【モノ凄い乳首アクメでビクビク大痙攣！】嫁の連れ子（反抗期）が常にノーブラ姿で家の中をウロウロしているためムラムラが止まらない義父。ある日無防備な胸元から発育中のビンビン桃色チクビがポロリ！「あぁぁ触れたい！」と性欲衝動が抑えきれずイタズラこねくり！抵抗する義娘を羽交い絞めにしてイジりまくるとビクビク赤面失禁！そして悶える姿を見て「変態チクビちゃんはお仕置きだね」とビーチク吸引振動マシン刺激・粘着オイルマッサージ・クリクリ暴走ピストンSEXなどセクハラ性感開発をエスカレートさせていく。さらにチクイキを覚えてしまった彼女は自らイジくり快楽に溺れて理性がブッ飛ぶ！

[Incredible nipple orgasm with trembling convulsions!] The stepfather can't stop his lust because his stepdaughter (who is going through a rebellious phase) always wanders around the house without a bra. One day, her developing, firm pink nipples pop out from her defenseless chest! "Ahhh, I want to touch them!" he thinks, unable to control his sexual urges, and starts to playfully tease her! He holds his resisting stepdaughter in a headlock and teases her relentlessly, causing her to tremble, blush, and lose control of her bladder! Seeing her writhing in agony, he says, "You perverted nipples need to be punished," and escalates his sexual harassment and sexual development with nipple suction and vibration machine stimulation, sticky oil massage, and frantic piston sex. Furthermore, having discovered the power of nipple orgasms, she starts to tease herself and loses all reason as she drowns in pleasure!