Boku to Watashi to Mama no Natsu summary: 'I', along with that girl, 'me' and that girl's 'Mama'. An early afternoon in summer on a listless day, the relationship between 'I' and 'Mama' started with the scent of her breasts dewed with sweat. A passionate and erotic story by Tsuyatsuya about love triangle involving both mother and daughter!