Anal Angel
Fluttershy walked into the front room of her cottage after a relaxing day at the spa with Rarity, the ironic thing about relaxing at the spa is that it just made Fluttershy want to unwind even more when she got home. Though she'd made a point to visit Zecora to pick up a potion that she had made for her as a favor, Fluttershy had been waiting for this potion for a while now and was determined to use it today as a special surprise for Angel, that was assuming that Angel was in a particular mood, which was a mood he was in rather frequently, you know what they say about rabbits! She did briefly consider going to Twilight for the surprise she had planned, only problem was that she'd have to walk back home through Ponyville and Twilight liked to ask questions, whereas Zecora lived only a few meters away from Fluttershy's cottage and was perfectly fine to ask no questions whatsoever.
Fluttershy couldn't quite remember how or when it started but she knew that at some point she realized that whenever Angel busted a nut, he was a lot more tolerable and a lot less cranky, so now whenever he felt frustrated she'd assume the usual position and allow Angel to have his fun. Today however, she figured it was time for just a little bit of payback for the years he'd spent treating her like dirt, right after they engaged in an activity that had undoubtedly become Angel's favorite pass time. Sex, more specifically, anal sex. Fluttershy had made it very clear to Angel that he was only allowed inside her butt, which he was more than fine with, Fluttershy may have been somewhat willing to let her pet rabbit hump her rump but stayed strong in her self-imposed rule that her hands and her sex toys were the only things that could go near her sloppy, wet and stretched out cunt.
As soon as Angel heard the front door close he bounded in from the garden to greet Fluttershy at the door, so excited that his foot was thumping against the floor more than usual. Fluttershy giggled and said "My my, you're very eager today huh Angel?" Fluttershy turned away, hooking her thumbs into the waistband of her jeans and panties before pulling them down over the curve of her ass, she shook her hips from side to side a little as she said "Is this what you want?" The way Angel's cock stood immediately at attention, pulsing with a sense urgency, gave Fluttershy all the answer she needed. Smirking with a wicked glint in her eye, Fluttershy shimmied her jeans and panties down her legs until they fell down to her ankles, shortly before she kicked them away to the other side of the room. Fluttershy lied down on the floor, propping up the front of her body on her elbows so that she didn't just smoosh her sizable tits against the floor and said "OK Angel, whenever you're ready, come over here and take me".
Angel hopped his way over to Fluttershy's cute little booty before he started nuzzling at her ass cheeks, the signal he always used when enjoying the sight of Fluttershy's butt until he was ready for more, it seemed he wanted to skip the foreplay in that regard and get straight into the action. Fluttershy chuckled and rolled her eyes as she reached a hand back to pull an ass cheek aside, revealing her tight pink pucker. Fluttershy let out a small yelp of surprise as Angel began lapping away at her asshole, his coarse tongue sending tingles up her spine as he dragged it over every inch of her back door. Fluttershy grinned and said "Mmm... such a gentleman Angel, getting me nice and ready to take your thick and hard rabbit cock", Angel didn't respond much beyond continuing his oral assault on her back door before he pulled away and set about mounting his owner. Angel's dick, just like any other rabbit, was very cylindrical in shape and in terms of proportion was about the size of a butt plug for beginners, in other words it was the perfect tool to give Fluttershy a comfortable pounding in the ass.
The second Fluttershy felt Angel's rounded tip pressing against her rear entrance, she let go of her butt cheek and brought it back to the front of her body to support her heavy tits and waited for the pleasant feeling of a stiff but slippery dick to gently glide into the warm confines of her ass. Angel pushed as hard as his little bunny muscles could, his hips aching as he desperately tried to gain access to Fluttershy's bottom, they may have done this before but Fluttershy's secondary fuck hole had an annoying habit of tightening up whenever Angel had finished up inside and had pulled out so he could recharge for the next time his balls needed emptying. After a few seconds, Angel's tip popped into Fluttershy's butt, causing her to let out a satisfied sigh while Angel clumsily moved himself forward until he was fully hilted inside of her and ready to start humping away like his very life depended on him giving his owner the fucking of a lifetime.
Fluttershy moaned in contentment as Angel start pumping his cock into her ass, his fuzzy pelvis colliding with her pert buttocks and sending small ripples across the globes of flesh that made up her behind. Fluttershy looked back at Angel and said "Still not a big fan of pacing yourself huh? Always hurrying towards your orgasm like you're in some kind of race to squirt your sticky fluids into my cute little butt", she chuckled as Angel reacted to her slightly dirty talk by increasing the strength and rhythm of his thrusts, his balls colliding with the very edge of Fluttershy's pussy, enough that it started to make her incredibly wet. Fluttershy was actually a little flushed, a red hue glowed along her features as beads of sweat started to shine out from her pores, her breathing steadily becoming heavier and more rapid, she wasn't usually so affected by Angel's anal advances. Fluttershy figured a combination of Angel's excessive enthusiasm combined with the anticipation of the surprise she had planned was what was making her a little more turned on than usual, though her mind went slightly blank as she reached a hand underneath herself to massage her aching pussy and using the other hand to squeeze her hefty left breast, closing her eyes as she bit her lip.
a couple of minutes later a small but still satisfying orgasm shuddered through Fluttershy's body, she let out a groan of pleasure while Angel continued to hammer away at her ass. Her moans were soon followed by a sound of intrigue as Angel suddenly, out of nowhere, rammed himself up Fluttershy's butt and held himself there as he began releasing his pent up seed. Clearly the involuntary clenching of her anal muscles as she reached orgasm had caused the walls of her soft and silky insides to somewhat stroke Angel's cock while he was fucking her.
Fluttershy let out a hum of satisfaction as she felt her rear end filled with warmth, she wiggled her hips a little and smirked before looking back at Angel and saying "More sensitive than usual today, huh?"
Angel dismounted, allowing his softening cock to slip out of Fluttershy, leaving nothing behind but a twitching pucker that would keep his spunk sealed in the velvety confines of Fluttershy's firm smackable ass. Time for the surprise, "Oh Angel..." said Fluttershy as she stood up, picked up the potion and popped open the lid, Angel briefly took note of what Fluttershy was doing and wondering what could possibly be coming next. "I hope you're not out for the count yet..." Fluttershy said, just before she downed the purple liquid and tossed the empty vial into the bin, then Angel's eyes went wide as Fluttershy's body started to undergo a serious transformation that would shift the dynamic of their sex entirely. Fluttershy's wry smile only intensified as Angel watched and stared with a wild mix of confusion and desire as he saw his owner's pussy seemingly just vanish to be replaced with a fat set of heavy cum-filled balls and a large proudly erect cock, Fluttershy felt an instant increase in lust as her body was flooded with testosterone, compelling her to find the nearest available hole and fuck it.