Suddenly, I gained a stepsister and a stepsister's ex. An ugly man suddenly gained a stepsister and two stepsisters, both of whom had brotherly feelings for him, and he could ejaculate inside them at will. (Azuki Azumi, Minazuki Hikari, RKI-708)

After his parents remarried, two beautiful stepsisters suddenly appeared. Just as he was beginning to open up, his stepsister, Natsumi, caught him masturbating and ejaculating profusely. He thought his life was over… but it turns out the sisters are born with a brother complex!? They take turns servicing each other's penises, embarking on a dreamlike life! He's also okay with ejaculating while his sister, who likes him, is asleep, and having sex with his older sister after receiving her virginity! He lives under the same roof with the beautiful sisters and has 3P every day! He can come home and enjoy irresponsible ejaculation from the two of them waiting for him! [How wonderful it would be to have sisters like these!] The ultimate wish-fulfilling work!