Itsu made mo Musuko no Mama ja Irarenai! 5 ~Kyonyuu Ottori Mama no Attaka Oppai ni Tsutsumare nagara Amaetai!~

Koshimizu Sou lives with his widowed mother Sanae. Sou is incredibly short, far too short for a boy of his age so his mother agrees to help him do exercises and stretches to help his body grow. Doing stretches with his mother makes him incredibly excited and he can