Responses
I think it might be http://www.mangago.zone/read-manga/seishun_kinema/
not quite the one but thanks either way ╮(￣▽￣)╭
Check this tag, maybe? http://www.mangago.zone/tag/inverted%20nipples/
There was a yaoi I read where the bottom had inverted nipples and the top told him he could fix it by sucking on them. They went back so the bottom kept on them as "treatment".
Any ideas?
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