My best friend Rin Natsuki has always been there for me when I needed her help. Even though she was my first girlfriend, I couldn't even kiss her properly due to being such a shy guy. Feeling sorry for me, Rin suggested that we practice together. We started off with French kisses and worked our way up to deep kisses. As we got more comfortable with each other, the sensation of our tongues dancing became irresistible. One day, after hours of passionate kissing, I couldn't control myself anymore and proposed having sexual intercourse. It all happened so naturally that neither of us could resist any longer. Since then, every time we see each other, we can't help but remember the intimate moments we shared through those intense kisses...

初めて彼女ができたけどキスすらまともにできない奥手な僕を見かねて、幼馴染のりんが「アタシで練習してみる？」と提案してきた。フレンチキスからディープキスまで練習し、りんの柔らかい唇と絡みつく舌の感触が想像以上に気持ち良く接吻の相性が良い僕らは来る日も来る日もキスの練習にのめり込む。ヨダレの架け橋たら～り濃厚ベロチューの快楽にキスだけで我慢できなくなった僕は半ば強引にエッチの練習も申し出てりんとなし崩し的にセックスしてしまう。それ以来僕らは気まずくなってしまうがお互いにキスの感触が忘れられず…。※ 配信方法によって収録内容が異なる場合があります。