Well when the door opened outside the door was Emily... but Emily was right next to me half naked trying to get her clothes on with me. The Emily that entered the room saw me and little Emily putting on two sets of clothes both of which were way too big for them. Added on that one of the clothing sets were for a teenage adult that were unfamiliar, and the big Emily got a large grin on her face.
The big Emily started laughing and asked "Ah, little Emily what did you tell that guy?"
While I was quickly trying to put my clothes on Emily said "Well... I was a shapeshifter and... Well he wanted to be in his little brother's body so I thought-"
The larger Emily started laughing harder so I said "Hey! Knock it off, while I'll agree this is a little embarrassing who are you her little sister who took her form?!?"
The larger Emily said "My name's Josephine, and these curves you've probably fondled and this face that you probably fell in love with. Well I grew them naturally, this is my natural form. I'm guessing you were what 17? Well you were dating and just fucking a 12 year old."
I was getting a little angry and said "No, she's... How can I even confirm you are who you say you are?..."
The small Emily besides me grabbed my arm and said "She's telling the truth... this small flat form is who I actually am. We tend to emotionally mature faster so it's not that weird for us to date while I borrowed my sister's body... Really though I umm... was dating you to get a better understanding of the male anatomy, but you are nice an-"
Josephine said "You developed a crush on his kid brother didn't you?"
I looked to Emily who blushed a bit and said "Well... Umm...."
Josephine sighed and said "Twerp get dressed in your form's regular clothes." Emily dropped the clothes she was trying to put on and scampered at her older sister's command. Then Josephine pointed to me and said "Meanwhile let's do something quick."