Ate?

For weeks a 6 year old kept telling his teacher about the baby brother or sister that was expected at his house.
One day the mother allowed the boy to feel the movements of the unborn child. This 6 year old boy was clearly impressed, but didn’t say anything. Furthermore, he stopped telling his teacher about the upcoming birth.
The teacher finally sat the boy on her lap and said: “Zaini, what has become of that baby brother or sister that you were expecting at home?”
Zaini burst into tears and confessed: “I think mommy ate it!”