A good number of hours later...
Since they had started their marathon, Etna and Flonne had done nothing but watch their movies and stuff themselves with junk food. They were practically glued to the couch the entire time. All of their over-indulging and laziness had taken its toll on their bodies.
"Oh...well, that's the last one..." Etna said, mildly disappointed, as the credits scrolled upwards over the scene of the final movie. She threw the now-empty bag of potato chips she had lying on her chest carelessly over her shoulder. The floor itself was riddled with crumbs, empty bags and wrappers, and even a few soda stains.
"Aww, oh well. It was fun while it lasted." pouted Flonne.
"I'm kinda tired...I guess we should get some rest now?"
"That sounds good!"
Etna reached down beside her to pick up the remote and turn off the television, but to her surprise it wasn't there. "Huh? Hey, Flonne have you seen the remote?"
"You had it with you, right?"
"Yeah, I'm pretty sure I-" Suddenly, Etna recalled the remote's new location. After eating so much, the devil girl and the fallen angel had become incredibly obese, at least 500 pounds for each of them. For some reason, they did not seem very bothered by it.
Etna herself had grown mainly in the abdominal region. Her flat, washboard stomach had swollen and fattened into three flabby rolls that rested heavily upon her chubby thighs. Each roll was slightly pale in coloration, and riddled with stretch-marks and some cellulite. The demon was no longer flat-chested, although her D-cup breasts were still not very impressive (in her opinion). Her butt was very big too, about five times as big as originally. It actually felt a little good to Etna to be so gigantic.
With fingers that resembled plump sausages, Etna dug deep in between her top and middle roll, eventually pulling out the remote. Etna grinned, her chubby red cheeks and double-chin giving her an almost comical look. Etna pressed the power button, and the television shut off. Belching in satisfaction, Etna leaned back and closed her eyes to rest.
Flonne couldn't help but smile at how adorable her friend looked, so round and chubby and peaceful. Like Etna, Flonne had also gotten extremely fat. In contrast to Etna, who was a belly girl, Flonne's ingested calories had taken up residence generally below the waist, in her thighs and butt. Her chest was only C-cup, and her flabby 'little' belly was just in the makings of a second roll. Her legs, however, flared out nearly four feet across both vertically and horizontally. Her hips were as thick as tree-trunks, but as soft and jiggly as jello. Her ass was like a pair of beach-balls had been attached to her behind, It had sunken so deeply into the pillows of the couch that it would probably leave a permanent imprint of her gigantic ass for all to see. Flonne was happy that she was so soft all over; it reflected her kind, caring personality well.
Soon, after finishing off a tiny bag of luke-warm mini-donuts she found crushed underneath her ass, Flonne drifted off to sleep as well.