You can try looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of various fanfictions, and you might be able to find some great mavis and jonathan baby fanfiction there.
One interesting story could be about Mavis and Jonathan taking their baby on a magical adventure through the forest near their home. The baby discovers new magical creatures and they all have to work together to protect the forest from a dark force.
The appeal of Mavis and Jonathan kiss fanfiction lies in the fact that it can fill in the gaps that the original story might have left. Maybe the original didn't show enough of their romantic moments. Fanfiction writers can then create these beautiful kissing scenes that satisfy the readers' desire for more romance between the two characters. Moreover, it can be a form of escapism for readers who love their relationship, as they can immerse themselves in these fictional, romantic scenarios.
One great piece of Mavis and Jonathan kiss fanfiction is 'A Moment in the Moonlight' on FanFiction.net. It beautifully captures their relationship and the emotions behind their kisses.
There's also a fanfiction that focuses on Mavis's relationship with her father Dracula as a baby. It shows how he was overprotective but also how much he loved her. In this story, Mavis tries to convince her father to let her go outside the hotel just for a little while, which leads to some really heart - warming and funny moments.
Their relationship would likely become more centered around the baby. They would have less time for just themselves and more time taking care of the baby's needs.
One possible plot could be that Mavis and Johnny struggle to adjust to life with a new baby. They might face challenges like different parenting styles. Mavis, being a vampire, has her own cultural way of raising a child which might be different from Johnny's human way. They could also have cute moments like the baby showing early signs of having vampire powers, which Johnny finds both amazing and a bit scary.
A common theme is Mavis's growth and development. Writers often explore how she learned about her vampire powers as a baby. For example, in some fanfictions, she discovers she can turn into a bat earlier than expected and has to deal with the consequences of that, like getting stuck in a small space.
Maybe Mavis, in her exploration of different realms, ends up in the ninja world. She gets into trouble and Naruto comes to her rescue. Naruto is intrigued by her magic and Mavis is impressed by his ninja skills. This encounter plants the seed for their relationship that eventually leads to marriage.
One interesting Jonathan and Nancy baby fanfiction could be about their journey into parenthood. It might explore how they adjust to having a new baby in their lives, like dealing with sleepless nights and the joys of the baby's first steps.