``I was supposed to have fun with her... 'My girlfriend's older sister accidentally drinks a drink containing an aphrodisiac and things suddenly unfold! The birth of a crazy slut monster! She seduces me by taking advantage of her absence! I mean, she's a slut! She resists in vain and is forced to take off her clothes and is inserted as is! I realized the effects of the aphrodisiac when I saw a lady who showed no sign of stopping no matter how many times I fucked her! Wake up and wake up in the morning with an older sister who doesn't feel tired.