I'm late 40s and I have recently started being open to trying new things in the bedroom with my DH. Until recently I had only ever had sex with him being on top. It was getting a bit humdrum. We have been trying DTD with him behind me - or doggy as it's more commonly known, though I must say I find the word a bit daft when used to describe sex between humans. I have been asking him to slap my bum while we are having sex in that position, and I have found it to be a surprisingly big turn-on. It certainly seems to turn him on as well. I am curious if this would be classed as kinky by most or is it just a normal sexual thing.