Saki Ninomiya, an older sister who travels all over the world, has returned home for the first time in seven years. The brothers are happy to be reunited with their older sister, and they peek at her naked body, wanting to see how beautiful she has become. Noticing their desires, Saki reverse rapes them in the night in erotic underwear. She provokes them with a showy spread-legged masturbation, and simultaneously attacks two dicks with a double footjob and a double assjob, and then makes them cum continuously with a superb double blowjob! She has a passionate incestuous sex with her eldest son, climaxing three times! The second son is made to cum with a slutty cowgirl position, and the erotic older sister receives all of his family's semen in her mouth!