Can anyone tell me what they are doing? Seriously, I don't know. They stayed joined at the mouth like this and didn't move for about 5 minutes. I even poked them with my finger and they didn't move... didn't even bat an eyeball. Then they separated, circled around each other slowly and assumed this position again. Fighting? Courting? Mating? Although I'm fairly certain mating happens at the other end. What the heck is going on here? Please leave me a comment if you know.