Katherine's sister noticed the changes immediately! She started to shrink and lose her teenage features. As this was happening though Katherine started to get bigger. She started to get strong firm legs and she burst out of her diaper. Katherine's/Jeffs intelligence started to regain itself she started to develop a teenage pussy and her breasts started to fill out, and really fill out. When they stopped she had at least double D breasts. However that was the beginning of her problems looking around she noticed her sister was shrinking at a phenomenal rate and become more infant by the second. "help me sis", "I didn't mfn hfkn muo waa waaaa" Katherine's sister had lost the ability to form words. All of a sudden Katherine felt very strange from the pit of her belly. She felt as if something was moving inside of her? She noticed that her pussy started to feel very wet and all of a sudden a long tentacle thing suddenly burst from of of her and raced towards her sister. It then attached itself to her navel and then horror dawned on Katherine's sister. The tentacle was really an umbilical cord and it started to retact pulling her foetus like sister with it and then it pulled back into her pussy taking her sister with it. Katherine felt discomfort as her sister was pulled up through her vagina and then relocated in her womb. She looked down and noticed that she was now swelling up she was now heavily pregnant with her own sister and to make matters worse her breTs started to swell up as her milk came in all at once. "Oh my god this cannot be happening" Katherine said as her pregnancy started to slow down. At that instant her mother walked through the door and took one look at the heavily pregnant naked teenager standing in front of her at which Katherine replied by saying "err hi mum" at which point her water broke.