She noticed that she could try to use the doggie door to get in.
From Create Your Own Story
Amy looks down at the door and sees the doggie door. She thinks it’s a long shot, but it’s possible that she might fit through it.
“Hm...The doggie door might work. It’s not much, but it’ll have to do.” Amy said as she goes on all fours and gets ready to crawl in it. She managed to get her hands through it, then her head.
“This is so embarrassing.....” Amy said, feeling embarrassed crawling through the doggie door, like a dog. She then gets her small boobies through, then her chubby belly, which was a little more tricky. Things were going great, but then just as she thought she was gonna get all the way through.....
