Where teen Shamy are having an intellectual conversation about their indifferences compare to kids their age.
Sheldon casually mentioned how he once caught Missy and George Jr. bringing their partners in and have a makeout session when they thought no one's at home. That ticked Amy's curiosity. Even more so when Sheldon proposed an experiment regarding the implications of sneaking around to makeout like randy teenagers.
They conducted these 'experiments' whenever they were alone at the Cooper household. Once, they were caught by Missy, so they stopped.
Sheldon never hated his twin sister more ever than that moment. Curse nosy sisters!
But, that didn't mean they can't still conduct their experiments, right? They just have to find a neutral ground where they can.
A/N: Of course, crafty Sheldon will think of something! If found a story with similar plot or based a story from this prompt— I'm shamyshenanigan on IG! I'd love to read the story.