Erika, being eleven, shouldn't have seen these costumes. Her parents had purposefully hidden the box so Erika wouldn't find it. They used these erotic costumes for who knows what. Maybe grownup parties, maybe going to clubs or maybe just wearing for fun when Erika wasn't home.
"What are these costumes?" Said Erika, confused.
Costumes:
Sexy woman
Sexy man
Breast extension
Pregnant belly (9 month)
Penis extension
Furries
Tentacle monster
Cow udders
A fetus
And many others...
Erika was thoroughly confused but her subconscious told her that this was not for her eyes. She was curious though. So she ignored her subconscious and decided to bring Meg the (blank) costume.