「これ本当に効くの？ 私、全然平気だし…」媚薬を入手した女子が興味本位で回し飲み。「効いた方が負け」という謎のプライドで、全員が平気なフリを続けるが…体は正直だった。アソコは次第に濡れ始め愛液が止まらず、密かに自慰を始め、隣の太ももに手を這わせ隣の友達を襲う異常事態へ。さらに限界寸前の部屋に兄が入った瞬間、理性のダムが決壊。 4人の発情女子がゾンビのように襲い掛かり、大乱交に発展！！ 我先にと狂ったようにチ○ポを求め兄の下半身を襲撃！普段は絶対にそんな行為はしない女子たちが媚薬で狂いまくり！

"Does this really work? I'm perfectly fine…" The girls, having obtained an aphrodisiac, take turns drinking it out of curiosity. With a strange sense of pride that "whoever is affected loses," they all pretend to be fine, but their bodies are honest. Their vaginas gradually become wet, and the love juice flows uncontrollably. They secretly begin to masturbate, and the situation escalates to the point where one runs their hand up the other's thigh and attacks the friend next to them. Just as the brother enters the room, which is on the verge of breaking down, the dam of reason collapses. The four aroused girls attack like zombies, and it develops into a massive orgy! They frantically seek out the brother's penis and attack his lower body! These girls, who would never normally do such things, have gone completely wild because of the aphrodisiac!