Button Mash's weird, fetishy origin

"Look dear, he's old enough to speak. By my count, he's far too old to be sucking at his mother's nipple.  I don't want him to grow up soft." The motherly pony stared at her husband with a pained look on her face. "But… my cutie mark! And he loves it so much! You know how he hates bottles!" The bulky stallion turned to look out the window. "What of HIS cutie mark? Would you have him growing up with something hobbling and lame like a book or -Celestia forbid- video games? I won't have it. He's going to be a strong and productive pony and that's that. I'm putting my hoof down."

The mare, now choking back tears, struggles to speak. "That's it then?"

 The stallion nods, "That's that."

"We can't discuss this further?"

"What is there to discuss? He can stay on the bottle for a while longer, but we have to ween him eventually. I suppose we can get you a new pump until then."

The mare shuttered, remembering how she broke her last pump in a fit. She simply couldn't stand the cold, mechanical thing. With a new determination she took a deep breath and lifted her husband's hindlegs. "I'm sorry, but that's not how it's going to be."

"Just what do you think you're doing? Put me down this instant!"

"I'm going to feed our son the milk he loves, and you're going to help me."

Opening her mouth wider than she thought possible, she found his legs sliding down her throat far easier than she expected.

"Stop this at once!"

As she got to her husband's ass, she briefly regretted starting from the rear. Sure enough, with a deep gulp that passed too.

"Darling! Please!"

The mare felt her belly touch the carpet as more of the stallion disappeared.

"You can't do this! I demand you spit me out at once!"

His cries of protest were finally silenced as the last of his muzzle slid in to the darkness. With a loud burp, the mother rolled on her back. Looking over her distended, bulging stomach, she could see hear teats had already begun to swell. It wouldn't be long now before the pressure would be too much and the leaking would start.

"Honey?" She yelled for her child "I need you to bring mommy the phone right away. "

There's a soft kick in her gut while she waits for the response.

"Okay mom!"

She feels a few more kicks before the little colt finally opens the door, dropping the phone as he gasps at the sight.

"Mommy needs to make a very important call. Please bring me the phone, then you can have some milk."

"Yay milk!"

 

She knew there was only one number she could dial to get someone to help her out without asking too many questions.

"Anon? I need you to babysit for a couple of days, my husband and I have had a domestic dispute."

"I'll do it for a glass of milk"

"You'll have to skip the glass, but you can have all the milk you can drink. Bring some books or video games or something to keep him entertained."

"I'll be there in five"

"The front door's open, please hurry"

 

"Knock knock!" anon yells as he enters the house. "We're in the bedroom" comes the muffled reply.

"I don't really have any kids books, but I brought my old conso-"

Living in Ponyville, the human had gotten used to seeing ponies in unusual situations. That's why he was able to gently set down the cardboard box instead of dropping it outright upon seeing a massively bloated mare, her swollen, dripping teats and her child passed out in what appears to be a milk coma.

"W-what?" was all he could manage.

"Could you be a dear and put me on the bed?"

 

A bit of heavy lifting later, and anon was rubbing the mare's belly while she sighs with relief. Feeling a kick, he pulls his hand back. "Wait, is this… him?"

"He didn't want me to nurse my baby any more. I had to put my hoof down."

"Huh. That's why you're in milky overdrive?"

"Yeah. Speaking of, I hope you're thirsty because it was too much for the little guy and the pressure's getting to me"