Since his only family is his sister, the brother, after having sex with another woman and feeling incredibly good, decides he wants his sister to experience that same happiness. He attacks his sister, who's shut herself in and only plays games, forcefully penetrating her throat and relentlessly teasing her until she cums. Despite resisting, she's unable to withstand her brother's powerful rape and is creampied multiple times, the semen flowing back up, until she genuinely feels happy...