So my 6 year old niece was talking about how we can tell if the baby is a boy or a girl and I told her that we will have an ultrasound and they will be able to look at the baby's privates and see if it's a boy or a girl. Then she said I'd have to wait until it can talk and see if it has a deep voice or a voice like hers to tell. I explained the ultrasound again and my mom interjected that they would look to see if the baby has a penis or not. My niece said "what's a penis? It sounds like a peanut."