Suddenly your sister gets pulled upwards. She doesn't even have time to scream before half her body is gone. You're too shocked to do anything, and after a few seconds, she's gone.
You hear a muffled thud from outside, followed by a groan from your sister. It seems she's been regurgitated.
"Are you okay?" You yell hoping she can hear you.
"I think so!" She replies.
After a few seconds you feel a light pressure on your side. You realize it's your sister pressing in so you push out at the same spot.
"Do you think she'll let you out too?" She asks.
Before you can reply the stomach rumbles again.