At the Adult Treasure Expo we received a TON of free goods from all over the place. Lubes, free "phone time", photobooks, DVDs...and a package of pre-cooked rice.
Called Jukujo Rice (basically means "MILF rice"), the label says that it's for adults only and is komai (古米), meaning "old rice". They aren't joking either.
I've seen these at the adult shops around Tokyo, but I always assumed there was something inside that made it unsuitable for minors...but it's just rice! Old rice at that, which also explains the slogan on the package: 今が食べ頃 (ima ga tabekoro) meaning ...
