Well, 'Star - Crossed with Ben Tennyson' is a must - read. It has an interesting take on the relationship, with the reader character coming from a different world and how they and Ben deal with the cultural differences. And 'Love Among the Aliens' is really good too. It shows a more mature side of the relationship between Ben and the reader, dealing with issues like trust and loyalty in a very engaging way.
To write a good 'Ben Tennyson x Reader' fanfiction, you need to focus on their relationship development. Start with how they meet and gradually build up the chemistry between them. Make use of the Omnitrix and Ben's alien forms in the story to add some action and excitement. For instance, the reader could be in danger and Ben has to transform into one of his aliens to save them. And don't forget to add some emotional depth to their interactions.
I really like 'Ben Drowned: Unraveling the Mystery x Reader'. This fanfic has a great plot where the reader tries to figure out the truth behind Ben's existence. It has some really interesting interactions between the two characters that make it a captivating read.
Obviously, Ben Tennyson is one of the main characters. He is the central figure around whom the story revolves. And the 'babies' are also main characters, though who they are exactly can vary. They could be new alien forms that Ben discovers and takes under his wing, or they could be some sort of younger versions of himself or other characters related to the Ben 10 universe.
In some fanfictions, baby Ben might be in a situation where he's being protected by his future self's allies. For example, Gwen and Kevin could be babysitting baby Ben, and they have to deal with all the chaos that his unpredictable Omnitrix activations bring. It's a fun concept as it shows a different dynamic between the characters.
It really depends on the situation. If it's in a magical environment like Hogwarts, Harry might have an advantage with all the spells he knows. But if it's an open area, Ben with his Omnitrix could transform into an alien like Way Big and overpower Harry with his size and strength.
You can start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own (AO3). These platforms usually have a wide variety of fanfictions, including ones related to 'baby ben tennyson'. Just use the search bar and type in the relevant keywords.
In these fanfictions, both Ben and Juniper are central to the plot. Their different backgrounds, Ben from a more science - fiction based world and Juniper from a magical world, create a contrast. This contrast is often explored, whether it's in how they approach problems, how they communicate, or how they form a bond. They are the two main forces that drive the story forward.
One reason could be that in the fanfiction, Ben is getting a lot of attention from other characters. Maybe the story has Ben in a romantic relationship with someone else, and Gwen, who has a close bond with Ben in the original series, feels left out. It could also be that the fanfiction portrays Ben in a heroic light without much focus on Gwen's role, making her jealous of the spotlight he's getting.
Another plotline might involve Ben protecting his 'babies' from an enemy that specifically targets them because of their relation to Ben or their potential power. He'd have to use his experience and the various alien forms at his disposal to keep them safe.
I'm not entirely sure as I haven't read that specific fanfiction. But generally, in Ben 10 related fanfiction, it might involve creative and often alternative storylines about Ben Tennyson and Gwen Tennyson's relationship, perhaps with some unique adventures or character developments.