I have a short story of Isabelle's first time she learns that water makes her grow in the works as we speak. It might involve a snow leopard bikini and a hot tub at a ski resort. There will be images for it as well which should be a bit more up your ally.
In the mean time heres a teaser of the next Just Add Water image. Its currently live for Patreons. Lets just say she had one cup to many of growing
https://www.patreon.com/justaddwater?ty=h
Remember any contribution helps to get more art made faster. Also higher contributors get input and extra rewards!