DOHI-059 A slutty little sister who cuckolds her older sister's boyfriend! The older sister and younger sister come across the scene of her boyfriend getting fucked and start fighting over his dick! Even after ejaculation, the nonstop sex doesn't end until he cums inside all of the sisters' pussies!

A lewd younger sister who cuckolds her older sister's boyfriend, and an older sister who has her boyfriend cuckolded by her younger sister, compete in technique! An uncontrollable YAGURERA (a term coined from the incident involving a certain former idol) NTR nonstop SEX scene! "Hey! Who's better, me or my sister?" A creampie sex battle between a serious older sister and a promiscuous younger sister, with pride at stake! The NTR rampage begins, no matter how many times you cum in the sisters' pussies!