She can't get enough

Kara couldn't helped but feel slightly ashamed at what she was doing. She was going to change her body to some kind fantasy object, for what? Her whole body would **** into nothing more than a horny fantasy for teens. A hot, sexy fuck toy with huge tits. It was at that thought that she clamped a hand over her mouth to prevent herself from screaming in ecstasy. Hopefully no one noticed as she walked into the enhancement clinic. Disguised in an oversized hoodie as well as long cargo pants. In her bag she had her Supergirl custome, a measure she had taken as villains could attack at any time.

When she approached the secretary she was immediately sent her sent to one of the patient rooms. Timidly she knocked on the door followed by a "come in"

There were two people in the room, one a man of ordinary appearence and a woman in a lab coat whom seemed to be a living embodiment of the buxom model Jessica Rabbit. As she entered Kara prayed that neither her hard nipples or her soaking wet cunt couldn't be visible through her baggy clothes.

"Hello Kara I see you found the place okay" said the man " this here is Scarlet she'll be the one whom will oversee your enhancement"

Too embarrassed to say anything Kara just nodded unable to take her eyes off Scarlet's tits. "Now before we begin are there any medical conditions we should be aware of?"

Kara froze, she hadn't considered that her Kryptonian physiology may have an effect on the procedure, should she really continue? She shouldn't risk her secret identity just for some big tits should she? Really big luscious tits... Fuck.

"Erm I have got something but you have to promise you won't tell anyone" she murmured.

"What is it?" asked the man, seemingly amused for some reason.

"I'm actually a Kryptonian that's probably going to be a problem isn't it?" She said, what was left of her rational mind was already praying that it would be an issue to prevent her perverted mind going through with this.

"A kryptonian? You must be Supergirl. Don't worry it won't be a problem except that your costume may not fit afterwards, but if you wear it during the process than it will expand to the correct proportions" he explained, causing her perverted mind to dance with joy.

"Okay" she said, using her super speed to quickly find a room and dressed in the costume before flying back.

When she arrived she was instructed to lie down on what locked like flat hospital bed though with a massive machine underneath. She nervously looked towards the two as she pondered whether she wanted to go through with this, but then her eyes fell on Scarlet's tits and her perverted mind cleared all doubt.

"Now you may feel certain feelings, feel free to express those as you want" said the man.

The machine turned on and suddenly Kara felt the (recently) all too familiar feeling of her cum leaking from her pussy while her nipples hardened. Unable to resist, her hands slipped into her pussy while her handsbegan to massage her growing tits. It was a surreal experience to feel her breasts expand outwards and grow, as if someone were blowing up a balloon. A really sexual balloon. As they increased she could feel herself build to all new levels of arousal, until finally she climaxed harder than she had ever seen a pornstar cum. She was ectasy heaven.

Then it stopped, she got up and looked herself in the mirror and was instantly disappointed. They were bigger sure, but not to the cartoonish level that she had so lusted over.

"I'd thought they'd be bigger" she pouted, the fact that her tits had added at least another cup size hadn't done anything to quell her lust. In fact it had only made her more ****.

"We only do moderate changes for free, if you want more you'll have to do is a favour, otherwise you'll have to be content as you are" said the man, a wide grin on his face.

In desperation the superpowered Kryptonian crawled over on her knees "NO please please continue. I must have bigger tits, please I'll go anything you want"