What are the possible scenarios where MJ gets jealous in black cat fanfiction?

One possible plotline could be that the black cat has a closer relationship with MJ's love interest. So MJ feels jealous as she sees the black cat getting more attention from the person she likes.

I'm not entirely sure if there is a specific 'mj jealous of black cat fanfiction' out there. However, fanfiction communities are creative and diverse. You could try looking on websites like Archive of Our Own or FanFiction.net. Just type in relevant keywords and see what comes up. There may be stories where MJ shows jealousy towards a black cat character, perhaps in the context of a superhero or other fictional settings.

Well, it depends on how the fanfiction is written. In some black cat fanfictions, MJ could get jealous. Maybe because the Black Cat is shown as being really close to the male lead, and MJ, who might be in love with the same person, would naturally feel a bit envious. But in other fanfictions, it might not be the case at all if the plot doesn't involve any sort of triangle or competition between them.

A common scenario is when there's a new character introduced. This new person starts getting a lot of attention from Blake's significant other or close friends. For instance, if Blake has a romantic partner, and a new person joins their group who is very charming and friendly, Blake might start to feel jealous as she sees her partner enjoying the new person's company.

In the fanfiction, perhaps there's a new recruit in the Joker's gang who is very talented and starts getting a lot of attention. The Joker, being used to being the center of attention, gets jealous. He might start giving the new recruit impossible tasks to do in order to undermine them and regain the spotlight.

One possible scenario is when Bella is more successful in achieving a common goal in the fanfiction world. For instance, if they are both after a magical artifact, and Bella gets it first. Another scenario could be that Bella has a closer relationship with a mentor figure, which Elena covets. It might also be that Bella has a more glamorous appearance and gets more admiration from other characters, making Elena jealous.

One scenario could be that Harley gets more attention from a love interest. If there is a shared love interest in the fanfiction, and Harley is always getting the girl or boy's attention, Peter would be jealous.

A common scenario is when Naruto is given a special mission or task that Sasuke feels he should have been chosen for. Sasuke's pride and his competitive nature with Naruto make him jealous. He might think that Naruto is being favored over him.

In some fanfictions, Jacob could get hurt while exploring an unknown area. There could be some sort of hidden danger, like a trap set by an enemy. Or perhaps he gets hurt in a natural disaster that occurs while he's in his wolf form and unable to fully protect himself. For example, a sudden landslide or a forest fire.

A common scenario is when Naruto is praised by someone else, like another ninja in the village. Sasuke may get jealous because he wants to be the one Naruto looks up to or the one whose opinion matters most to Naruto. Another scenario could be when Naruto makes a new friend, and Sasuke sees them spending a lot of time together. He might feel left out and jealous.