Doujinshi with title Toiu wake de Kaa-san to Kyou mo Bed no Uede, Hada o Awaseru Omo ni Hageshiku and alternative title For this Reason I'm Going to be Grinding Intensively Skin-to-Skin Against my Mom Again Today in Bed | というわけで母さんと今日もベッドの上で、肌を合わせる主に激しく