18+ anime/hentai conventions in the USA?

There one called Hentai Festival inside Anime Expo back in 2014 and 2015. It was also advertised as Hentai-Con. Dunno how much this'll help ya but these are my findings.

I think there was a 2016, too. Sadly a lot of these things are hidden with bigger conventions. One other instance I can find with very little searching was from A-kon in Texas back in 2009.

wtf theres such a thing? i know comiket in japan has a ero doujinshi section

I remember Sakura-Con having a small hentai section for movies/series and body pillows last year...but that's all I remember from there.

There is no age restriction for Anime Punch, but it is marketed more of a college age con, and most of the people there are around that age group.

Unfortunately I'm stuck in the middle of nowhere. A place where conventions start, and then eventually leave for bigger cities. The only one that's currently here, is advertised as "family friendly" (boring after a while) If anyone finds a more adult rated con, please let me know. I'd probably have to drive half-way across the country though. V_V

I've been to plenty of cons with 18+ programming and panels, but never one specifically dedicated to adult material/hentai.