FALENOstar exclusive, Nikaido Yume-chan plays a devilish little sister! Worried about her seminar assignments, Yume-chan asks her sister's boyfriend to be her tutor. While studying, she shows off her cleavage, licks her nipples and gives a handjob to make her cum! The temptation doesn't stop, and while her sister is sleeping, she has a silent cowgirl position while trying to hold back her voice and has a spasmodic orgasm. In the end, she barges in on her sister's sex and fucks her hard with an NTR fuck! ?