Cait - sweet cream bovum sherry to get fatter tits.
Ryn - purple eggs and juicy peach for thick thighs, wild melon and bovum sherry for bigger tits. (2-3 times for DD which is max for her).
Arona - sweet cream bovum sherry for milky tits.
Need to be pregnant yourself. She does it only under the pretense that it will divide the maternal duty between the two of you when it comes nursing the children.