Captain America would be a great addition. His leadership and moral compass could guide Hulk and She - Hulk when they face difficult decisions. And his combat skills could come in handy during battles.
The Abomination could be a great main antagonist. He already has a history with the Hulk and his hatred for Hulk could extend to She - Hulk as well. He could be trying to create a new gamma - based weapon to finally defeat the Hulks once and for all.
A plot could revolve around a scientific experiment gone wrong that affects only them. They start to lose control of their powers in different ways. Hulk might become too calm and lose his rage - fueled strength, while She - Hulk might turn into her human form at the wrong times. They have to work together to reverse the effects of the experiment, all while dealing with the problems that come with their power - changing states.
One idea could be that they team up to face a new super - villain who is immune to normal Hulk - like strength. So, they have to combine their smarts and unique Hulk - related abilities in a new way. Another could be a story where they explore their family connection in a more in - depth way, like dealing with the implications of being related Hulks in a world that still doesn't fully understand them.
She - Hulk's legal background would add an interesting dimension. The Justice League often deals with complex situations that could involve legal aspects. She could help them navigate through any legal loopholes or treaties. For example, if they have to deal with an international incident caused by a supervillain, she could be the one to sort out the legal implications.
Sure, She-Hulk is related to Hulk. Jennifer Walters, aka She-Hulk, got her powers because of a blood transfusion from her cousin Bruce Banner, who is Hulk. This connection is a key part of their storylines in the comics.
One key element is the power dynamic. Given their super - strength and large - scale capabilities, how they interact with each other in terms of power usage is often explored. For example, in some fanfictions, they might have to hold back their strength when being affectionate.