There's no way to really tell if it's common specifically for someone named Jojo. However, in general, reading fanfiction is a popular activity among fans of many different franchises. The Jojo series has a large and dedicated fan base, so it's likely that there are fans named Jojo who partake in reading fanfiction, but we can't say for sure how common it is without more data.
In many Austin and Ally fanfictions where Austin kisses Ally, it often represents a significant moment in their relationship development. It could be a culmination of their long - hidden feelings for each other. For example, in some fanfictions, this kiss might happen after a big performance where they realize how much they mean to one another. It's a moment that fans love to read about as it shows the deepening of their bond.
One possible scenario in this fanfiction could be that Austin has a really important performance coming up. But when he gets sick, Ally has to take care of him. She might make him special soups and teas to help him get better while also trying to keep his spirits up. Maybe she even tries to come up with some new song ideas to cheer him on during his recovery.
Perhaps this Jojo is interested in exploring different interpretations and stories within the Jojo universe that fans have come up with. Fanfiction often takes the existing characters, settings, etc. from the original Jojo series and creates new and unique storylines. So, this Jojo might be a big fan of the series and wants to see what other fans have imagined.
One scenario could be that Austin gets hurt during a performance. He might have fallen off the stage or something. This would cause chaos in the venue, and Ally would be the first one to rush to his side. She'd be worried sick, and it would be a moment where she realizes just how much he means to her. Their friends would then come and try to help, and through this event, the group would become even closer.
Sure. There could be fanfics where Ally and Austin face a new challenge in their music careers, like competing in a big music competition. They might support each other, learn new things, and grow both as individuals and as a duo. This would be a great plot for an 'Austin and Ally' fanfic that doesn't involve any inappropriate content.
It depends. Maybe there are some telltale signs or elements that suggest it's a JoJo reference fanfic, but without specific context, it's hard to say for sure.