With my kids gone, I have gotten more bold, i will wear diapers to bed, Sometimes my wife will notice even in our Queen bed and cower to the other side so she doesn't touch me or the diaper i wear. But we do not discuss it, though i would like to. I just roll over and sleep like a baby. At least she does not confront or demand i stop wearing diapers. For decades I expected I would grow out of my desires, but now realize i will take them to the grave. Just the way I am.
It's just make believe....darn it.