We will be retiring the FAKKU Books Founder achievement on September 10th! For all the details read this thread.

    Oppai

    Oppai (おっぱい) is the Japanese slang word for breasts, generally used to refer to the larger variety. Naturally large breasts are somewhat rare in Japan, but in hentai they are quite frequent. Hentai manga and doujinshi with the tag 'oppai' will involve characters with large breasts, but not excessively large (bakunyuu).