So not long ago , we rescued another guinea , we were told it was a boar so after a while we introduced him to our 2 brothers , he was only 4 weeks so they just took him in as their own. They did not fight , it didnt cause trouble and it was brilliant. Them they started humping him which I know was normal , but it seemed a lot so we looked at his genitalia and though it didn't look like the boys so we called the guy and found it to be a sow! Well he was still unsure as he said it looks like a small skin tag . Anyway we are confused as the boys never fought over her if it was a girl , we think they are laid back , either that or the pecking order has been decided and the other brother just doesn't try it with him. But either way we are still confused , I will just upload photos now as my phone is not letting me. Please feel free to give your opinions .