Trying to get advice as to the sex of my tortoises. They relentlessly go after each other and appear to be trying to mate, but I want to make sure they aren’t both males. I have a good friend who wants to give one a new forever home if they are both males. 1st two pics are “Yertle” suspected female 2nd two pics are “Hortney” suspected male My daughter named them when she was 6