230OREH-004 Mitsuki (24)

A pair of siblings are caught while shopping. (Brother: Harunobu, 21 years old, student) The sister works in the apparel industry. Under the pretense of confirming sibling bonding, they start with favorite foods and gradually escalate to questions like 'Do you have a boyfriend?' 'Have you kissed someone?' 'Have you masturbated?' etc. For the pair that seems game for it, they are led into having quasi-sex. The brother is shaken by his sister's admission of having a boyfriend. Apparently, he has a 'sister complex' and sees his sister as a romantic interest. The caring sister leads her stammering brother, not stopping at quasi-sex but going all the way to ejaculation inside!