I am kinda like Iha. Sometimes it will stay hard as a rock and other times it goes slightly limp. I have noticed that when she is REALLY into it, I will get really hard and be ready for her as soon as she stops me! I have had times when my sinuses are bothering me while I am down there and I will be trying to keep breathing and it will go down. I know that sounds gross, but it happens from time to time! Too many years when I was younger sticking things up my nose, if you know what I mean and I have really bad sinus problems from that. Of course, she can barely blow on it and it will be back to full staft!(pun intended) I love going down on her and will do it at the drop of a hat, but once in a while things will go through my mind while I am down there that will affect my erection. It is usually, is she going to get off, thinking of a different way of doing this or some silly shit that is still about sex! Not thinking about bills or life outside of our bedroom, but just silly shit that might run through my head!! Hope this helps some and yes, it seems to happen to all of us older guys once in a while anyway. Peace, Mark