Flashing Dad

When I was in my late teens and early twenties, my dad and I developed a weird habit of flashing each other. We spent a lot of our time at home is just our underwear or shorts of some sort. Dad was the first to do it, there he sat in his recliner watching TV with his dick hanging out of his boxers' leg. When I told him, he just giggled and left it out. Over the next year or so, this became more frequent, and me being a serious hornball (and totally not shy), I started doing it too.
We never did anything. Most of the time we were limp, though, again being a teen hornball, I let my glorious flagpole free a few times! The only unspoken rule was that we were never allowed to let mom see us with our dicks out together.
I recently lost my dad. And this was one memory I could never share with anyone. I miss him and his big hairy nutsack.