Men already have the components necessary for lactation, but they are underdeveloped, and women can breastfeed a baby while being completely flat-second hand experience with my aunt-since the factor for breast size is the fatty tissue not the mammary glands. Therefore the men are not going to be that different.
I intend to make the women able to control what nutrients to give the baby from her own body, amd the milk from the father is directly goes to the baby.
When babies suck a nipple, their saliva send signals to the mother about their needs. Can i make the placenta send signals of what the baby needs, and when the woman suckle, the father's milk is adjusted accordingly? Like if the baby need iron and calcium, instead of taking it all from the mother, it also takes it from the milk by sending the signals, and the load is divided between the mother and father.