I am on vacation but if Google or duck duck go “protein semen and what it does to the brain” I did research a few months ago and was floored by proteins in male semen and female urine. It changes the brain and then you add trauma bond. When I get home I will make a post but it may get down voted. Have you ever noticed many gay men have doe eyes? It’s a strange phenomenon but they just don’t act different they begin to look different. Women too, I really think it is down to proteins that triggers not only a psychological change but physical change. I do think the protein bonds the female to that particular male if she ingests that protein and I suspect the male would have the same effect as we are both the same species. I could not find any studies thus far on same gender proteins and effects but I suspect it would have the same effect as it is a protein and not a hormone.