Karin wasn't sure why, but she found this extra pudge very enticing. She took her slightly bulging belly in her still slender fingers, and squeezed it, enjoying the feel of the soft flab. It shook and jiggled on her palms, a delightful sensation. Perhaps if she could get a little heavier she'd have more to squeeze. Her fingers reached down to her balls, feeling them and judging their heft. They were larger too, and remarkably still swollen with seed, even after her last orgasm.
All that squeezing and feeling was causing her member to swell again, slowly but surely it was firming up. Her own fat was turning her on. She grabbed around the tip and squeezed, causing the head to puff up. Then she slowly pulled down, roughly squeezing her cockflesh. Then her hand slid up again, then down. Slowly and forcefully she yanked her girthy bit until it was fully erect, standing a solid 14 inches.
"Wow.." Karin blushed. She was turned on by the sight of her own dick, and that only made her hard-on throb harder.
She started jerking with feeling now. Quickening her pace and feeling giddy on the feelings of lust selling up inside her, it'd only be a matter of time before she came. The gurgling in her belly started up again, and her belly bloated at a faster rate than before. Her thighs started expanding as well, giving a wet slapping noise when her jerking hands smacked against them.
She fell on her back, the feeling of weight gain was making her sweat and pant while she jerked. Her cock hung near her face, and when she finally couldn't stand the gaining pressure, she came hard onto her own face. The thick cream completely coated her soft face and poured into her open mouth as she gasped for air.
Finally able to come to her senses, Karin stood and shook off her tipsy afterglow to examine her body. She had gained a considerable amount, a muffin top of flab and buttery thighs. To hazard a guess her weight clocked in at a beefy 135 pounds now. Her hands reached around her butt and felt the soft, squishy flab that now puffed up her butt. She lifted her flabby belly and slapped it against herself, eliciting a delightful wet slap. She was coated in sweat now, and reeking of lust.
The feeling was incredible. She had never felt so profoundly fat, disgusting and above all proud. She held her flaccid cock, which was easily nine inches without a hint of arousal, and stared at it with glee. This would be the beginning of a life of fat and fucking. But first she'd need a partner, someone to worship her enormous cock and flab...
Who would it be?