Toriel was sleeping on the sofa.


SNORE

She spent hours reading until sleep overtook her, leaving her large MILF body there.

SLAM

The door burst open. But she remained fast asleep.

The one who had entered was Monster Kid, with a monstrous penis that lived up to his name: bigger than his own body, veiny, throbbing, very thick, and dripping pre-cum in puddles. He used it to kick the door open.

As soon as he entered, his strong smell began to spread throughout the house. Not even a minute had passed, and every part of the home was already impregnated with the smell of his penis and balls.

From the entrance, I could hear SNORE, and I knew where to go.

SNORE

The sexy, fuckable MILF was snoring with her mouth open, the perfect position for the boy.

THRUST

Monster Kid pushed his penis into Toriel's mouth, who finally woke up, but it was too late. CLAP CLAP CLAP CLAP CLAP CLAP She couldn't do anything against the boy's monstrous penis.

His big balls hit her tits under her clothes as the MILF's stomach stretches. CLAP CLAP CLAP RIIIIIP Toriel's clothes tear as they can't stretch as much as she can.

CRACK EEEE POMP

The sofa can't withstand a single minute of this wild rape and breaks. Monster Kid remained in almost the same position standing on the carpet, but now Toriel was on the floor, at the height of the boy's crotch.

CLAP CLAP CLAP SLURP SLURP SLURP

And the sexy, fuckable goat mother was fucked, filled with semen PUMP PUMP PUMP, pumping semen into Toriel nonstop.

PUMP PUMP PUMP

PUMP PUMP

PUMP

Toriel's mouth was full of semen, and the boy pulled out his penis as he took a few steps back.

CLAP CLAP CLAP

The sound continued even though Monster Kid had stopped fucking her. It was the MILF's fat ass, so big and fat that it kept pissing from all the action before.

Seeing that fat ass was the perfect reason to continue.

RIIIIIP CLAP CLAP CLAP CLAP CLAP

The boy went behind the goat mom and pushed his penis, tearing her dress even more as he shoved his dick into the MILF's ass.

More CLAP CLAP CLAP now with his balls slapping Toriel's ass, making it wiggle even more.

GHH OGH UHG

Toriel's mouth is free, but not to call for help. Instead, the Clap CLAP CLAP and the semen coming out of her throat with each thrust only allow her to make moans slightly mixed with gagging.

CLAP CLAP CLAP and by the time Toriel was barely naked, SLURP SLURP SLURP, another load of sperm was now inside her fat MILF ass.

With her ass and mouth full of a boy's semen, Toriel was abandoned in her house in that state.

BLUSH SPURT GGHHH

But her loneliness did not last long. From her mouth, a virile member came out of nowhere. She saw and felt firsthand how a penis of the same color, length, and thickness as the one that raped her not long ago came out from inside her.

THRUST THRUST THRUST

This penis also continued to rape her from inside, entering and exiting her mouth, smearing presemen on the carpet.

THRUST THRUST THRUST CLAP CLAP CLAP CLAP CLAP

Another penis emerged from Toriel's fat ass, which also began to rape her from her anus outwards.

Just like before, the sexy, fuckable mother goat could do nothing but receive against her will.

THRUST THRUST THRUST CLAP CLAP CLAP SLUPR SLURP SLURP

And as was obvious, after a while of raping the MILF, both penises came, shooting their semen against the walls, the campfire, and the sofa, further expanding the pool of semen around Toriel.

Once the sperm shots were over, Toriel could feel something moving out of her, and just as the monstrous member stretched her mouth and anus, both holes stretched much more as these beings exited.

What Toriel sees is totally surreal. It's the boy, Monster Kid, who came out of her mouth after fucking her from inside.

But he wasn't the only one. The one who fucked her ass turned around to face her so that the bitch could see him. It was Monster Kid again. In front of her, there were two naked Monster Kids. (It doesn't make much difference because the original is only wearing his shirt). Being raped, lying on the floor, seeing this was a heavy blow to her mind.

The two boys began rubbing their penises against each other, masturbating in the absence of arms to jerk off. For more pleasure, they hit their balls against Toriel's face.

CLAP CLAP CLAP

Until after a while, they got what they wanted, SLURP SLURP SLURP covering the goat with their semen.

Both inside and out, Toriel was covered in semen from head to toe, not a single inch left untouched.

The boys left, but again, this was not the end for Toriel, or well, technically it was.

The sperm on her began to be absorbed into her body, quickly disappearing into her fur. As soon as that was over, her fur began to fall out, revealing her skin, which was yellow.

From her back, a row of spikes began to emerge, her mouth turned inward, leaving her with a flatter face, losing that goat-like appearance. Her horns fell off, her ears shrunk, and her tail grew.

SPLUSH FLUSH PUSH

The semen inside her fat body began to flow out with more force, until she was completely empty.

When it was all over, there it was, a fourth Monster Kid. All the semen inside and outside transformed it into another child with a giant penis, eager to fuck anything that moved.

As soon as the child who was once Toriel left his house, he ran into a careless Froggit, who after much CLAP CLAP CLAP ended up filled with 5 loads of semen, and that same afternoon, another 6 Monster Kids appeared.

As if on cue, the children continued to reproduce, either by raping someone or transforming them with their semen.

This plague spread throughout the underground. Some were able to escape, but most could not flee, even though the strong smell of penis and testicles warned of their presence from afar.

Some were able to try to do something, like Alphys. CLANK CLANK CLANK At first she made machines to masturbate the children, but it wasn't enough and they started fucking her when all the machines broke.

Others didn't even have time to protect themselves, like Undyne. She didn't try to fight back 
because, being a Monster Kid, she didn't see the danger until it was too late.

Muffed was knocked out by the strong smell of Monster Kid's balls, so when the children came to her, she was already on the ground, ready to be fucked.

Asgore tried to talk to them, but his mouth was silenced by four penises at the same time.

Being a ghost, Napstablook couldn't be raped. They tried for days until he decided to leave.

All the dogs in the patrol were fucked and transformed one by one.

The village of Temmie was razed, leaving only puddles of cum.

As the week went by, the only person left in Hotland was Alphys herself. They didn't cum on her, they kept her as a sex toy to fuck non-stop and fill with sperm. A living birth factory.

Mettaton and the two Dummys, unable to be transformed, were also turned into living fleshlights.

CRAAAAAAAAASH WUUUUUUUUSH WOOOOOOOOOOM

Over time, the underground became so full of children that the barrier broke, unable to contain such a large population, unleashing this apocalypse of children endowed with almost infinite sperm throughout the world.