お弁当屋で働く後輩に誘われて車内ドライブ。年頃の女の子は性に興味があるようで今は彼氏いないけどいつか出来たときに行ってみたいと男をホテルへ誘う。2人きりになるとどうせするならヘンタイなことをしてみたいと初めてのごっくんと中出しを受け入れた。彼女持ちの男と一線を越えたことで女の気持ちは揺らぎ涙する場面も…。夜までSEXをすることで女は大人の女性へと変化していく。（内容…ゴム中1発、中出し2発、ごっくん2発）9:00…ドライブ中にホテルへ誘う後輩バイトちゃんにドライブをしたいと言われ車内トーク。まだ彼氏が出来たことがないから出来たときに慣れていきたいとラブホへ行きたいと男を誘いホテルへ。10:00…ホテルで初SEX、初ごっくん和風なホテルに入ると少しだけまったりしイチャイチャ。服を脱ぐとHカップの美巨乳。やってみたいと初めてSEXをしドキドキをしながら初めてごっくんをした。14:00…フェラでごっくん一服をしてまったりをしていると男をフェラとパイズリで誘惑。今度は直接飲んでみたいとフェラから口内発射でごっくんをした。16:00…夕方ドライブ1件目のホテルを出るとお酒を買おうとコンビニへ。1人でまっていると気持ちが揺らいだのか車内で気持ちを吐露し大号泣。男と合流すると笑顔になり2件目のホテルへ向かった。17:00…コスプレで初中出し2件目のホテルへ入るとコスプレを着て嬉しそうな様子。フェラをして男がゴムを付けようとするとそれを拒否しナマ挿入。気持ち良くなったのかそのまま中出しを求め、初めての中出しをした。19:00…洗面所ですっぴんフェララフな服に着替えて洗顔しすっぴん姿に。すっぴんに少し照れながらも胸を揉まれ献身的なフェラをしてごっくん。ベッドでもっとしたいと2人は寝室へ向かった。20:30…すっぴんSEXでごっくん初めてづくしのことにドキドキが止まらない様子で最後のSEX。オイルを塗ってテカテカになった体で何度も絶頂し中出しを受け入れた。22:30…お別れドライブ助手席に彼女を乗せて夜のドライブ。楽しかったねと笑顔でキスをしバイバイをした。

A junior colleague who works at a bento shop invites the man for a drive in his car. The girl, being her age, seems interested in sex and invites him to a hotel, saying that she doesn't have a boyfriend now but would like to go to one someday when she does. When they are alone, she decides that if they're going to do it anyway, she'd like to try something kinky and accepts her first swallowing and internal ejaculation. Crossing the line with a man who has a girlfriend makes the woman's feelings waver, and there are moments when she cries… As they have sex until night, the woman transforms into a mature woman. (Contents… 1 shot with condom, 2 shots inside, 2 swallows) 9:00… A junior part-timer invites the man to a hotel during a drive. The junior colleague asks the man for a drive and they talk in the car. She says that she has never had a boyfriend, so she wants to get used to it when she does, and invites him to a love hotel. 10:00… First sex and first swallowing at the hotel. They enter a Japanese-style hotel and relax and cuddle for a while. When she takes off her clothes, she has beautiful H-cup breasts. She says she wants to try it and they have sex for the first time, and she swallows for the first time, feeling nervous. 14:00… She gives a blowjob and swallows. After a break and relaxing, she seduces the man with a blowjob and titjob. This time, she wants to try drinking it directly, so she gives a blowjob and swallows his cum as he ejaculates in her mouth. 16:00… After leaving the first hotel for an evening drive, she goes to a convenience store to buy alcohol. While waiting alone, her feelings waver, and she confesses her feelings in the car and bursts into tears. When she meets the man, she smiles and heads to the second hotel. 17:00… First time cumming inside in cosplay. When they enter the second hotel, she looks happy wearing her cosplay outfit. She gives a blowjob, and when the man tries to put on a condom, she refuses and goes for unprotected sex. She seems to enjoy it and asks for him to cum inside her, and they have her first internal ejaculation. 19:00… Blowjob in the bathroom without makeup. She changes into casual clothes, washes her face, and is barefaced. She is a little embarrassed about being barefaced, but she lets him fondle her breasts and gives a devoted blowjob, swallowing his cum. Wanting to do more, the two head to the bedroom. 20:30…She was so excited about having sex without makeup on and swallowing my cum for the first time, and our final sex session. Her body was glistening with oil and she came multiple times, accepting my cum inside her. 22:30…A farewell drive. I drove her in the passenger seat at night. We smiled, kissed, and said goodbye, saying how much fun we had.