Thank you. Coming from you, Hermes, that means the world to me. Yes, and coyotes, who only have one sperm and are connected to one another for about 30 minutes after each copulation act. Vasopressin also plays a huge role in the males alongside oxytocin. You're absolutely correct, here. I covered it on Substack here at length here along with the genes liked to non/monogamy:

https://thescienceofsex.substack.com/p/how-our-genes-influence-our-desire

Here's a paper to check out if you haven't seen it that might be right up your alley:

https://www.ncbi.nlm.nih.gov/books/NBK97287/