Being a shape shifter, Megan could easily morph herself into practically anything or anyone. She wasn’t as good as the other Martian superhero, but what Robin asked was pretty simple; just bloat herself until she’s huge. Still, despite being a piece of cake, Megan always found it fun to morph her form, and had a feeling that this was going to be extra fun.

Robin looked on intently, knowing that if he blinked he would miss it. However, he then saw a swell slowly forming in Miss Martian’s stomach and it kept on growing, like someone was filling her with water. It stretched her top, a perfect sphere getting bigger and heavier, and soon the rest of her body began to join in. Megan poked her tummy as she felt it getting squishy as she gained weight. She had actually decided to take her time with this, having never taken on a plus sized form.

Megan felt her breasts go up several cup sizes, making two more round bulges stretching out her costume as they oozed out to rest on top of her growing belly. All of her limbs grew thicker as more and more fat piled on, and her face and ass rounded out, with one pair of cheeks definitely getting bigger than the other. One interesting thing Megan did was keep her entire torso equally proportioned as she grew, making herself look perfect round where ever she was clothed. Her hips jutted out, growing wider and wider, and she actually moaned lightly and cutely as she kept on fattening up. Robin was then stunned when he noticed that as she was growing wider, she was growing taller to. Megan was already taller then him, but now she was bloating up into a mammoth sized Amazon. Even Wonder Woman wasn’t this big.

Finally she was done and Robin’s head only reached to underneath her now E-Cup sized knockers. Megan sighed deeply and then cooed with her eyes closed as she ran her hands over her soft and expansive tummy. From the boobs down, she looked like one big ball and her costume hugged every inch of her figure. Her hips were a little wider than the rest of her, and her rotund rear end was just barely hidden by her skirt which clung to her so much, it made Megan look like she had a blue rump instead of a green one. Her legs were giant trunks of blubber, each thicker than Robin’s waist and having many rolls were big enough to hold things in. Her arms were so thick, and her chubby cheeks made her look even cuter than she already was. Megan then squished her into the side of her belly and watched it squish down into the blubber below, loving how it felt.

“Oh wow, I look so fat!” most girls would be very upset if they ever uttered those words, but Megan spoke with a big smile on her face. Her smile made Robin do the same, happy that his fuck buddy was just as pleased with her form as he was. He had asked her to get fat and she delivered. He was starting to think she was becoming a tease though when she kept on rubbing her hands along her belly and down her sides and all over the rest of her, patting herself and making it jiggle before saying “And I feel fat to.”

“I can see why, but don’t you think you would look better if we could see all of your fat?” Robin suggested. Megan suddenly slapped herself on the side of her head “Hello Megan!” Realizing she hadn’t even gotten undressed, she quickly made her costume vanish into her skin, getting an even better look at her body.

She happily gasped as she saw herself for the first time in the buff with several hundred pounds added on. Once more she stroked her tummy, never tiring of feeling her blubber in her hands. Megan had meant what she said earlier; even someone with enhanced strength can feel when you gain so much weight, and Megan felt so huge and bloated, and she loved it all. She was also so squishy and felt so warm now.

From beneath her, Robin was busy eyeing her tatas, seeing that even her nipples her grown. Two dark green tits, a little smaller than a shot glass were just begging him to put them in her mouth. The thought of just trying to get his hands around those hippo hips, even though he knew he’d fail, enticed Robin so, as well as the thought of those huge thighs wrapping around his face. Again, he’d likely be crushed, but it would be worth it.

“My belly is so huge.” Her voice brought him out of his ogling, and Robin smiled up at the Martian girl. She sounded so adorable, like a little girl that was going gaga over a puppy, but Robin knew that behind all that cuteness, loins were burning. However, said loins were now hidden behind a whole lot of fat, and two slabs of it were then shoved in his face when Megan spun around “And look at my butt! I’ve got the biggest booty around.”

“Oof!” said booty slammed Robin right onto his, but the fall did nothing to kill his mood, only making his cock throb even harder. Just feeling that blubber butt bounce into him felt just like he always imagined it would, making the already randy Boy Wonder even hornier. Miss Martian had to stretch her meaty and almost nonexistent neck out a bit to see Robin behind her butt, but she did and said “Oh my gosh, I’m sorry.”

Taking a page from his mentor’s book on scoring with super babes, Robin just flashed her a cool grin and said “Don’t be.”