Hungry?

[rebbonk]

Wee boy sat on the bus with his ma. A fairly big lassie with a baby sits opposite them and proceeds to haul out a massive breast and starts casually breast-feeding the wee one.

The little boy whispers to his mother 'Mum, what's that lady doing?'

His ma says 'She's feeding her baby son.'

The boy replied 'Away,

Spoiler:

he'll never manage to eat all that!'