What is small oppai? Well to put it simply, it’s a Japanese term that refers to girls with little breasts. This can apply to anything from lolicon to flat chested MILFs. As long as a girl has less than a handful of titty to grab, they’re considered to be small oppai. So if you have a fetish for young looking flat chested girls, this free hentai gallery will undoubtedly drive you crazy. There is nothing x-rated to see here though, all these images are softcore and cute ecchi style hentai.