"For the record, why don't you transform into someone else? It's kinda strange to make out with a little boy." You reply. "Look, babe. I'm not... It's not like I don't like you in the form of a little boy. It's just that -"
"Relax, hun. I know what you're talking about." Your shapeshifting girlfriend replies. "Don't worry, I'm not upset or anything."
"Phew,... thank god." You relieve.
"Anyway, let me remove all my clothes first," your shapeshifting girlfriend in 10-year-old boy's form uses her/his ability to make entire clothes vanished without a trace, leaving him/her youthful naked body. "So, who do you want me to be?"
"Well, I think someone who is the same age as me or even older." You thought.
"Okay, well, who would I be?" Your shapeshifting girlfriend asks again. "Obviously, I could be anyone like your family members, your friends, your classmates, teachers, celebrities, or even random. So take a guess."
"Alright, how about..."