Very small now

Chrissy and Jess heard Jess's sister make the wish but were powerless to stop it. They tried yelling at her to stop but she just ignored them and slammed the door. They both tried to run toward the door but were soon too small to run on the carpet, which was now a jungle to them. Then suddenly they were in a very large house. Their proportion, but large to them. Chrissy was still a foot shorter than Jess, at least proportionately but otherwise, they seemed to be normal size. Of course, they both knew better. Looking out the windows, they saw a large yellow wall.
"Where are we and how small are we?" Jess asked
"I don't know. I don't think I want to know" Chrissy said, thinking how small ants were.
Just then Chrissy noticed a computer in the house. It seemed to be working too. She went to use it and realized it was tied to cameras all around the house. Zooming out she realize that the large yellow wall they had seen was a pencil. The pencil towered over their house. She activated the camera aimed at the door when she heard their sisters come in.
"Ok, midgets let's... huh? where'd they go? And what happened to their house?" she wondered while looking around. Just then she spotted something. On her desk was a small spot cleared out. Written on the spot was the word, "TWERPS" with an arrows pointing to a house that was so small it was almost invisible. "Oh my God!" she exclaimed as she bent down to get a closer look.