"Hmmm, yeah...!" Kente moaned as he thrust into Miru's lubed ass slowly, picking up pace. The pony had wanted to do anal with his same-species girlfriend for quite a while, but she also wanted to do it to him. However, he didn't want to be on the receiving end, so those conversations never got anywhere... Until Miru brought the idea of doing a threesome.
"Mmmf..." She moaned herself, her face covered by a Shetland sheepdog's butt. Brand was the one sitting on her, and she had found him through a web ad. Kente was in the dark about the Manner of services he offered, but he still seemed to be a qualified professional, and Miru was having fun, so the boyfriend couldn't complain, even if he had no interest in the other man for their 'threesome'.
The Sheltie leaned back on her long snout, letting her tongue reach his hole more easily. His ring parted effortlessly for her, letting her tongue explore him. Miru could taste the melon-flavored lube in his soft tunnel, coating the walls of the rectum, enticing her to taste deeper into Brand.
The sheepdog's own cock twitched in his condom, which was hidden from the other pony's line of sight behind his body – since Kente said that he would be uncomfortable staring at another man's junk during sex. But each thrust from the miniature horse caused the girl to push around a bit at his entrance, and grunt to vibrate his sensitive end. Miru's own ass felt too tight around her boyfriend's cock, so the male pony was making progress at a careful pace.
No matter how pleasurable getting penetrated felt, she was more interested in rimming the Sheltie right now. Brand leaned more of his weight on her face, shifting her snout a bit further in for her tongue to reach a new depth. He relaxed his muscles a bit more, and his anus began to stretch more around her.
Kente wasn't make much headway on his end, until he heard a 'shlorp!' across the bed. Under the sheepdog's spread buttcheeks, he could see that most of his girlfriend's face had sunk into the hole! "What the...?!" He gasped, and Brand raised his ass in response, letting the lube-covered head of the pony slip back out onto the mattress.
"M-More..." Miru begged. Her boyfriend noticed how her insides also relaxed to let his long flared cock fit deeper in her. He never knew that she was into kinky stuff like this, but it was her idea to call the Sheltie for this, after all. It was definitely something new for Kente, but he decided to nod to Brand and let her enjoy the other male's attention, especially if it meant making more progress.
The dog smiled, leaning back to easily take her face back in and resume from where they'd stopped. But with more lube around her head, and the couple's willingness, he got her further in. Most of her head was squishing against his lubricated insides, but there was still a long way to go.
Brand started to lean his body away, angling her more easily into him. As the pony's tongue drove deeper into him to lap at the lubed flesh, Miru also brought her two hands to spread his elastic hole wider, and slip each arm inside. Even Kente's thrusting was helping to get her further into the Sheltie, each one causing a wet 'squelch' to be heard. Brand could feel everything, even the girl's warm breath on his walls.
Her boyfriend didn't like the idea of being so close to another guy's butthole, especially one that was swallowing up his girlfriend. But listening to her muffled moan coming from his midriff, loud enough for his sensitive ears to make out, awakened something in him. He withdrew then shoved his dick entirely in her, finally able to fit it all in her guts. A tiny bulge appeared on her belly, at the deepest point that he could reach – and Miru screamed in delight. He closed his eyes, pretending that it was only the two of them, her moans being suppressed by a pillow, and continued to hump her now relaxed insides.
His prey was greedily slurping all of the melon-flavored lube, so Brand knew that he had to pick up his pace before it was gone before serving its purpose. With extreme dexterity, he managed to twist around with the pony's shoulders already in his rectum, until he had turned around with his cock facing up. This made it easier to slip down on her body, and he used his hands to work each boob into his hungry but stretchy hole. The bulge in his belly was nothing to scoff at, with her hands and head clearly visible through the long Sheltie fur.
Miru was in an absolute frenzy, being surrounded by warm flesh and the artificial nectar. With another yell, she reached her first orgasm, but hopefully not her last for the night.
Kente felt her warm juices pouring out from her vagina and onto his legs, and then he fully trust once more, reaching a simultaneous climax. He could feel his seed filling up her intestines, and he opened his eyes to look down. He had quite a bit of cum to dump in her, and her bowels bloated substantially more than with his dick alone. He kept it inside of her to enjoy her warmth for as long as he could – which wouldn't be much longer.
After the couple had orgasmed, it was Brand's turn to finish it off. He clenched his anal muscles, which managed to pull Miru a few inches deeper in a single 'swallow'. His intestines were now working like a reverse esophagus, pulling the pony up. Kente felt his girlfriend slip away from his still hard member, and simply stared in awe at the Sheltie noisily slurping her up. Was this talent why she'd chosen him for this in the first place?
The sheepdog smirked at his audience and, grabbing her hips, shoved the whole upper section of the pony in, his guts noticeably complaining and squelching with the furry intrusion. Kente simply stood on the same spot with his cock hanging in the air, but he was still hard.
"Wanna shove her in? Or pull her back?" Brand teased.
"Uhh, n-no way I'm going near your butt. I'm not gay." The boyfriend excused himself, blushing.
"Fine. Suit yourself~..." Clenching harder, he continued to slurp her. She was filling him up so well, that Brand couldn't help himself but cum into the condom he'd been wearing. Each spurt in sync with a clench of his greedy guts. When his climax settled, his ass had devoured her up to the ankles. "Final chance..." He warned, but Kente simply pretended to look away. The Sheltie shrugged and pushed her hooves into his hole, clenching one last time for good measure to get Miru completely out of sight. The sheepdog's hole playfully puckered out a bit when it was over.
"Is...that her moaning?" The pony asked about the weird sound coming from Brand's belly.
"Sure is... I think she's almost orgasming again– ah!" One more muffled yell, and then his insides went quiet. "There she goes. I guess she loves being in there..."
Kente scratched his arm, flustered. "So... what now?"
"I can let her keep enjoying my bowels. After all, she did pay for the full night package. And we can have some fun in the meantime~... Or I can let her out in your bathroom."
"Ew...? N-N-No homo, dude! And I'd rather she didn't smell like dog butt after she gets out... But don't do it in our shower!"
Brand smiled. "So, can I take her home for the night?"
"Uhhh...?"
"Don't worry, I'll let her out in the morning. But in case you change your mind later, I've sent you my phone and address, if you wanna have some fun..."
"A-Absolutely not!"
"Fine then." The Sheltie tossed the tied condom into a trashcan, and was getting partially dressed. He didn't bother putting his top back on, to let the pony-filled belly sag down to cover the crotch area of his pants. "I'll see you in the morning, cutie– Sorry, force of habit."
Once he got his things, Kente showed him the door of their condo, and he disappeared in his car heading onto the road. The pony collapsed into the arm chair, conflicted. He obviously could do without the male dog in their sex, but Miru had obviously loved all of it – and was still enjoying herself, no doubt –, and he did have one of his best nuts ever in his girlfriend's guts. If he let her rim his hole next time, then maybe she would let him do it again without–
W-Wait, no! Ugh, those two were getting into his head! There was no conceivable way he'd receive anal and enjoy it, right? Right...?