"Let's try transformation spell, hun." your girlfriend said.
"Good choice, babe." you replied your girlfriend. "By the way, do you know how to use it?"
"I don't know, let me try to look at this book, there's gotta be a instructions about this." she said as she try to find the pages that could help both of you to use it. After a couple minutes later, she finally find it, and the transformation spell instructions tell that: to use the transformation spell, wave your hand, think of the person you want your subject to become and say 'abracadabra' then point the person you want to transforms into.
"Wow, that was easy." you said.
"I know right. But anyway, who will be the subject?" your girlfriend asked.