As Amy walked home after parting ways with Blaze, she couldn't help but smile at all the looks she was receiving. Her dress was nowhere near sufficient to cover her new amazing ass, now on par with what Blaze had been naturally gifted with. It truly was ironic that they would both receive what the other craved. Back in her younger years, it was usually her booty that would garner attention, given how her dress would always give a rather convenient opportunity to see what she had on underneath. It even reached a point where she actually started wearing shorts just to make up for it. As she grew up though, she was shocked to see that her butt was always content to stay the same size while her bosom ballooned to baffling proportions. Not that she minded, not in the least, she loved her boobs with all her heart and soul. But now she had the booty to match, and she truly felt like the word 'bombshell' was an accurate descriptor of her. "Wait 'till Sonic gets a load of this load!"

She giggled at her own ridiculous pun, soaking in every ounce of attention as she finally made it back to her apartment and locked the door behind her. "Alright...time to get a really good view of this baby!" She hurried to her bedroom and stripped off her red dress and boots, leaving herself with only a lacy black bra which struggled to hold her boulders, and a pair of now incredibly tight white panties. She was about to admire herself in her mirror...but then she stopped, pondering an idea she'd always wanted to do. "Maybe...yeah!" She changed course to her closet, and clothes went flying as she dug through the piles to find what she was looking for. "Ah ha! I've always wanted to pull off this look, and now I can!" Without a moment's hesitation, she slipped on the items she found. A pair of red and white striped socks that reached all the way past her knees, and a top that revealed her shoulders and was embroidered with a gigantic heart in the middle, emphasizing the sheer size of her breasts. "Alright...now...the reveal!"

The pink hedgehog went over to her mirror, and she stuck her newly enlarged ass out and looked over her shoulder, seeing the monstrous bubble butt staring back at her as if to reward her for her perseverance and dedication. "Amazing, now this is the kind of ass that drive men wild!" She smacked her booty, causing it to wobble and ripple like a pebble being tossed into a calm lake. "Not quite as big as Cream, but darn if this doesn't even me out in the best way possible!" She then started groping her own ass, kneading the flesh like dough as she explored all this new skin that was 100% all her, regardless of being scientifically enhanced. "Tails could put plastic surgeons outta business! This is perfect!" Amy sucked in a breath, the nerves in her ass extra sensitive from their expansion. "This feels so great...but I can know how it can be even better!"

She bit her bottom lip in anticipation as she made her way to her bed, sitting down on the edge of it as she reached underneath her pillow, and pulled out a small red device that began buzzing incessantly when she turned it on. Her heart raced with excitement. This little toy of hers had given her much relief over years of lonely nights...but this was the first time she'd use it with her hormones fully charged and her body aching for touch more than ever before thanks to her heavily enhanced sensitivity. She reached down to her clit with the vibrator, pulling back a few times before it actually reached her, somehow hesitating to actually go through with it thanks to her anxiety. As she rubbed her butt tenderly while the vibrator desperately pleaded with her to let its effect take hold, she finally took a deep breath and plunged the tiny device into her clit.

The reaction was strong and instantaneous. With a screech of pleasure, Amy collapsed onto her mattress, her huge breasts squishing underneath her as her face crashed against her pillow. She gasped as she pulled the vibrator away from her throbbing pussy, huffing from the surge of pleasure she just experienced. Scattered thoughts rushed through her mind at a breakneck pace, mostly about how her increased booty mass was making this experience all the more enjoyable from the sheer sensitivity alone. Her face flushed as she moaned, gently placing the vibrator against her g-spot and removing it again, unable to fully commit due to just how strong the intensity was. She gasped for air as she tried to regain her thoughts. "This is the ass I've dreamed of for years...and my patience is paying off right damn now..." 

With all the determination, she could muster, Amy slammed the vibrator back into herself, and she screamed as her tongue lolled out, drool dripping from it as she raised her gargantuan ass into the air, fully giving her vibrator access to the most sensitive spot she could find. She gripped her pillow with her free hand as her whole body clenched at once, her body gasping for air as the pleasure threatened to cause her to blackout. She could tell she was on the verge, her panties were soaking wet with her womanly juices and the vibrator was making it spray everywhere. With one final scream, Amy collapsed onto her bed entirely, her orgasm reached and leaving her in a haze that was unlike anything she'd ever experienced. "This ass...is the best thing that's ever happened to me..."
She struggled to get back up, the intensity of her orgasm leaving her weak. But she was eventually able to take off her sweater and use it as a towel to wipe off the mess she'd made in her bed, leaving her black bra fully exposed along with the massive tits inside. "Guess I'll have to change the sheets..." Beyond that, her thoughts remained idle, as she bit on her own knuckle and looked up at the ceiling over her shoulder. This experience had changed her, she knew...she could never imagine NOT having a huge ass, already her life before this seemed a distant memory...and yet part of her couldn't help but wonder...was this really her ceiling? Could it get better? Could she get...bigger?