>>720975012
Your main problem here is your trying to apply real world logistics/phsyics to pure fantasy, it's a nonsensical waste of time. You probably have autism.

But, humouring your autism, the answer to this in reality is gynoids. All your issues are solved, a fairy or giant sized gynoid could theoretically exist and of course would not need to eat and would not die from penetration. You'd basically have flying onaholes or giant walking onaholes.