Not unusual to have wives hooking, more often higher class than streetwalking, usually escrot/callgirl type stuff. They like the thrill of the sex and they feel like the money is theirs to use as they want. Limit the number of clients they serve so it's more like play than work.
My cousin has been out of the business for awhile but he used to have a stable of suburban soccer mom types who were available. Most clients were from out of town, mostly black businessmen.