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// In for a penny? 
// Story: Pony Jokes for Brony Folks. 
// by Firebirdbtops 
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	Mrs. Cup Cake was getting worried. This was not a new sensation for her, as living with Pinkie Pie gave a pony lots to worry about on a day to day basis. However, this worry did not concern her wild tenant, nor did it fall under the category of worries related to her surprisingly lucrative business. This worry was centered on the most important part of her life, barring her husband. Her two foals, Pound and Pumpkin Cake, were sick. At least, she thought they were sick. Not much else could explain what they were going through. She and Carrot had been sure that the twins were being well nourished, and she had personally brought them to each one of their immunization check-ups. Both of them were lively and energetic to be sure, but when she saw what was on the bathroom floor she decided, then and there, to bring her darling children over to the pediatrician, Dr. Muffintop.  A brisk trot with her foals in their side saddles later, she arrived at the doctor's office. The receptionist told her that the doctor would be with her in a moment, as he had just finished the Hooves child's exam, and he needed to recover from having the mother nearly biting his head off when she found out about her bill.  Soon enough, the doctor came in and asked Cup what the problem was, other than the large missing portion of his orange mane. She explained to him that, despite all they had fed the twins, and having gone through the normal growth spurts for their age, the children were severely underweight. The doctor poked and prodded the foals, measured and took their blood pressure, and all tests came back normal, but when they were put upon his scale, he finally saw the problem for what it was. Turning over towards the distraught mother, he explained. " I'm sorry Mrs. Cake, but no matter how old the twins get, I am afraid their weight will remain the same. You see, there are two twins, but only one pound."