The girls spend a night sharing horror stories. Just as the boss yells at them for being up past bedtime, they count an extra member in the group.
This is all because you guys 
were telling horror stories.
كلّ هذا لأنّكن كنتُن تروين قصصَ رعب
Das ist nur, weil ihr euch unbedingt
Gruselgeschichten erzählen musstet.
Todo es porque contaban
historias de terror.
Todo es porque contasteis
historias de terror.
La colpa è vostra che vi siete messe
 a raccontare storie paurose.
Tudo porque vocês estavam 
contando histórias de terror.
Всё потому, что вы вечно 
рассказываете страшилки.