“Would you rather-”

“-My cum make people curvier and healthier or not?”

“You can’t ever be too healthy, sweetie.”

She doesn’t even question the expansion when the cum in her belly causes her already voluptuous figure to increase in scale. It seems the growth is proportional to the amount of cum as well, since she only had your first load, her body only grows enough to increase her bust about a cup size. Her hips and rear don’t quite get the same treatment. The light pudge on her belly remains unchanged entirely. Your stiff member stands proud in your grasp, the fist holding it aggressively pumping up and down.

Your mother looks on worried.

“Sweetie, was mommy’s mouth not enough? Do you need some more?”

The offer is tempting, but the deviant within isn’t nearly satisfied.

“One more question, mom. Would you rather I be able to control if my cum can make someone pregnant or my cum always make someone pregnant?”

“I don’t want any of us not being able to take care of you for a full pregnancy, hon. It wouldn’t be fair to you. You choose if you want us pregnant.”

“Fair enough, mom. Okay. I think I’m ready for something else.”

She sits closer, ready to help in whatever way she can.

“Could you please let me throat-fuck you a few times. I wanna get bigger before I do anything else.”

“Sure thing sweetie. How would you like me?”

“Can you lay on your back on the table?”

She nods and begins to clear the table, setting whatever food remains on the kitchen counter along with every bit of silverware and the napkins. The only thing that remains is the tablecloth. She climbs up from a chair and slowly rolls onto her back, her huge behind spreading to the sides and her breasts smooshing slightly against her chest. Her head hangs over the edge, an open mouth and hungry throat awaiting your erection.

Lacking any sort of hesitation, you stand and guide your cock into her maw, planting the base against her chin. Your heavy balls smack gently against her eyes. She’s taken you more easily than before. Good thing too. You aren’t in the mood to wait any longer.

Pulling out to half way, your hips slam forward, making an audible slap when your balls bounce off of your mother’s face. She doesn’t react, letting you have your pleasure. Her body jiggles before you after every thrust. Not wanting to let the ravishing view go to waste, your hands grope the full breasts, still confined by that beautiful, blasted sundress.

Thirty thrusts in and you need to cum again. But, your mother has already accepted your load happily once, right? So why not again? It’s only twice as much. That can’t be too much can it?

The amount is exactly twice as much as before, and just as her choice had been stated, since you only came in her throat, your balls have to double in size once more, bow four times the size you’d started with. But that isn’t enough. You want to fill her. To breed her. But for that you need some very big balls. She’ll just have to help you with that. It only takes so long.

Eight times.

Sixteen times.

Thirty two times.

Sixty four times.

One hundred and twenty eight times the size you had started with, your balls now drag on the floor, bloated and pulsing with seed. Your cock is bright red and still throbbing, waiting to blow that final load. At this point your mother has been filled by so much cum that her body has begun to collapse the table. Her breasts are so large her cup size has to be chevy truck-bed. Her ass could be used, not just as a shelf, but as a California King sized mattress. She’s grown taller and more muscular, but only to be able to move with her curves. That once barely-there pudge on her belly is now a thick layer of cum-fueled fat that gives her the outward appearance of a fertility idol on crack. This last load has to go in her sopping cunt. It has to. But your balls have grown so heavy that they won’t allow you to move.

“M-mommy, I c-can’t walk. My balls are too big. They h-hurt. I-I have to c-cum ag-gain so badly. Help, please.”

This pathetic, lustful plea is more than enough to spur your mother to action. The pain in your voice from lack of release sends her into a motherly overload. In a flurry of movement much too hasty to have been convenient for someone of her size, she has:

1. Smashed the table to fragments

2. Flipped herself around so that her freshly naked pussy is exposed to you

3. Wrapped you in her thighs while slotting your chile-pepper red dong into herself.

The display alone is beyond erotic. Your pleasure addled mind barely registers what she says next, but when it does, you have to do what she says.

“Mommy’s here, baby. Cum inside her.”

Then you do.

A moaning flood of semen and lust spews from your buried cock, finally draining the mammoth pair of testes between your legs. And all that cum has to go somewhere. Why not your mother’s womb. Enough seed to spill over William Howard Taft’s custom bath tub is pumped into her and she takes it gratefully.

The following expansion is enough for one to question your sanity when creating your own questions. Your mother’s curves spread so rapidly and heavily, that by the time you finish emptying those once titanic testicles, she now stand where your house used to be. Imagine a house sized woman still wearing one of her famous sundresses. The thought would be enough to get you hard again were it not for the but you just busted.

Horndog.