I have this thing about backrubs. It's not so much a fetish as an all-consuming lifetime obsession. Part of it is that I've spent the last five years in jobs that involve lifting, pushing, and dragging people who often weigh more than I do, so my back muscles are big and frequently sore. And part of it is some deep-rooted psychological association of backrubs with affection.
Rowdy gives a mean backrub.
If you're picturing some gentle circular stroking, that's not it at all. Picture this instead: him grinding his fists and elbows into my back hard, tenderizing my muscles into submission, making me groan loudly with pain and pleasure. My hands, sometimes, stroking or just holding his cock as he rubs my back, feeling how it makes him hard. And him whispering in my ear "this part is going to hurt--it has to hurt, and I know you can take it..."
And me just helpless beneath him.