Rainbow Dash rolled her eyes as Scootaloo put the pink bow in her hair. It had been the only way to get the young mare to actually talk to her, and they needed to talk. In the course of a few weeks, Scootaloo, from the rumors she’d heard, had gone from one of the most promising fillies of her generation to… well, a whore. There were no ups and downs about it.

And what she wore now didn’t help. Scootaloo was in a rocking t-shirt, with some band on in, that was tight against her now massive chest, another thing she’d have to ask about, and outlined her erect nipples. It also showed off the damp spots on it where the mare’s milk had leaked through.

Similarly, she wore tight shorts that might as well have been a denim thong, and Rainbow blushed in embarrassment as Scootaloo sat down with her legs spread wide. It was the same sort of position Rainbow Dash was seated in, but unlike her, she could see small bits of pink poking out from the sides.

‘Oh, but how I’ve always wanted to bury my face into the-’ Rainbow Dash cut off her own thoughts, taking in a heated breath as her knuckles turned white. She wasn’t a pure mare, not in any sort of way, and now that her adopted sister looked like… this, it was impossible for her to ignore the desires she’d had for a good long while.

‘If the rumors are true, I could, like, show my loyalty to her and give her a good old round of fucks. Or maybe-’ Rainbow winced, hating her mind, unable to recognize her normal, lewd thoughts for those being influenced by the bow.

Scootaloo could though, and she stretched out, pushing her tits towards Rainbow as she tried to get comfortable on the couch she sat on. She then tugged at her shirt, frowning a little before asking, “Hey, mind if I get a bit more comfortable?”

Rainbow Dash, who was already feeling the heat of the magic coursing in her veins, but not noticing as her skin tight suit became even tighter, just waved the question off, mumbling that she was okay with it. She was pent up, and now cursing herself for it. She hadn’t been laid in weeks because of training camp, and had barely been able to get away to talk to Scootaloo today. She didn’t even have time for a good ol’ quickie with Spitfire.

Fwump.

Rainbow Dash, who was already a slut in her own right, looked up, saw Scootaloo without anything hiding her chest, and her own chest exploded. It wasn’t gradual like the other girls as pink lightning ran over her body. Her pupils turned pink for a moment, before three of the normal colors of her mane followed suit, matching the color of her bow. Meanwhile, her tits grew twelve sizes, going from nothing to twice the size of her head, while her ass stayed as perfectly toned as ever.

Discord smiled outside as he saw this unexpected result. She was an Element of Harmony though, as well as a whore in her own right. He lifted up her element to inspect it, watching it turn from it’s regular red, to a dark pink. Lust. The need for others.

Yes, this would be a sight to behold, and it meant the last thing that could stop him now died.

Scootaloo meanwhile, got to feel just how much Rainbow needed to show her affection for other’s body as she was tackled through the cloud couch, and onto the floor. The mare’s eyes widened as her body was brought from only slightly aroused, to full on on fire. Her mistress, mentor, and adopted sister now stayed above her, a practical goddess amongst mares, in only a ripped up Wonderbolt’s uniform that hid nothing.

She didn’t have long to enjoy the sight though, not as one of Rainbow’s hands jammed three fingers into her pussy. Scootaloo gasped from how rough it was, and whined as spurts of milk left her breasts. She only whimpered in ecstasy further as Rainbow Dash leaned in and began to talk to her.

“I was going to scold you. Tell you that sleeping around was wrong, but my god was I wrong! Oh how I was wrong! A little whore like you should be with everyone in Equestria, but first,” bringing their faces as close as she could, “with me, you little slut.”

And then, Scootaloo got the thing that even now meant more to her than any dick in the world. It caused her eyes to roll back, and her arousal to burst forth from her pussy in a geyser of a climax that continued to roll down her body as she found herself helpless to even fight against. It was all too much for her, but she didn’t want to fight it. Ever.

Not when Rainbow Dash was finally kissing her.

Rainbow Dash let Scootaloo go as she stood up, staring at her little mare as she panted, dazed on the ground. It was more than she could bare right now, or ever, and Rainbow lowered herself, squatting over Scootaloo’s face. She then panted out the only word she could. “Eat.”

Scootaloo eagerly got to work, the magics within her pushing her forward, trying to match Rainbow’s. Bolts of pink lightning though that wrapped around Rainbow as she got closer and closer to her own arousal drained her energy. Scootaloo didn’t mind though. This was a goddess, compared to a peasant, and she would give the succubus all the energy she needed if it meant pleasing her.

And so, Scootaloo barely stayed conscious long enough to get Rainbow ‘off’. The two would have time for more fun though, but for now, Rainbow knew this wasn’t enough. She didn’t want just a whore. She wanted to make whores out of the mares she fucked. To make them bend to her lust, and join her so they could all be happy.

She then turned around, smiling as she saw Discord there. “Hello, big boy. Ready for your life to get 20% better?”

Discord merely grinned, happy to see that Rainbow didn’t even suspect him, before stating, “Oh, you can’t fathom how much better my life has already gotten.”

Not that Rainbow cared. She might have been left more… intact than other mares under this magic, but her libido knew no bounds. There was no end to what she wanted, and she’d fuck anypony to try to sate it, not knowing that she’d never sleep again because of that search. Always pleased, but always wanting, but in the moment, as she rode Discord’s cock, losing what little bit of her left that cared about ever not wanting a cock, she was happy. Oh how happy she was.

Author's Note

Sorry for anyone turned off by the kind of dark end, it's just how I decided to go, as corruption isn't always only sexy and happy as other chapters have made it out to be. Not when it consumes the person's entirety.

Trust me though, Rainbow Dash will be plenty happy with all of this when/if she shows up in future chapters.