I especially enjoyed the description of the narrator (Bob) standing in front of his wife (Carol) with "eyes downcast and blushing furiously" at being naked from the waist down while she was fully dressed and about to put him over her knee.
Nudity (or semi-nudity) for spanking purposes can engender different reactions from those evinced on other more 'natural' occasions, can't it?
I hope there will be a sequel detailing Gail's birthday--notably if she requests a paddle, strap or crop as a present from Bob. "We should try this out right away, shouldn't we, Bob honey? Just step out of those trousers and briefs, please..."

--C.K.