*knock* *knock* *knock*
"Helloooo, is there anybody home?" said the person who is knocking and spoke on the front door at your home. You both shocked as you and your shapeshifting girlfriend in your sister are still naked without any clothes and sit on the sofa. "Helloooo, can somebody open the door or answer me, please?" the person outside continue to speak.
"Oh my god! Holy Sh!t!! Like, there is somebody here, what should we do, br... I mean... hun?" your girlfriend/sister asked and whispered as she's panic.
"Well, first of all, we need to dress up before somebody see us naked. And secondly, please just stay calm, let me check out the door while you stay and hide in my room, okay babe?." you reply your shapeshifting girlfriend as she's calm down and nod. Then, you both quickly dress as soon as possible, soon your girlfriend appears to have some her clothes back on, but except you dress a little slow because you don't have a power of the shapeshifter just like your girlfriend. Finally, when you both got dress up, you look at your girlfriend and impressed her. "Fewww, finally all of our clothes back on." you said as you're relieve.
"Yeah, like, mine too." your girlfriend/sister said. "Oh and by the way, when I'm like, in your sister's appearance, just referring to me as 'sis', okay bro?"
"Whatever you say, 'sis'. Plus don't be a bitch like my REAL sister. " you answer you both leans each other and kisses passionately.
"Hey, I can't stay out here any longer, y'know?" the person at the door calls you.
"I think the person on the door is like, waiting for you, bro. Why don't you go answer it while I stay hid in your room?" your shapeshifting girlfriend/sister asks.
"Okay, stay in there while I'm telling you to come out, okay 'sis'?." you reply back as she's running to your room quietly. "Hey, are you still there, I'm coming." you shout as you go to the door and open to see who is it. But first, you have to look at the peep hole.