"And then, I blew up the candles on the cake as I wish to be any kind of girls you think of and nobody what happened, so now this is what happened, that's why I got turn into and have sex with you." she answers as you still don't believe what she's said.
"That's ridiculous, do you think I would believe that?" you asks the strange girl that you still think she pretends to be your girlfriend. "Look, lady I don't what you're talking about, but whatever you say, you got any proof to me that you're my girlfriend?"
"Okay then, if you still don't believe what I said, then have a look at your phone and see some images of me and you, you know what I am talking about." she replies as she told you to look at your phone. As you look at your phone and see the images of you and your girlfriend taking pictures together, and you shocked to see that the girl in the picture wasn't your girlfriend but the same strange girl in your bed the whole time. And to be sure, you look around your room and see the picture right next to you that the same strange girl. Could it be what she told was true, is she really your girlfriend? "So what you're saying that you really are my girlfriend?" you asks to the girl to be sure.
"Of course, hun. Why would I lie to you about this?" the strange girl replies back to you as she's really is your girlfriend.
"B...but how, this... this can't be happening, how is this possible?" you're getting panic as you can't believe is true.
"Look, I know you're panic and still don't believe it, but if you think of me as someone else, you will see what happens." your transformed girlfriend explains again and tell you to think of any girl in your head. And then, you think of...