As Jen milked herself, she was completely oblivious to the changes on her body. Her body has expanding with fat; Her stomach and utter began to push outward.
The bathtub she was in began to creak with all her new weight. Jen's face became chubbier and rounded out, while her butt began to swell larger, to the size of basketballs.
She also began to pack on muscle on her thighs to support her larger frame. She was getting close to 800 pounds when she noticed the shaky behavior of the tub.
"I should probably get out before I break it."
Jen still felt full of milk, and decided to go outside to the barn to milk herself in privacy. Naked, she waddled outside to the barn to let her changes take over. Her breasts grew larger and her body became stockier, getting her close to 1000 lbs of Jen. She nearly finished milking her breasts until she felt some more changes...