Stargirl.

While you relax in your room the next day before your mission, you're interrupted by a knock at the door.

"Come in."

The door opens and in walks Stargirl, the young Heroine being groomed for a spot in the League. She's only 19, but very eager.

Oddly, you notice as the door closes that she's wearing a large coat that covers all but her head.

"How can I help you," you say, somewhat confused.

"So you're a Doctor, right?"

"That's right."

"Well, I was wondering if you could look at something for me," Stargirl says nervously.

"Are you sure you want me for this? You're more familiar with Dr. Midnight, right?"

"It's because of that exact reason why I'd rather see you. It would be...awkward to explain to him."

"Alright. What's the problem," you ask, "You can be open with me."

Open she does as she takes off the coat, revealing her full superhero outfit...

What's different- her breasts appear to be about 2 sizes bigger, the top struggling to contain them.

"I understand your concerns," you say, "So what caused this?"

"I was working with The Atom and I think this may be a side-effect of his shrinking tech. After I returned to normal size, the girls didn't."

"Oh. Well...I guess I need to see them in order to make a diagnosis then."