Grrl Power VIII: Hotter Than What's In Sydney's Lunchbox

[Grendelkin]

The 'rock' may have been more in the ways of an egg or a protective shell. Iirc, the 'science juice' is a symbiote that decided it liked the cut of Max's jib - and also her late-blooming metagenes - or at least found them appealing enough, and hitched itself to her wagon.