Sibling satisfaction

Kary is balls deep in your ass when she gives you another load. You have been going for hours now and Kary’s mind wants to keep going but her balls and belly have both shrunk smaller even than when she arrived. You pull off of her and she wobbles in place.

“I feel light-headed...” Kary says weakly. She smiles as you stand up and your breasts tear apart the fabric as they try to accend and instead rest heavily on your pregnant belly. Both breasts and belly stick out at least 6 feet from your body but are firm and don’t sag.

“Whoops, I guess it couldn’t handle my boobies,” you state as you peel the rest off.

“We made quite the daughter, bro. She is going to be massive.” Kary hugs you from the side, your breasts pressing together and rubbing pleasently which causes yours to leak milk.

“Let’s call her Kerry,” you laugh.

“You are so dumb, but sure! I wonder if she will take after me as far as cock size,” Kary ponders.

“Or me for curves,” you ponder. “I hope we are both right. I would love to be in the middle of a shemale sandwich with girls like us.”

“We don’t have to stop with just one, you know. I could knock you both up, or Kerry could inseminate you, if you think that would be hotter.”

“Wow really, how quickly?”

“As soon as she is born. I told you she would be a fully matured eighteen year old. Give her some time to fill her balls, of course. Also, we will need to be fed again,” she mentions. “When’s dinner?”

You wobble with your new front-heavy body over to the kitchen. There isn’t a lot left. You will need to restock.

“Kary you ate it all! We need to go get more, but *someone* made it so I can’t fit in my clothes.”

“Oh yeah? Wonder who? But it’s OK, I can make you more. Let’s pick out a design, maybe with underwear this time?” Kary eyes you.

“If you want to see your pregnant brother model underwear for you, you don’t need an excuse,” you say coyly. “I’ll model whatever you like...”

Kary smiles at that, a little taken aback. She ponders for moment, her dick rapidly hardening. She blushes.

“Anything I like?”

You eye her excitement. “Anything you like, and I expect it is going to end with my sister’s dick spreading my cheeks to the max again,” you say huskily.

“I’ll get straight to work!”

Kary scurries off, less encumbered by her weight than before, while you feel yourself growing heavier.