Use the FIM on Supergirl to install a tit fetish.

With all the members of the Justice League having secret identities it had made things difficult. You had almost attempted to take on Batman in the form of Bruce Wayne, when hoping to fund your plans. You needed therefore to know whom were the people who were you biggest threat. And a certain kryptonian with X-Ray vision may be able to help with that.

As Diana was able to slip a FMI into Supergirl's apartment you were now free to alter her fantasies in a way that would make her all but dependant on you.

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Supergirl

"Oh Rao what a night" she groaned floating up in the bed. It had been one hell of a dream she had, imagining herself having ridiculously large tits that only a horny teen could think of. Even thinking of it sent a sudder of arusal down her spine, which in turn led her to blush in embarassment. Strange she had never dreamt like that before.

Getting dressed into her uniform she flew into the air. Her cousin was off world meaning she would be pulling a double shift. As she flew into the air she listened out for any signs of trouble.

It was then that she heard an all too familiar sound of a crash. Flying there she could see her other world counterpart Power Girl locked in a fight with Grundy. In an instant Supergirl plunged at him punching him to the back as Power Girl punched him in the gut. Unable to take two simultaneous kryptonian punches he crumpled.

After the police turned up and arrested Grundy, Supergirl turned to her other world Power Girl, intending to make light banter but instead found her eyes shifting towards her buxom breasts. After several moments Power Girl loudly coughed snapping Supergirl out of reverie.

"I was just saying thanks for your help" said Power Girl, slightly irritated.

"It's- it's no problem" stammered Supergirl, her eyes once again falling to her tits. Before she could stop herself she blurted out "What's it like to have tits like that?"

She blushed and hid her face in embarrassment at Power Girl's disgusted look. She then rolled her eyes before answering "You sound like a man you know that?"

"Sorry" she squeaked.

"If you must know I only keep them because my skin makes it all but impossible for me to reduce. It's annoying, every man you meet treat you as nothing more than a sex object. And the whole eyes up here thing all the- ARE YOU USING YOUR X-RAY VISION?" she shouted causing Supergirl to jump.

"N-no" she lied hoping to Rao that Power Girl couldn't see her rapidly hardening nipples or dampening pussy.

She still looked at her suspiciously and eventually said "anyway it's a pain, trust me you're lucky"

"Yeah I see... anyway I've got to go" stammered Supergirl speeding back to her apartment and collapsing.

What was wrong with her? She hadn't ever felt like this before, and now all she could imagine was herself with huge gigantic tits. Something she'd never even considered before, but now she couldn't get it out of her head. Unconsciously her hand slipped between her suit as two fingers began to enter her pussy. She remembered what Power Girl had said, how everyone would start to treat you as some sort teenage fantasy, it shouldn't but now it felt SO HOT. Everyone staring at you, disrespecting you, thinking you were a slut whom fuck anyone over anything.

"OH RAO" she screamed as she squirted her juices all over her carpet. The brief relaxation made her blush with what she'd done, she had never orgasmed before, never masturbated either, she hadn't even watched porn. What was wrong with her? And why was she horny again already?

She saw that her computer was still on, rushing over to the computer she started to load up the first big titted porn site she could find. Immediately seeing the tits of the buxom actresses caused her to immediately squirt a load over her screen. She eventually watched hours of porn and some point no longer truely watching the videos only fantasying about her having huge, gigantic ridiculously large tits.

"Kara what are you thinking?!" she told herself "you're a superhero what would the justice league think. You'd never even be able to get surgery"

Rao was that the time? How long had she been watching this? She eventually worked her way to her bed, and rested on her sheets. Hopefully sleep would help her overcome this werid fetish.