"And then, I blew up the candles on the cake as I wish I wanted to satisfy my boyfriend's fantasy come true." she answers as you do remember that your girlfriend did make a wish when she blows off the candles, but how come she knows about that and also you don't remember her in your girlfriend's birthday party. Plus, there's no way this lady is actually your loving girlfriend.
"Yeah, come to think of it, I do remember my girlfriend make a wish like that, but how do you know about her wish?" You ask the strange girl again.
"Geez, you're such a big goof balls. I try to tell you that I'm your girlfriend and about last night, but then you're being silly again. God, I bet bet you and your boys had too much drink last night and forgot everything." You slowly unwound and stood up. 'Big goof balls' was a common phrase your girlfriend can use towards you. Could this be that she REALLY is your girlfriend? How is that possible? Your girlfriend can't be... Wait the minute, you just realized your girlfriend did make a wish about satisfying your fantasy on her birthday. And then, the wish just magically turned herself into this busty girl. Well, that explains a lot. "Honey, are you sure you're okay? You act so strange toward me." The busty girl who is actually your girlfriend says with her worry tone.
"Y... yeah, I'm fine. Now, come to think, you're kinda right that I drank too much last night. Plus, my head is killing me and tired a lot. Also, I'm sorry that I'm being rude to you in the morning, babe." You apologize to your transformed girlfriend.
"Hey, it's okay, hun. I know what you're trying to say. Plus, you shouldn't have drunk so much alcohol it's bad for you." she replies as she accepts your apology, plus she's still lectures you like your mom. "Anyway, now that you and I are up, why don't we get out our bed and head to the bathroom together? Then, we'll figure out what we do for today."
"Okay, babe. Sound like a plan," you agree with her as you both get up with your naked bodies and head to the bathroom. With that, you and your girlfriend in her current appearance brush the teeth and take a shower to refresh yourselves. But come to think of it, when your girlfriend becomes a busty woman, she isn't aware that she's now a different woman, plus she feels like completely normal. Probably, this is also affecting reality, too.
After both of you are finally done, you and your transformed girlfriend head to the kitchen as she makes some breakfast. You sit on the table while watching your girlfriend's cooking, you thought that how your girlfriend changed this busty girl. Plus, it's hard to tell, but that's your girlfriend's wish. But if she wished she wanted to satisfy your fantasy, that means your girlfriend has into this girl you fantasize about. What if she turns into someone else, you then thought about...