Today I'm going to have sex with my girlfriend! I've taken some erection pills and I'm all set! Now all I need is for her to drink this aphrodisiac... ah! What! My sister drank it!? What should I do... My erection won't go away... My girlfriend has fallen asleep... Should I just hold back? No, I can't do it anymore! I want to do it!! I want to cum!! Ah! Let's do it! The effect lasts for 8 hours! Both of us are horny and excited! Our dicks are rock hard! Our pussies are dripping wet! With our reason completely gone, we completely ignore our girlfriend (sister) and go wild with a sweaty creampie piston!