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.
If you don't get it, then never mind...
...إن لم تفهم فلا تكثرت إذن
Se non lo capisci lascia perdere...
Se não entendeu, deixa pra lá...