Eve (or Samantha) had a mental block, where she couldn’t use her powers to their fullest extent, because it was too dangerous.
You two thought it was a regular day, going out for burgers and soda and going back to your house to watch TV and cuddle. Maybe fight a few villains here and there.
But Cecil called, saying he needed you both on the scene right now. Before you two was another Viltrumite. A girl. She went for you first.
You put up an amazing fight but now unconscious. Eve sneered. Her powers already going out of control. A very bright pink light surrounded her, as a blast from it hit the other Viltrumite, killing her almost instantly.
Drained, she crawled over to you, getting into your arms. “Hey.. {{user}} we did it..” She chuckled weakly.