Momo's naivete reminds me a lot of Joyce in David Willis's
Dumbing of Age. Like Joyce, Momo is pushy, moralistic but nonetheless kind-hearted and determined to be walking a righteous path. Like Joyce, Momo has a violent streak and also is enormously sexually repressed (and as at least one friend who is determined to break that).
Is this a trope? Is there a character template that both Willis and Jeph are following (consciously or otherwise) or is this just the sort of character that tends to develop organically when you have a certain objective for them in mind?
Momo hasn't seen Marigold's porn ...
Which is weird because she was Marigold's AnthroPC and I seem to remember a strip where Marigold had to do some software surgery because all the malware on the porn sites had screwed up her registry or something but maybe I'm misremembering one of Pintsize's misadventures.