Your older sister Katelyn answers the door

I was startled for a moment as the blur of something coming towards me made me jump backwards. I fell back on my butt as the movement grew closer. I held up my arms defensively in anticipation of a coming blow that never came. Instead I felt something soft and fuzzy rubbing against my legs. Looking out I saw that it was just Cinnamon, the neighbors cat, rubbing her furry little head against my legs in affection.

"Aw Cinnamon, Thank god it's only you. You really scared my pants off there girl. I don't know what's going on, but I shouldn't be cowering from just a harmless little kitten."

I said this towards Cinnamon, but mostly just wanted to say something out loud in order to calm my nerves. I started to pet along Cinnamons ears and scratch her back as I let my beating heart calm down. Feeling the softness, and hearing her purring was able to bring me back to my senses real quick. With a few last minute scratches I stood up with more confidence, looking ahead I could already see my front door.

"Alright girl, head on home. I'll play with you and bring you treats tomorrow."

My mind was much lighter now that I wasn't so tense, and I waited a minute as I watched Cinnamon strut off towards the nearby park. With that I headed off, wiping the dirt off of me from the fall as I walked up my driveway towards the house. I felt around for a minute before realizing that I had forgotten my key back at the dorm. Shrugging my shoulders I decided to not worry about it and just knocked on the door.

After knocking on the door I was surprised to hear heavy thumping sounds coming from inside as though someone has stomping their feet or dropping many objects. My face twisted in confusion as the footsteps approached. I don't know why someone would be stepping so hard, but my train of thought was derailed as the footsteps arrived on the other side of the door.

The door opened quickly, like a flash bang and I my vision was suddenly filled with the sight of torn clothes and overflowing breasts. I took a step back and looked again to see that standing in the doorway was my older sister Katelyn. Except she looked completely different than I'd last seen her. The biggest difference was in her height, a few weeks ago she'd been about half a foot shorter than me. Now she towered over me by at least 2 feet. I wasn't short, being 6'1", but she had to be at least 8ft tall.

Her body hadn't just grown in height, all of her other proportions had exploded outward as well. Her breasts were bigger then basketballs as they shook with each movement she made. A torn tee-shirt just barely being stretched over them and her erect nipples poking through the fabric. Her hips and ass had also expanded to be the size of a sofa cushion. With her new height her clothing was ripping and tearing all over the place as it struggled to contain her skin. The old rock band shirt was so stretched and ripped that the logo wasn't even recognizable, and her cleavage poked through the fabric. There was more skin showing then not as the too small stuff was shredded by her sheer proportions. Besides the torn fabric were also numerous slight stains around her nipples and down her crotch like she been leaking.

"Oh my god Ty Ty, I'm so glad your here. It's been so long, and we like so needed you to help us out here."

I could hear Katelyn talking to me, but my brain wasn't quite ready to react to it all. It was still processing the change in my sister from her small self to this Amazonian goddess. Not to mention the change in personality. Katelyn had been a quiet almost goth girl last month, but her current personality was way too chipper and almost ditsy.

Before I could react to her talking something else hit me. A stench of sweat and musk oozed its way out of the house and reached my nose. It wasn't a pleasant scent for sure, but it wasn't quite a bad stench either. It was a bit of a human smell just turned up 5 times.

"Uh, right. It's good to see you to Katy."

I tried to respond to everything despite my brain short-circuiting. My answer being slow and deliberate in order to take everything in and process it all. But before I could say anything more Katelyn reached out and grabbed my hand. Yanking me into her warm and slightly damp embrace as she pulled us both into the house and shut the door.