A beautiful sister and her virgin brother compete against each other in a game of baseball wrestling, with a high stake prize! Despite saying he isn't excited by his sister, the brother becomes visibly aroused when seeing her naked, causing his dick to become rock hard. Meanwhile, the sister also gets turned on by her brother's huge cock, blushing profusely. Their rationality flies out the window as they engage in passionate, close-up incestuous intercourse. The sister begs for more after experiencing multiple orgasms and being creampied twice by her brother during their intense lovemaking session. This taboo erotic memory day ends with them crossing boundaries while still maintaining an air of secrecy. Note that recording contents may vary depending on the broadcast method used.