Pepper Potts is a character in the Iron Man movies and Marvel Comics. She is Tony Stark's (Iron Man) close confidante and later his love interest. She is known for her intelligence, business acumen, and her role in Stark Industries, helping Tony manage his company and often getting involved in his superhero affairs.
One of her major contributions is in running Stark Industries. When Tony is off being Iron Man or getting into other troubles, Pepper keeps the business side of things going. She manages the company's operations, deals with shareholders, and ensures the continued success of Stark Industries.
One of the great fanfictions could be those that explore their relationship during the early days of Stark Industries. Maybe it shows how Pepper first started to see Tony not just as her boss but as someone she could care for deeply. For example, a story might detail how she dealt with Tony's erratic work hours and his crazy inventions that sometimes went haywire in the office.
In some fanfictions, Pepper uses her business acumen to get them out of dangerous situations. For instance, if Stark Industries is under threat from a rival company that has ties to some villains, Pepper might use her negotiation skills to defuse the situation.
In this fanfiction, Pepper might struggle a bit with the idea of being pregnant while Tony is constantly in the spotlight as Iron Man. She could worry about how their child will grow up in such a public environment. However, Tony reassures her that they can create a normal family life within their extraordinary circumstances.
My character might be in awe of Pepper at first. She's so organized and capable. I'd probably be a bit nervous around her, but also respectful. Maybe I'd help her out with some small tasks when Tony is too busy with his Iron Man stuff.
I really like the fanfic 'Pepper's Perspective'. This one is interesting because it's told from Pepper's point of view. It gives a deeper understanding of how she feels about Tony, both his genius side and his flaws. It also has some great scenes where she helps him make important decisions regarding Stark Industries.