From the moment I laid eyes on her, her older sister, Yuuka, exuded an aura of a captivating woman. Yuuka, who said she found my looks appealing, started seducing me the moment her girlfriend looked away. She gazed at me with glazed eyes, thrusting her long tongue in, pouring her saliva generously into my body. Yuuka's moist lips felt like a living creature, clinging, pulling me in, consuming both my body and mind. The longer we could keep it a secret from her girlfriend, the more intense her forbidden tongue kisses became, leaving me utterly drained and unable to resist...