baby in my tummy

Vivian is holding the Willy Wonka DVD case, and putting it under her shirt. She then announces, "I have a baby in my tummy" and instructs her sister to "get the knife". Sophie then announces, "I'm putting the needle in your back, and shhhhhhk, OK! I've got your baby out, ma'am." Now they are spinning on an office chair, and Sophie is asking if the baby is crying from spinning too fast (Vivian is now holding the DVD case in her hand).