Dragon Ball - Kid Goku and Caulifla

Cute look for DB Caulifla. Though I don't think she'd emulate Chi-Chi. Most likely she'd just become a friendly and more aggressive training rival until one day when they're older she bursts into his home.

"Hey, I heard about a special training girls and boys can do! Let's try it!"

Then after that, the inevitable happens. "You did this!! You made me fat!!"

And of course, she'll now want to stick close to Goku because obviously two strong parents will raise an even stronger baby. And with Caulifla being into training as well, she'll probably be able to balance that and parenting much better and reign Goku in to be a proper dad.

in this version she is yamcha's adoptive sister but she is still saiyan and a bandit