Definitely not. Teaching sex stories to kids goes against the principles of protecting children's innocence. They should be focused on age - appropriate educational topics like basic math, reading, and moral values rather than sexual matters.
I'm not entirely sure specifically what 'kidz bop love story' is about as it could be a unique take on the concept of love within the Kidz Bop brand. It might be a song that tells a sweet, innocent love story in a way that's appropriate for kids, perhaps about young crushes or friendship - like love.
You could focus on teaching them about nature. Talk about different animals, plants, and the environment. This can expand their knowledge about the world around them. You can also read them books about friendship, like 'Winnie - the - Pooh', which shows positive relationships and how to be a good friend.
In general, the Evangelion mangas are considered good. They expand on the anime's universe, providing more depth and character development. However, it depends on personal preferences as some might find the style or pacing not to their liking.