My Plain, Glasses-Wearing Sister-in-Law Has Such Huge Breasts I Can’t Stop: A Forbidden Life of Living Together Konatsu Kashiwagi

Description

After his father remarried, the protagonist suddenly gained a stepsister. At first, he wasn’t interested in her—with her plain, bespectacled appearance and shy, introverted personality—and went about his daily life without paying her any mind. One day, however, he decided to try to get to know her a little better and went to her room, only to catch her masturbating. He was completely transfixed by her beautiful, large breasts—something he never would have imagined from her plain, bespectacled appearance! He entered the room, used the toy she had been using to help her masturbate, and was wildly aroused by how incredibly erotic she looked. He had her give him a blowjob right then and there, then thrust his rock-hard cock into her and did a Creampie. Realizing just how cute his stepsister was, he took her back to his room and did a Creampie again. Finally, when his stepfather suddenly returned home, they all joined in for an unconventional threesome, fully indulging in their forbidden life together!!