Yeah it is a bit much. I think traditionally, "dear" has been reserved for what a male nurse at a retirement center would call a woman under his care. The retirement community scenes from Happy Gilmore come to mind.

Also, on the flip side-- There's the, "dad calling his daughter dear" aspect of the thing and as much as I love Serge Gainsbourg's seminal record, "Histoire de Melody Nelson" I need to stay away from the ageplay scene. Underground adult diaper distribution freaks me out man.