Let’s see…
We have breastfeeding followed by Boobs in Space with animals floating along with the titties in an animated song from Japan’s public broadcaster, NHK, in their program, “Songs for everyone” for kids. This show provides two songs a day in the early evening.
This a song about Mom’s tits and how they are full until the baby drains them them, and then the boy singing (six years or so) tries to drain them and little sister tries draining them too, etc. The public-service-message is that Mom needs another baby.