>>2230153I was always under the impression that "symmetrical" referred to comparable breast size, and the term "asymmetrical" referred to docking where one girl's breasts were significantly smaller than the other girl's, e.g. this classic image in pic related, and that lack of docking (i.e. only one breast) went under the more general category of "breast press." However, there are many posts on Gelbooru (some quite old) that use "asymmetrical docking" to refer to any kind of breast press or docking misalignment so maybe I'm more of a language purist than most
