She's an adorable vestigial behavior. Get it, because all fetuses start out female and become the superior male. hah

Uh, not really. Fetuses start out as both male and female with both ovaries and testes, and then usually reabsorb the un-required hardware later.

Yeah, i understand the somewhat pedantic technicalities, and also chromosones indicate the blueprints for differences that will occur over the course of that fetus-person's life. I suppose I am overly favoring the hormonal introduction of testosterone and DHT to develop male characteristics. Without which the penis would not form, breasts would develop, as well as other features, as it requires uniquely male hormones to stop feminine feature development, as it seems is the automatic course without such hormones.