My "girlfriend's Sister" Mistakenly Ingested An Aphrodisiac She Was Supposed To Give Me And Seduced Me Into A Kimekusek Nakadashi! Riho Fujimori

"I was supposed to enjoy with my girlfriend..." My girlfriend's older sister accidentally drinks a drink containing an aphrodisiac and things take a sudden turn! A crazy pervert monster is born! She aims when my girlfriend is away and seduces me! Rather, she molests me! I resist in vain, but she forcibly strips me and inserts it in! Seeing that my older sister has no sign of calming down no matter how many times I do it, I realize the effect of the aphrodisiac! Awakened and tireless, I have endless creampies with my older sister from morning till night! I even get high from the mysterious fluid her body releases trying to expel the aphrodisiac!