My family

I squeak and drop my phone as my mother, father and brother burst through the door, singing happy birthday at full volume, and bringing with them an awe-inspiring homemade birthday cake with a large number of candles burning on top. I count them... there's eighteen.

Ugh, how unoriginal.

I roll my eyes and wait for them to finish their painfully out-of-tune rendition of the classic song.

"You're late." I observe calmly, once the delightful silence returns.

"Ah yes well, it was trickier than expected to get eighteen candles in the cake and lit up all at once." My father says in a gentle, saint-like voice. "Sorry for making you wait."

My brother Steven is less diplomatic. "Just say thank you like a normal person, sis. And it looked like you jumped when we entered, as if we'd caught you in the middle of something. Just what were you doing while you were waiting for us?"

"Nothing." I mumble.

A sudden heat passes through my chest, as it explodes from a modest B cup to a massive F cup, spilling out of my bra and creating lewd amounts of cleavage at the top of my vest.

What the FUCK. It's real oh my God it's real oh my God.

"Mum, dad, Steve, I can explain!" I blurt out.

"Explain what?" Mum asks.

"My chest! It-" is this magic app that's making my breasts grow when I lie! Is what I try to stay, but the words won't come out. Apparently part of the magic is that I'm not allowed to reveal the secrets of the app to others.

My mum chimes in. "Yes, well, I was tempted to say something, but then thought perhaps I'd hold my tongue because it's your birthday. But that really is too much cleavage for a good Christian girl to have on show, even if you are an adult now."

"No, I mean their size!"

"You can't help that you were blessed with such large... 'tracts of land', darling, but you can cover them up."

Oh my god. Everyone's mind has been changed to believe I've had breasts this size all the time. This magic is powerful.

"I don't believe you were doing nothing." My bratty brother says, steering the conversation away from my breasts, a topic I'm sure he finds rather uncomfortable.

Oh, I understand what the rule being reversible means now, I think.

"I was playing a game on my phone." I admit.

My breasts start to shrink, confirming my theory. But they only shrink a tiny bit. I'm probably still an F cup, or maybe a large E cup.

What?! Oh... oh.

"And... tweaking my nipples." I look down at the floor as you say it through gritted teeth. My tits instantly return to their normal size.

"You were... what?!" My father demands, stunned, in a rare shift from his usual gentle demeanour.

"Being completely honest, and thereby teaching my brother a lesson not to pry into what women get up to in private. It's creepy and inappropriate."

My mother backs me up. "She's right, that was an inappropriate question."

"And on my 18th birthday too." I try to sound genuinely hurt. Maybe I can get him in trouble.

"I'm sorry, Dawn." Steven does his best to sound genuinely sorry, even though he isn't and everyone knows it.

"Well, let's leave all that behind us, then. It's time to celebrate Dawn's big day! You're finally a woman grown, my dear." My father has returned to his usual unbearably pleasant self.

Then start treating me like one, you asshole.

"Where are my presents?" I demand. Usually their arms are filled with neatly wrapped gifts, but today there's nothing.

Dad smiles. "For that, you'll have to come downstairs."

The three of them lead the way downstairs. On the way, I check my phone. I have received three silent notifications.

Unpleasant response to birthday cheer
+0.2% Nasty
Trying to get brother in trouble
+0.5% Nasty
Demanding gifts
+0.1% Nasty

Oh Jesus, it's monitoring my behaviour. And the more it deems me nasty, the more difficult it will be to win a round. This app is evil.

I realise I'm already locked in. There's no way I can spend the rest of my life being completely and entirely honest, and if I don't, then my breasts will likely balloon to entirely unreasonable sizes. My only recourse is to continue playing the game until I win and can remove this ridiculous rule and then never open the app again.

Lost in my own thoughts, it takes me a moment to realise that my parents are trying to show me something.

"Ta-da!"

Through the living room window the driveway is visible. Sitting on it is a red car I haven't seen before, with a large ribbon around it, making it look like a present.

Really? Red? For me? When have I ever given the impression that I like red?

Remembering that the app is monitoring me, I change what I'm about to say.

"Wow, for me?" I act as awestruck as I can.

"Nothing less for my Princess!" My father beams. I hide a scowl.

I am not a fudging princess.

"Want to take it for a ride?" My father dangles the keys in front of me.

"Yes please!"

Anything to get away from you for a while.

I snatch the keys out of his hand and head for the front door. He moves to follow.

Oh. He thinks he's coming with me.

"See you later!" I say with an innocent smile, and close the door in his face.

I drive the car one block down and then park up. It's fine, nothing special, but not crap either. I guess I can't complain. I have wheels now. I take out my phone and review the new notifications.

Pleasant response to birthday present
+0.2% Nice
Didn't take dad for a ride
+0.2% Nasty

Oh come on!

It had taken a lot of effort to act so civil with them and make them think I was happy, and I hadn't even earned anything for it.

Screw this, I need to win ASAP, before my Nasty rating goes through the roof.

I open the game and hit the play button.

Game on.

Now that my Nasty rating is 80.8%, I need 8080 points to win. Not too different from before, really. I clear my mind and focus on my matches, smiling wryly to myself as my score climbs.

But it's not fast enough.

In two minutes I have scored 2500 points, which is much better than before but nowhere near where I need to be, which is somewhere closer to 4000. I screw up my face and try extra hard in the second half, but am unable to perform any better. At the moment, 1250 points per minute seems to be my average.

And then, when there's 15 seconds left... that eggplant begins to float by again.

The nipple tweaks!

If I tweak my nipples really really fast, maybe I can earn a few minutes to help bridge the gap between my 5000 points and the 8080 I need. It's worth a shot. I tap the eggplant.

Timer Bonus:
10 seconds per fully naked star jump

Oh god, it's different every time. This time I am given 45 seconds to complete the bonus task, but it's utterly unthinkable. I'm in the middle of my neighbourhood. People who go to my church live all around. There's absolutely no way I can even consider trying to get any fully naked star jumps in.

I watch the 45 second timer tick down with despair.

There's nothing I can do.

Paralysed like a deer in headlights, I sit back and await the game unpausing. As soon as it does I try my best to clear as many gems as possible but it's no use. I finish with a score of 5500, over 2500 points short.

Game Over. Choose a punishment:

Orgasm trigger word: 'Amen'
Short skirts only
Aroused older men casually grope and spank you