My male is 6 months old, but for the past few months i have already been noticing this. His lipstick sticks out for reasons that I dont know. I've seen it come out when he wakes up, morningwood heh heh. And while I'm playing with him outside in the yard it comes out too. I dont have any female dogs in the house in heat. So what exactly causes his wee wee to stick out? Excitement? Boredom? Some sort of mechanism for heat dissipation?