Eruca Crawford, Allen's step-sister, suddenly appears to try to drag her brother home.  The day quickly turns into a no-holds barred competition when the siblings challenge each other to see who can teach Charlotte the most naughty things in town.
Step-sister, to be exact.
.أختي غير الشقيقة
Stiefschwester, um genau zu sein.
En realidad, hermanastra.
Hermanastra en realidad.
Sorella adottiva, per l'esattezza.
Por adoção.
Сводная.