Witnessing her best friend's passionate deep kiss right before her eyes, she finds herself unconsciously rubbing her thighs together. The amateur girl is so aroused by her best friend's deep kiss that she lets out a moan! Witnessing the raw scene, the amateur girl's lust switch is flipped, her reason collapsing! A group of two female friends are approached, and the plan is explained, promising them a reward. The goal is to see if they will fall in love after deep kissing a stranger. One refuses, but the other thinks it sounds interesting and joins the challenge! The friend who was initially negative becomes aroused as she watches the two deep kissing… – 大親友の熱いディープキスを目前で鑑賞。無意識に太ももを擦り合わせる友達。親友のディープキスに興奮して思わずオナり声が漏れる素人娘！生々しい現場を目撃し理性崩壊した素人娘の淫乱スイッチ！女性2人組の友人グループに声を掛け、謝礼をお渡しするのでと企画説明。見知らぬ男とディープキスをして恋に堕ちるのか？を検証。一人が拒否するが、もう一人が「面白そう」とチャレンジに参加！否定的だった友人がディープキスしている二人を見ているうちに興奮してしまい…。