Based on: Original
Official Site: http://www.broccoli.co.jp/cd/sp/lovelesson/
Koisuru Lesson is a series in which you date your instructor/teacher. Each vol. has a different character that teaches something (cooking, violin, English, etc). The setting is that you are both a student and the girlfriend of said character. There are six CD's in total, divided in pairs, and the characters make cameo appearances in the CD they are paired with.
This CD has Nashimoto Fumiya (CV: Hirakawa Daisuke) who owns a cafe and a restaurant, and also hosts a cooking class. And the 28year old chef is quite popular with the ladies, as you'll notice right at the beginning of the CD. After they are done gossiping and asking Fumiya questions, he comes to see how you are doing, and is not at all pleased with what you are doing, but is nice right after that again.
Which is when Kousei (from this CD. CV: Suzumura Kenichi) suddenly jumps into the conversation. He burned his sauce and is now waving the saucepan about, causing chaos. Luckily no-one gets injured. After the lesson is finished, Fumiya asks both of you to stay a little longer for a private lesson because you won't be able to keep up with the rest otherwise. It is during this time that Kousei keeps chatting endlessly to you, almost inviting you out, until Fumiya interrupts him and he finally realizes that you and Fumiya are dating.
In the rest of the CD you go out on a date with Fumiya. You wanted to go on a drive, so he takes you to his family's villa in the mountains (you fall asleep in the car). When you are there you play Othello for a bit, and he gets a call from senpai. Apparently he has been offered a job to manage a restaurant in France, but he has no intention of accepting it. You mumble something that he shouldn't feel restrained by you, and eventually run of into the mountains.
Of course Fumiya comes chasing after you. He catches up with you, and tells you that he likes being with you (while you pull of the entire 'I don't deserve you, I'm to plain, etc' act) and gives you one very long kiss to persuade you. And then you go back and eat dinner. OK it wasn't that simple, and the menu sounds great.
Fumiya calls you "princess" when you are alone, and sort of spoils you a bit. So his attitude when he is alone with you, and his attitude when you are his student is definitely different. Like I described before, the difference between Fumiya and Kousei is amusing. Kousei livens the story a lot, though almost too much. When he is there almost all attention is drawn to him, luckily you get your time with Fumiya alone afterwards so it's all good.
Fumiya is a bit more mature boyfriend, which I like better. That, and that kiss alone makes it worth listening to this CD.