Practice Makes Perfect (Pixiv Fanbox)

Louisa allows Charon to get in some practice to avoid any awkward and inadequate performance for when she finds a significant other. Telling her not to worry about such things while so young, Charon is insistent and grown doting like her mother, Louisa relents. Not long in did Louisa come to find the girl was showing perhaps a bit too much enthusiasm and always asking "Is it good?"