I've always loved giving oral sex to my wife and have wanted to include kissing and licking her anus for as long as I can remember. She's not into it for perfectly understandable reasons - and I'm sure many people will agree with her - yet it continues to hold enormous erotic, sensual appeal for me.
I totally accept that it will never feature in our lovemaking and there's no problem there - it's really not the be all and end all. But am I a bit odd or unusual to want to do this and to find the idea so erotic?