In some fanfictions, the idea of Hermione and Severus having a baby might be conceptualized as a way to explore an unexpected relationship. It could be a plot device to show the power of love and connection that transcends the typical boundaries of their relationship in the original series. Maybe it's a result of a magical accident or a deep, hidden love that blossoms over time.
Some in the wizarding community might be shocked and disapproving. Given Severus's past and the age difference between him and Hermione, there could be a lot of gossip and judgment. However, their close friends would probably be more accepting and supportive.
Their relationship would likely become more centered around the baby. They would have to cooperate even more closely to take care of the little one. There would be less time for their own personal issues as the baby's needs would be top priority.
In fanfiction, it's often about bending the rules of the original universe. It could be possible through magical means that weren't explored in the original books. Maybe a powerful spell went wrong and created an unexpected bond between Hermione and Severus, leading to the birth of a baby. Another idea could be that in an alternate reality, their relationship developed in a completely different way, allowing for such a situation to occur.
One idea could be that Severus and Hermione have to protect their baby from dark forces. Maybe there are some old enemies of Severus who target the baby to get revenge. Another plot could be the baby having some unique magical abilities that they need to figure out how to handle and train.
I'm not sure if there is such a specific fanfiction. However, in the general context of Hermione and Severus fanfiction, their relationship is often complex. In some fanfictions, they might develop an unexpected bond through shared intellectual pursuits or mutual understanding of the wizarding world's deeper secrets.
One idea could be that the baby has Snape's intelligence and Lily's kind heart. In the fanfiction, perhaps the baby grows up in a world where the truth about Snape's love for Lily is known. This could lead to a lot of interesting interactions with other characters from the Harry Potter universe. The baby might be a powerful wizard or witch, inheriting both Snape's potions skills and Lily's natural magical talent.
Perhaps the baby's existence causes a rift in the wizarding world. Some might view it as an abomination due to the age and past relationship between Hermione and Severus. This could lead to Hermione and Severus having to fight not only for their baby's safety but also for their right to be a family in a world full of prejudice.
Severus, with his brooding and often secretive personality, might teach the baby the importance of self - reliance and not showing all of one's emotions. He'd also pass on his knowledge of the Dark Arts, but in a way that teaches the baby to use it for good or defense only.
One possible plot twist could be that the baby has some unique magical abilities that neither Severus nor Hermione expected. Maybe the baby can communicate with magical creatures in a way no one has seen before. This could lead to all kinds of adventures as they try to understand and control this new ability.