Gotta feed the need!

Kary is on her sixth box of pasta when she finally looks up. “How much more are you going to feed me? Look at my belly, bro...it’s huge and taut. You sure you want to keep feeding me? I can’t let any go to waste, I’ve gotten into such a bad habit while I was away.”

You open another box of pasta. “There are still 10 boxes left! You aren’t going to quit on me now, are you? I need my little sister to have plenty of energy!”

“Your little sister is going to have trouble fitting her growing cock in your ass if you keep this up,” Kary reminds you. “Not to mention how awkward it is being so fat.”

“Your ‘fatness’ is only in the parts that I like getting fat. I don’t think I see a downside here, Kary,” you giggle and serve her another plate.

She smiles. “When you have a big round sister, I guess I will be unable to fight off your advances. I’ll be completely at your mercy,” Kary trails off.

“Unless you, ahem, fill me up again,” you remind her, “in which case *I* will be at *your* mercy.” You deal her another plate.

Kary shrugs in agreement as she continues to eat what you serve her.

————————————

A few hours pass as you cook the remainder of the pasta. Kary’s belly doesn’t sag like yours, but instead grows out and to the sides, maintaining a perfect half-sphere shape. Her creamy white belly skin pushes her breasts up and apart as they roll off to the sides. For your part, your belly is back to it’s dad-bod shape. The rest of your form has taken the estrogen from your sister’s cum and put it to work. Your hips have doubled in width since the earlier growth, your breasts seem to be happy at EEE as long as they get to drip milk every few minutes. Eyeing your butt, it appears like two airbags went off. The cheeks literally swell out wider than your hips. Your thighs look more muscular, but they are still larger too.

Kary eats the final bite, and she starts visibly swelling as if she had to wait until the meal was complete. She watches you move around next to her to watch her growth spurt. She strikes a pose like earlier, to show you as much as possible at your angle. Her cock even grows a couple inches longer and thicker.

“Remember last time, bro? You dropped to your knees and couldn’t get enough of your little sister’s big dick and cum. How does *this* make you feel?” Kary gestures to her swelling body. “Are you happier with me now?”