Not really a sissy, but I was always or as often as I could and seasons permitted it, naked in front of the family. Even later after I had so to speak "grown up", and was married and had a family of my own. If there was only Dad, Mum and me, and it was possible, then I was naked. I also often sported a fully erect penis, which my Mum always liked to look at and openly said how much she enjoyed seeing me like this.
When my Dad had passed away and my Mum lived for almost a further 20 years, we visited her often with our 3 little boys and both my wife and I were naked and the boys just loved going to grannies house as they could run around and play and be boisterous also without any clothes on.