“Well now cousin Babs, I hope this works for ya. I plum don’ know how this growth thing of yours has happened.” AJ waved her hands at her giant cousin who had gone from being a slip of a mare to towering over her. “Eh, ferget about it, Cuz.” Bab’s shrugged. This sent a visible jiggle underneath her shirt. She turned to look at the little house the Apples had built for her. “It’s perfect. Isn’t that right, Anon?” I lifted my eyes from their current level at Babs’ huge, thick thighs. Each swollen trunk was as wide as my shoulders. “Uhm, yeah. I mean, it’s not like anyone can predict a growth spurt.”

She smirked at me keeping her secret from her cousin. It thrilled her that I was willing to lie to the AJ for her. She probably still had a thing because I’d had a crush on her cousin first. Babs lifted her left hand and lightly palmed and jiggled her huge left tit. Despite her clothes being recently made by Rarity to fit her enlarged frame, she had already outgrown them. “That’s right, I’m jus a growin’ gurl. Not like I can help it or nothin’.” She grinned at this and over the enormous curve of her chest I saw her eyes twinkle with arousal and mischief. Unable to help becoming aroused myself, I shifted away.

After that day when I’d given in to her advances, Babs had told me everything. About sneaking into Twilight’s palace. About stealing a heart’s desire spell, which she had then cast on herself. How she had wished to become “too big for even Anon.” I was the reason she was still growing bigger and bigger. Because as much as I liked this giantess Babs, I couldn’t help imagining her bigger still. Every new inch just made it so much better and I couldn’t help thinking how it would be great if she was even bigger! Hey, I like ‘em big.

Babs continued, “Yeah, I’m probably going to grow even more AJ.” She winked down at me as AJ wiped her face off.

I think she might love her growing into a giantess as much as I do.

Later that week, we were on her new bed in her new house. Bab’s had continued to grow as the Apple’s finished it. Even with her laying on her stomach, I was only barely taller than her impressive ass. Her tail wagged back and forth as I placed my hand on the huge hills of her butt.

“Well, Anon,” she said as she looked over her shoulder at me, “Ya just gonna tease a gurl or are you gonna do somethin’ already?” I looked at her, questioningly. She had long outgrown my ability to please her with what I packed below the belt. Did she want me to stick myself inside her or was she asking for something else?Apparently I had taken too long to answer, because Babs reached back and lifted me effortlessly onto her ass. I found myself wedged into the crevice between her large, juicy cheeks.

I felt their warmth as I sank in. With a giggle, Bab’s wiggled her cheeks causing them to jiggle and bounce under me erotically. Unable to help myself, I grabbed ahold of her ass, hugging as much as I could. Lost in the feeling of all this flesh and Babs smell, I started to dry hump against her.

Babs was pleased with my reaction. “Hmmm, you like my big, fat ass don’t ya?” I didn’t respond to her. “I like it too. I’ve also liked this game of ours. But, I’m finally at the point were I want to hear the words, Anon.” I slowed a little, my thrusting motion light and unconscious. “Uh, well. I love you Babs.” The giant mare barked out a sharp laugh. “Oooo, teehee. That’s adorable. I love ya too, squirt.” She turned her head and looked past her tail at me. “But that’s not it. I wanna hear, ‘Babs you’re too big,’ Anon. I want you to admit I’m too much for a little squirt like you.” I mockingly glared back at her and defiantly started thrusting hard into her crack. “Never!”

I heard her let out a vaguely evil giggle. “Alright Anon, we’ll see how long that lasts.” As she finished talking, I felt the warm flesh beneath me expanding. I could no longer hug her wide bubble butt. She let out a low moan. Growing was alway pleasurable for her. I firmed my resolve. This was great. No way would she get too big for me!

I heard the bed frame start to protest. It groaned and suddenly collapsed. As we hit the floor I found that my body was now wedged into my Marefriend’s growing crack! I pulled and struggled but could not get out. I was stuck in-between Bab’s butt cheeks and was too weak to get out. I gasped as the pressure and heat increased, squeezing air from my lungs. Despite this, the sensation was too much and despite my situation I jizzed.

Several moments passed by. Babs was becoming a little concerned. She was easily twice as large as a few moments ago and I was being a little quiet. Then she heard a faint sound. Reaching back, Babs fished me out from her mighty bum. She lifted him before her face, her head larger than my whole body. I fit perfectly into her still growing palm. I was breathing heavily, drenched in sweat and cum. She looked down at me and asked, “Ya say somethin’?” I wheezed a little, my ribs probably had been cracked, then smiled up into her huge, beautiful face. “You, cough, win. You’re too big, Babs. Your ass is stronger than me.” She broke out in a deep chuckle. “That’s right tiny. I’m way too big for a squirt like you. So you’d better be grateful, eh?” I nodded and kissed one of her large fingers. “Extremely, you’re amazing Babs. The best.” She leaned forward and ran her tongue over my body, cleaning me. She withdrew back with a wicked half smile and winked down at me. “Damn right I’m the best Anon. Don’t you ferget it.”

Author's Note

This was a difficult chapter to do. What I found was I kept it going, with new scenarios constantly. I had originally had an end goal in mind and it was being buried. I finally forced myself to finish it, leaving some ideas on the table.

I hope you enjoyed it. If you did, leave a like, comment, and thank you.