[NTR] Even though she's so cute it's sinful, I still have to seduce her! My girlfriend's older sister (big breasts) drools and kisses me deeply, while my younger sister doesn't notice and we have intense sex secretly. Shiina Kokoro FOCS-235

Invited to meet my girlfriend, whom I casually chatted up, I unexpectedly reunited with my former classmate, the busty beauty Xiaochun (the older sister)! Xiaochun flaunts her charms when her sister isn't looking, and after her sister leaves, she seduces her with a deep, lewd kiss…!? Even during intimate kisses, including penetration, Xiaochun allows for seductive sex!