Jiminy, cannot you recognize the behavioral influences there? That "certain" "mothers" "have" whatever behavioral type children in whatever type combinations?
Human behavior is a complex thing. There's learning even in the womb, and yet we aren't supposed to acknowledge THAT, either, because that would mean that people who abort fetuses are engaged in murder.
"Hyper femininity" occurs when children are encouraged and instructed to behave that way. Or, they have some mental issues influencing them that remain undiagnosed because they are deemed socially acceptable (overt sexuality to some is not deemed abnormal, obsessive-compulsiveness, narcissism, many of these disorders can create hyper sexuality, as can schizophrenia for that matter).
And that encouragement changes their breast size and body scent as well as their behavior?
So9