Fanfiction.net is also a good place. There are numerous fan - created stories there. However, the search might be a bit more tricky compared to AO3. But if you dig around a bit, you might find some really good Tony and Pepper kiss fanfictions.
One great story could be 'A Moment in the Sun'. It beautifully depicts their relationship and has a really tender kiss scene. It focuses on a time when Tony and Pepper are in a peaceful moment at Stark Tower, and the kiss is a culmination of their growing feelings.
In many fanfictions, their first kiss is often a culmination of a building tension. It might be in a moment of great relief, like after they've overcome a major crisis together. For example, after Tony survives a dangerous battle with his suit malfunctioning, Pepper rushes to him, and in that emotional moment, their lips meet. It's a kiss filled with unspoken emotions, relief, and a new level of closeness.
In many fanfictions, their first kiss is often a moment full of pent - up emotions. It might happen during a time of great stress or relief. For example, after Tony survives a dangerous mission, Pepper is so overjoyed and relieved that she can't hold back her feelings any longer. Their eyes meet, and there's a brief moment of hesitation before their lips touch, a gentle and passionate kiss that marks a new level of closeness in their relationship.
The moment when Tony surprises Pepper with a kiss after a successful business deal in the fanfiction can be really great. It shows his spontaneous side and how he can balance his business life with his relationship. It's a simple yet sweet moment.
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.
The emotions are complex. There's the initial spark of attraction that has been there all along but is now fully ignited. Tony might feel a bit of pride in finally being able to show Pepper how he really feels. Pepper could be feeling a sense of wonder, like she's stepping into a new chapter of her life. There's also a sense of vulnerability. They are both opening themselves up in a very intimate way. It's not just a physical act but an emotional one, and they are baring their souls to each other in that moment of the first kiss.
One of the main emotions is passion. Fanfictions often depict their relationship as very intense. So when they kiss for the first time, it's a moment of pure passion. But there's also a touch of vulnerability. They are both exposing their true feelings, and that can be scary. Tony, who is usually so confident, might be a bit hesitant, and Pepper, who has to deal with Tony's complex life, is taking a risk by showing her love so openly.