The bulk update request #9753 is pending approval.

remove implication hyper_lips (361) -> thick_lips (13390)
create implication hyper_lips (361) -> huge_lips (424)
create implication huge_lips (424) -> thick_lips (13390)
remove implication hyper_nipples (3360) -> nipples (1291858)
create implication hyper_nipples (3360) -> huge_nipples (11797)
create implication hyper_navel (91) -> hyper (176572)
create implication hyper_navel (91) -> huge_navel (31)
create implication huge_navel (31) -> big_navel (116)
create implication big_navel (116) -> navel (457857)

Reason: For body part sizes, the typical implication structure is as follows:
hyper_x -> hyper
hyper_x -> huge_x
huge_x -> big_x
big_x -> x
with some variations of this structure depending on the body part.
This is currently not the case for the extant lip, nipple, and navel size tags. These proposed changes bring these in line with what is established, like for example the breast and thigh size implications.
This is my first BUR, so if I made a mistake, please say so.