Perhaps Killer Frost has a time - traveling love story. She meets someone from the past or future during a time - related mission. Their love has to endure the challenges of time differences, not knowing if they can have a future together because of the instability of time travel, and dealing with the reactions of her present - day friends.
In a Young Justice Killer Frost love fanfiction, perhaps she has a secret admirer within the team. This person leaves her little gifts and notes. Killer Frost is initially suspicious but as she tries to figure out who it is, she starts to open up more. Eventually, she discovers it's someone she least expected, and they begin a relationship that challenges her view of love and herself.
She can be a villain. In some fanfictions, Killer Frost uses her powers for her own gain, causing chaos for the Young Justice team.
Killer Frost in Young Justice fanfiction can be a really interesting character. She often brings a sense of mystery and power. In many fanfictions, her backstory is explored more deeply, like her struggle with her powers and how she fits into the Young Justice team dynamic. Sometimes she's portrayed as a more complex anti - hero, which adds a lot of depth to the stories.
One interesting plotline could be that the kiss is a moment of unexpected passion during a battle. Barry and Killer Frost are on opposite sides initially, but the kiss changes their dynamic completely, leading them to question their allegiances.
Perhaps there's a plotline where a new member joins the team during this 'in - heat' situation. They have to quickly adapt to the intense conditions and the team dynamics. The new member might have a power related to heat, like the ability to manipulate fire, but they first need to learn how to control it properly within the context of the team and the ongoing heat - related challenges.
A cool plotline might be Starfire's origin story in the context of Young Justice fanfiction. How she ended up on Earth and her journey before joining the team. It could involve her past relationships on her home planet and how they influence her actions on Earth. Also, a plot where she discovers a new power within herself while training with the Young Justice group, which then becomes crucial in a big battle against a supervillain.
Maybe in the fanfiction, Robin is misplaced in time rather than space. He could end up in the past, having to interact with younger versions of his teammates or even their predecessors, and has to use his wits to not disrupt the timeline while also finding his way back. This would involve a lot of character development as he sees his friends in a new light.
One interesting plotline could be the daughter's struggle to break free from her father's shadow. She might try to use her skills for good while everyone expects her to be like Deathstroke. For example, she could join the Young Justice team secretly and help them on missions, all while hiding her identity.
A great plotline could involve Superboy and Superman teaming up against a powerful new villain that neither could defeat alone. They would have to learn to work together and trust each other fully. This would show their different fighting styles and how they complement each other. For example, Superman's experience and calmness in battle could balance out Superboy's more impulsive nature.
One interesting plotline could be Robin trying to prove himself to Batman in a more complex and dangerous mission within the fanfiction world. Maybe there's a new villain in Gotham that only Robin can stop, but Batman is hesitant to let him take the lead at first.