Personally speaking, I raised the subject with my wife a few months into our marriage seventeen years ago. Not only did she not like the idea of spanking me, she was absolutely aghast and horrified. So much so, that the subject has never raised its ugly (in her opinion) head again.
The strange thing is, she was always landing single, playful slaps on my backside and it was this that encouraged me to try and take things a bit further.
I'll never forget the look on her face, nor my feelings of, not only being unusual and twistedly different, but also of being less than a man and someone who should be completely ashamed.
Therefore, like many others, I live a double life and my kink and marriage will never combine.
We are both well into our 50's, so it may be a generation thing.
Thanks to the internet and fantastic sites like this I slowly began to realise that I wasn't alone and that there were quite a few others like me.
It certainly appears to be far less frowned upon now than it used to be, and contemporary women are more open to the idea of smacking their male counterparts nether regions.