Does anyone know any stories with characters acting too mature for their age in a belivable fashion? basically some scenario to get teenagers acting like an old married couple with causal displays of affection instead of the more typical teenaged desperate passion.
Only one I know of is https://storiesonline.net/s/60750/building-a-better-past while there that's because of a DoOver, there are other ways to have the characters acting that way (some even without any fantastic elements), the important part I'm looking for is the way the characters are acting, not the DoOver.