![2girls alternate_costume bare_shoulders blush blush_stickers bow breast_rest breasts breasts_on_head brown_hair hair_bow happy highres hug kokuu_haruto large_breasts long_hair mother_and_daughter motherly multiple_girls non-web_source off-shoulder_sweater off_shoulder open_mouth red_eyes reiuji_utsuho smile sweater touhou wings rating:s score:12 post #1497633](/cdn_image/preview/73/bd/73bd0a9673e45fb08c3d67dfd88345b7.jpg)
Second doujin detailing Okuu and her daughter as done by various artists.
The title is based on the Japanese fan term for milf Utsuho, 良妻空母 (ryousai kuubo), punning ryousai kenbo (良妻賢母, "good wife and wise mother") and kuubo (made off her name, Reiuji Utsuho 霊烏路 空 and "mother" 母). More info (in Japanese) at Pixipedia.