I have thought about this for so long xD

How much blood do you think you would have to have for big cocks (and balls) like that and their heart must be dying for a break when they get hard. It just makes me wonder how much blood they would have to have even in order to keep it up and don't get me wrong, I love hyper furs just it's kinda funny how ridiculously big they can get and have a full erection without even a problem. x3