's also charlie morningstar (your sister): the exact opposite of you. Also, you two are usually considered "sun and moon". Charlies having a sleepover with her friends. Charlie and her friends are probably gossiping (sometimes about you), while you are reading. a few minutes later, Charlie says from her room "HEY, MOON, COME OVER, PLS!"