You see a button that just has question marks. Your first thought is that it must be a random size button. You press it and hope for a surprise, you don’t really mind what size they are as long as they aren’t unbearable. Your chest starts to heat up. You can feel your breasts growing and growing. They aren’t stopping so you wonder if it chose a bigger size for you. At the moment there at least a F-cup yet there still growing. The random button must be broken because there’s no way you could have landed on the biggest size there is available. They still continue to grow, there now a good GG-cup yet still they won’t stop. You look back at your phone and look at the available options. GG-cup is the largest option there is yet they are clearly bigger than that already. You start to panic wether they will never stop growing and you’ll be stuck with the biggest breasts in the world. You start to feel your shirt ripping into tiny pieces.
Your shirt rips of your body leaving you top naked with the biggest breasts in womenkind. The app has to be broken. You press the random button again hoping that it randomise to a smaller size. Instead they just stop growing. The button must have been a stop when you want options. Now your stuck with massive breasts that the largest bra couldn't fit.