Thousands of hyperendowed, multi-genital herm-beasts crawled into the room, led by Sonic, Tails, and Shadow. The beasts were all terrifying on their own, but the original three stood out.

Sonic stood at eight feet, bipedal now. His cock count had tripled from its seven, giving him a terrifying twenty-one cocks, all eight feet long and a foot thick, each constantly drooling a small waterfall of precum. Underneath, his scrotum was gigantic, sitting at a 10 foot diameter, filled with several testicles. His pussy had grown, now capable of taking all of his own members at once up to about half of the shaft, if he could get them there. His breasts were so huge a normal man was smaller than one of them, and they were constantly gushing out infectious milk.

Tails was twelve feet tall, and well built, to support his ten thick, long, and veiny cocks along with his gargantuan scrotum, which was filled with what appeared to be well over one-hundred testicles. His breasts had also enlarged, making him lactate constantly, and his vagina had gained a clit so large it never stopped making contact with the scrotum. The fox-beast could literally cause orgasm by wiggling its hips to slide the two organs across each other.

Shadow was a mess, standing at 7 feet, her five sets of breasts so large they could make Sonic jealous. They constantly blasted milk out, enough that the room was already beginning to fill up. Her cocks had grown, and more had formed, giving her eight. She had also gained two more pairs of testicles. Her pussy had grown inside to take the entirety of Sonic's massive members with ease.

Espio and Sally stayed where they were, terrified.

One beast began to masturbate, and quickly brought herself to orgasm, launching cum far across the room.

When it splattered across the two remaining regular Mobians, they accidentally swallowed some, and the effects already started.

There were no physical changes, but the two had already become uncontrollably horny.

The herm-beasts all drew forward, Sonic grabbing the princess as Tails grabbed Espio. They immediately began fucking them, various beasts making them take it up the ass, the pussy, for both of them, now, and the mouth. Various cum eruptions forced the two to quickly evolve, soon enough both almost matching Sonic.

Sally was now taking all of Sonic and Tails' dicks inside her pussy as another creature took her ass with well over six cocks.

Espio was in a similar situation, but he was also being breastfed with Shadow's milk.

Finally, after hours of stimulation, Tails, whose cocks seemed to have been numbed by transformational effects, came. The pressure literally forced Tails away from Sally and to the ground as cum continually erupted. The blasting had gone for several minutes, quickly flooding the castle with his thick, white, and infectious sperm. It wasn't even able to pour out of the windows fast enough to stop filling the room.

The beasts all took to drinking and swallowing the cum, growing larger and larger. But soon enough, it was too much for the castle to take.

The building smashed open, a flood of cum coming out in a wave and spreading over the city. Any Mobians that had managed to remain uninfected had lost their luck as waves of cum went over them, entering their systems.

Eggman was floating in his eggmobile, watching the events unfold. A grin played across his face as he held a shrunken down variation of the Lagneía Emerald.

"Perfect, an entire race under my control. Letting Sonic go was the best thing that could have happened!"

He lifted the gem, and it pulsed, a wave of energy launching out. As it passed by the herm-beasts, they all turned to the source.

"Congratulations! You are now under the control of I, Dr. Ivo Robotnik! You will do whatever I order-"

Eggman moves aside as a jet of sperm launched past him, fired by someone below.

"HEY! WATCH WHERE YOU'RE AIMING!"

The beasts seemed unapologetic, and when they realized he was done talking and had instead floated off, grumbling, just went back to fucking each other.

END

So what did you all think? This was my first lemon, fan fiction, and story in general, and I'd like to know what I did wrong and right.

And please, no "ew herms are gross" or similar. If you didn't like hermaphrodites, why did you read?

But again, please review with advice on how I can improve my storytelling.