As adolescent Daichi was mesmerized by his mother Miori's soft, supple lips, he couldn't help but fantasize about tasting them. What would that first kiss be like? To celebrate Daichi's blossoming sexuality, Miori decided to teach him through practice. Slowly, they exchanged tender kisses, their tongues dancing together. She teased his sensitive inner mouth, swirling her tongue around and sharing saliva with him. As they deepened their passionate kisses, Miori's experienced super-tongue techniques took over, leaving Daichi completely under her spell.

思春期を迎えた大輔は母・明里の口唇に夢中だった。ぷっくりと柔らかい口唇を貪ってみたい。ファーストキスはどんな味がするんだろうか。そんな性に目覚めた大輔の成長を祝って明里が実践で教えてくれることに。ゆっくりとキスを交わし触れ合う舌先。敏感な咥内を舐めまわし唾液を交換し合う二人。濃厚接吻を重ねるうちにエロスイッチが入った明里の経験豊富な超舌テクニックに翻弄されていく。