A possible emotional plot is when Penny discovers she's pregnant and she's afraid she won't be a good mother. She has doubts because of her own upbringing or her past party - girl lifestyle. The fanfiction could then show how she gradually gains confidence with the help of Leonard and her friends, which is a very heartwarming journey.
There might be a fanfiction where Penny is pregnant and she starts to feel really isolated because she's the only one in the group going through this. She misses her old life a bit, and the story could be about how she overcomes these feelings with the support of her friends and Leonard. It's very emotional as it deals with her internal struggles.
There are many possible fanfictions on this topic. One could imagine that in the fanfiction, Penny's pregnancy might bring a new dynamic to her relationship with Leonard. For example, they could become more protective of each other and start planning for their future as parents more seriously. It might also affect their friendships with Sheldon and the others. Sheldon, who is not always good with changes, might initially struggle to adapt to Penny being pregnant and the new baby in their lives.
There could be a fanfiction where Penny's pregnancy makes Leonard super nervous. He starts freaking out about being a dad and all the responsibilities. Meanwhile, the rest of the gang tries to support them in their own clumsy ways. It's interesting to see how the characters' relationships develop during this big life change.
As far as I can remember, there is no such Penny wedgie incident in The Big Bang Theory. The series was filled with different kinds of comical situations. For example, there were Sheldon's idiosyncrasies, Howard's attempts to pick up women, and Raj's selective mutism. But a wedgie incident for Penny just doesn't seem to be part of the storylines.
Leonard would likely become even more protective of Penny. Their relationship would deepen as they face the new challenges of impending parenthood together. He might start to take on more domestic responsibilities, like making sure Penny has a healthy diet during her pregnancy.
Another plot could be Penny dealing with the challenges of her acting career while pregnant. Maybe she gets offered a role that she really wants but is worried about how her pregnancy will affect it. This could lead to some interesting drama as she tries to balance her dreams and her new family situation.
A lot of fanfiction could explore Penny's emotions during her pregnancy. She might be excited but also a bit scared. In the fanfic, we could see her relying more on Leonard for emotional support. And the gang could throw her a really special baby shower, filled with nerdy and fun elements, like Star Trek - themed baby clothes or a cake shaped like a scientific formula.
There are no such inappropriate stories in the official plot of 'The Big Bang Theory'. The show mainly focuses on the nerdy and humorous interactions among the characters, their friendship, and their romantic relationships in a family - friendly way.
She might become more responsible. Penny has always been a bit carefree, but pregnancy could force her to think about the future more. For example, she may start to save money or look for more stable acting jobs.
One plot idea could be Penny struggling with how to tell Leonard. She might be worried about his reaction and how it will change their relationship. Another could be the gang's over - the - top reactions and attempts to help, like Sheldon trying to create a perfect baby - rearing schedule.
One appropriate topic could be their adventures in scientific experiments together. For example, they could be collaborating on a project where Penny's practical skills and Sheldon's theoretical knowledge combine in a comical yet productive way.