Redsand Canyon Cyberiad theory.

Alivia was annoyed too now: annoyed with the shifting that happened when Towhee leaned to pick up her brother, and doubly annoyed with the appearance of the mewling, thrashing Nealy at her previously-private milk bar. 

With the tiniest little huff, shifted down one nipple, reluctantly creating space for her sibling's ridiculous antics. She continued to feed greedily, desperate to take in as much sustenance as possible before Nealy steamrolled over her, or her other siblings somehow managed to ruin this rare treat with their nonstop drama.