No. Writing sexual fanfics about real people is inappropriate and violates their privacy. Tom Holland and Zendaya are actors who should be respected for their professional work rather than being the subjects of such inappropriate fictional content.
One possible storyline could be that they keep their pregnancy a secret at first. They are worried about how the public and their families will react. So they go about their normal lives, with Zendaya still taking on acting roles and Tom Holland training for his next Spider - Man movie, all while trying to hide the little baby bump.
There are also a lot of 'alternate universe' stories. For example, they might be set in a high school or a fantasy world where Tom and Zendaya's characters meet in different circumstances. These types of stories allow fans to be really creative and deviate from the real - life scenarios. Some fanfics also focus on their friendship evolving into a romantic relationship, which is quite sweet and many fans enjoy reading about that.
Another common theme is 'Secret Relationship'. Given their real - life status as co - stars and the public's interest in their relationship, many fanfictions explore the idea of them secretly dating, trying to keep it from the media and the public eye. This often adds an element of mystery and drama to the stories.
Tom's character could develop into a more responsible and protective figure. He might start to take on fewer dangerous stunts in his movies to be more cautious for the sake of his family. He could also become more involved in charity work related to children and families.
You can write about their characters' adventures in the movies they are in. For example, if they are in a superhero movie, you can write about how their characters team up to fight a new villain.
Fanfiction.net is also an option. It has been around for a long time and has a lot of content related to various fandoms, including ones centered around Tom Holland and Zendaya. You may need to sift through some stories to find the really good ones, but there are definitely some hidden gems in there.
In the fanfic, the lemon could be a gift from one to the other. Let's say Zendaya gives Tom a lemon - scented bookmark. Tom, being a bit clueless at first, doesn't realize it's a sign of her affection. As he starts to notice little things like how she always looks at him when he uses the bookmark, he begins to understand her feelings. And the lemon - scented bookmark becomes a symbol of their budding relationship.
Fanfiction.net is also a great place to look. There are many talented writers who create stories about them. However, the quality can vary, so you might need to skim through a few to find the ones that suit your taste.
Adventure is also a theme. Fanfics might have them going on wild adventures together, like exploring ancient ruins or traveling to uncharted islands while also falling in love along the way.