Alrighty, here's mah Snippert, since ye bahleeted it by accident: This is set in the EQG universe, where Twilight messes up on a spell, where she and Sunset Shimmer inflate into massive, horny and nude blimps. Much clothes ripping, followed by some puffy foreplay and other kinky antics (breastfeeding and motorboating)

“What the - “ Twilight glanced down at her stomach and blanched. “I, uh, don’t think this was supposed to happen.”

“Speak for yourself!” Sunset Shimmer had her hands on her waist, which was now widening with each passing second. “What the heck was that supposed to even do?”

“It was - “

Twilight found herself cut off as her air supply suddenly went short. Glancing down, she found her growing, swelling bust pushing hard against her blouse. Each of her knockers was easily the size of a watermelon, and the fabric of her shirt felt a little wet besides. She grunted, struggling to breeze against the tight blouse. Between her massive breasts, a single button quivered. The blouse was straining, about ready to pop.

Sunset Shimmer wasn’t having a much better time of things. Her hips and ass had expanded so much that even the track pants she’d thrown on were struggling to contain them. The elastic waistband groaned audibly as it was stretched longer and longer. It wasn’t long before her gut started to swell as well, her belly ballooning out to join her massive, expanding hips.

With a cry, Twilight lost her balance, as the sheer size of her growing boobs pulled her forward. She landed with just the barest of grunts, though, her suddenly enormous belly taking most of the brunt of the falls and spreading the shock across its surface with a series of jiggling, bouncing waves. The impact finally did her poor blouse in, and not one, but three of its top buttons snapped off and went flying into the air. Twilight just groaned, now teetering around with her stubby arms spread wide across her gigantic, growing belly and bust.

Sunset moaned. As the spell went to work on her privates, she was finding it harder and harder to feel uncomfortable about this situation. In fact, she was becoming more and more comfortable - at least in one respect. Had her stubby limbs been able to reach, she would have had her fingers stretching her clit wide and rubbing madly; as it was, she settled for moaning some more and rocking back and forth on her gigantic balloon of a body.

Giggling and moaning madly, Sunset found herself rolling on the floor. Her mouth bumped right into one of Twilight’s massive, swollen tits - and, upon feeling a steady stream of milk pouring from the oversized nipple, Sunset happily opened her mouth and began to suck.

Now Twilight was the one groaning, twisting back and forth with her fat, blown-up hips as Sunset went to town. As Sunset greedily gulped Twilight’s milk down, the two blimplike girls began to swell again, their busts, asses, and bellies growing larger and rounder, and larger again.

With a final, groaning rip, Sunset’s pants tore right down the length of her right leg. The sheer size of her waist and thickness of her “legs” was just too much for them to hope to contain. With a satisfied smirk on her face, Sunset just kept sucking on Twilight’s tit.

Maybe if she did, she could get even bigger.