Updated for volumes 33-35!
password: fapservice
(also included in the download link is a section just for the nipple sightings so far)
I can’t say for sure, but this might be the longest a manga has ever gone before its first nipple sighting. There was also a two-cour TV anime for this series way back in 2007, but like the manga at the time, the anime was non-nude.
