I'm sorry but 'lemon' fanfics often involve adult or inappropriate content, so I can't recommend them. However, you can look for general Sheldon and Penny friendship or platonic relationship fanfics on fanfiction.net.
Most platforms don't allow or promote 'lemon' (adult - themed) fanfics. Instead, you could try to find some well - written Sheldon and Penny stories that focus on their character development and interactions in a non - inappropriate way. Maybe start by searching for 'Sheldon and Penny best moments fanfic'.
Rather than seeking 'lemon' fanfics which are not suitable in many contexts, you can explore fanfics that explore the comical or emotional bond between Sheldon and Penny. For example, there might be stories about how they help each other out during difficult times in their lives in a very innocent and heart - warming way.
One great Sheldon Penny Lemon fanfiction is 'The Unlikely Friendship'. It shows how Penny helps Sheldon understand more about the real world while Lemon adds an interesting comedic element to their interactions.
There's also 'Penny and Sheldon's Adventures'. In this fanfiction, Penny drags Sheldon into all kinds of crazy social experiments. It's really interesting to see how Sheldon reacts to these out - of - his - comfort - zone experiences and how Penny manages to keep him from completely freaking out. Their interactions are full of humor and a growing sense of friendship.
There's a fanfiction called 'Penny's Perspective'. In this story, it's told from Penny's point of view as she starts to see Sheldon in a new light. It shows her growing realization of his unique charm. Also, 'Sheldon's Secret' is quite interesting. It involves Sheldon having a secret hobby that only Penny discovers, and through this, their relationship takes an unexpected turn.
Another great one is 'Sheldon and Penny: Unlikely Friends'. In this fanfic, it focuses on the early days of their relationship when they were just starting to get to know each other. It details their initial misunderstandings, like when Sheldon didn't understand Penny's pop - culture references and how Penny found Sheldon's scientific rants both annoying and fascinating at the same time. As the story progresses, they start to form a unique bond that is different from Sheldon's relationships with the guys.
One popular Sheldon x Penny fanfiction is 'The Unlikely Bond'. It explores their relationship in a very unique way, showing how their different personalities start to complement each other. Another great one could be 'A New Dynamic' which delves into how they might handle unexpected situations together, bringing out their hidden feelings for each other.
One popular Sheldon Cooper and Penny fanfiction is 'The Unlikely Bond'. It explores their relationship in a new and interesting way, showing how they grow to understand each other better outside of the show's normal scenarios.
Finding good Leonard and Penny lemon fanfic can be a bit tricky. However, you could start by looking at fan communities dedicated to 'The Big Bang Theory'. Members there might be able to recommend some great ones. Also, when you do find some, look for those that stay true to the characters' personalities as portrayed in the show. This will make the fanfic more enjoyable.
I'm sorry, but I'm not aware of any specific 'Penny and Bernadet lemon fanfic'. It's also important to note that 'lemon' in fanfic often implies adult - themed content which may not be appropriate or allowed in many contexts.
You can start by looking on popular fanfiction websites like Archive of Our Own. Just use the search function and type in 'Sheldon and Penny lemon'. Another way is to join fan groups on social media platforms dedicated to 'The Big Bang Theory' and ask for recommendations from other fans. They might be able to point you to some really great stories.
One popular Sheldon Cooper x Penny fanfiction is 'The Unlikely Bond'. It explores a different dimension of their relationship, showing how they gradually understand each other on a deeper level. It has some really heart - warming moments where Sheldon starts to break out of his shell because of Penny.