My 670g 1 1/2 year old male lesser is like half opening his vent when exploring outside of his cage. Like, he opens it but nothing comes out and it is a little red. I do usually have him and my 1600g female butter out together but they are caged separately and he shows no interest in her. He did pee yesterday when he was out but nothing today and nothing before that.
Edit: I just checked again and one hemipene was about half out but he still shows no interest in my female and is, in fact, going the opposite direction she is in