first introduced to my boyfriend's sister, i found myself drawn to her. as we sat in the kotatsu, she approached me. stealing glances from my boyfriend, she secretly applied aphrodisiac to her fingers and began to masturbate me. my body reacted strangely, and despite my initial reluctance, i found myself climaxing repeatedly. craving more pleasure, i begged for more aphrodisiac. my rationality shattered, i became consumed by lesbian ecstasy that i could never experience with my boyfriend.