Well, a possible plot idea is that the kiss was part of a bet or a game. But as they go through the motions of whatever the bet/game entails, they start to have real feelings for each other. Maybe Sheldon starts to write equations about his new - found feelings for Penny, which she discovers and finds endearing. And for a third idea, it could be that they kiss in an alternate universe where their personalities are slightly different, and then they have to figure out how to deal with it when they return to their normal selves.
A great plot idea could be that the kiss was a result of a misunderstanding. For example, Penny thought Sheldon was someone else in the dark. But after the kiss, Sheldon becomes obsessed with the feeling and tries to recreate the moment in a very Sheldon - like way. He might start analyzing the chemicals in their bodies during the kiss or something. Meanwhile, Penny is trying to avoid him out of embarrassment, but as time goes on, they both realize there might be more to their relationship than just that one kiss.
One idea could be that Penny and Sheldon find out they're pregnant unexpectedly. They then have to deal with their different personalities while preparing for the baby. Sheldon might start making scientific plans for the baby's upbringing, while Penny tries to keep things more laid - back and normal.
One plot idea could be that Penny and Sheldon accidentally end up in a time - traveling adventure together. They find themselves in a different era and have to rely on each other's unique skills to get back home. Penny uses her street smarts and social skills, while Sheldon uses his scientific knowledge.
One interesting scenario could be when Penny tries to introduce Sheldon to more social activities. She might drag him to a party and he starts to analyze the social dynamics in his unique way, which amuses Penny. It shows a different side of their relationship where Penny is trying to expand Sheldon's world.
Well, a Sheldon and Penny lemon fanfiction could be about a scientific experiment gone wrong that somehow bonds them in a strange way. Maybe they have to share a special connection to fix the experiment's results. As they work together, they start to see each other in a different light. There could also be a story where Penny tries to teach Sheldon about love and relationships in a more hands - on way, which leads to some comical and heartwarming moments between them.
One common plot is how they adjust to living together as a married couple. Since they have such different personalities, it can be really fun to read about how they deal with daily life, like Penny trying to get Sheldon to be more social or Sheldon getting Penny interested in his scientific hobbies.
One interesting story could be where Dark Sheldon tries to manipulate Penny into helping him with some of his more unethical scientific experiments. Penny, being street - smart, initially gets caught up in it but then realizes what's going on and tries to stop him.
In some fanfiction, they might face challenges from their friends. For example, Leonard could initially have a hard time adjusting to the idea of Sheldon and Penny being married. But as time goes on, he realizes that they are actually good for each other. Also, their marriage could lead to some really funny situations at home, like Sheldon trying to understand Penny's love for shopping and Penny trying to tolerate Sheldon's obsession with the perfect seating arrangement in their living room.
Yes, there are quite a few. Some fanfictions explore a different side of their relationship, like Sheldon gradually realizing his feelings for Penny in a more comical yet heartwarming way.
One idea could be Sheldon getting involved in a science competition that's more challenging than he expected. Maybe he has to team up with someone he doesn't like at first but then they become friends. Another could be Sheldon trying to build a super - complicated machine in his garage with limited resources. And a third could be Sheldon having to deal with a bully at school who mocks his intelligence but he outsmarts the bully in the end.
Leonard would probably be shocked at first. If he's in a good place in his own relationship, he might be more accepting. But if not, it could stir up old feelings of jealousy. However, in the long run, depending on how Sheldon and Penny handle it, Leonard could come to accept it and they could all find a new normal in their friendship group. For example, if Sheldon and Penny are happy together, Leonard might see that and be happy for them despite the initial shock.