It's not folk but Victoria Wood's "Let's do it" (an eager wife and reluctant husband song) has quite a few including her: "beat me on the bottom with the Women's Weekly*" and his: "I'd rather read a catalogue on vinyl flooring" among others. I don't like most of her songs, I prefer her sketches and plays, but this one ( and NO I don't have the full lyrics, about five minutes long)always tickles my funny bone.
RtS (where did I put that catalogue..?) [*A very staid UK home hints and love story magazine.]