Clap. Clap. Clap.
With every thrust Celestia crashed against Shining Armor's flushed and sweaty plot, her enchanted futa sliding in and out of his loose butthole with ease.
That wasn't how Celestia liked it, though.
"Clench your butt, Shining, it's too loose for me to feel anything."
Shining Armor grunted with every thrust. "Mmph - yes - mmph - princess."
His eyes closed out of pleasure and he exhaled loudly, and Celestia felt his butthole tighten around her horse cock. It pulsed and got hard from her arousal. His rump was so tight now that Celestia withdrew her cock so as not to cum too soon. She wasn't yet done teasing her lover.
Shining looked back hopefully. "Are you going to cum on me now, your majesty?" he begged.
Celestia slapped his plot and tutted. "Not yet my sweet. We still have much fun to have."
She laid down on her back, temporarily removed the futa enchantment and beckoned for Shining. "Come plant that beautiful white butt of yours on my face and eat out my pussy."
"Yes, your majesty."
He did as he was told and sat on Celestia, placing his steamy plot on her face for her to enjoy. The aroma of it was delightful; sweat and pre-cum. As his perspiration dripped onto her face, she couldn't resist anymore. Placing one hoof around his cock, she buried her muzzle into his gaping asshole, rimming the edges with her tongue and teasing his sphincter. He moaned, and lowered his own muzzle into Celestia's dripping wet snatch. He pleased her clit with his tongue, and massaged around it with his hooves.
When Celestia was finished with his butt, she used magic to summon a purple dildo. She had it penetrate his drenched hole and thrust in and out slowly. Then, she grabbed his plot and wrenched it towards her, giving her the perfect angle to begin sucking on his throbbing horse cock. She licked it clean of all the pre-cum that had been released onto it. She couldn't get enough of its delicious flavour. As Shining continued to eat her out, she deepthroated his cock, and used her wings to please his testicles. She could feel his excitement rising, he was sweating more, moaning more, his whole body shaking from the pleasure.
"Y-your majesty, I'm c-cumming!"
Celestia sucked his shaft faster than ever, and Shining pumped violently into her thirsty throat as what felt like gallons of horse cum shot down her neck. She sucked him dry and he yelled at the top of his lungs. She felt his muscles contracting as he climaxed.
Finally, he delivered one last thrust and stopped, withdrawing from her mouth. As his head parted from her lips, a strand of cum stretched apart, keeping them connected. Shining collapsed on top of her, exhausted.
"We're not quite done yet, my love." Her magical futa reappeared, and she slowly entered Shining's blood red butt to resume thrusting.
"Cum inside me, your majesty."
Celestia's pumping picked up speed, and she felt herself approaching orgasm. She felt Shining once again clenching his hole. Celestia's steamy load rose to the tip of her horse cock, and she was about to climax. Her eyes half closed from the intensity of the pleasure. Celestia spanked his butt. She was going to release oceans of hot cum inside Shining Armor's sweaty, fat, blue asshole--
Blue?
Shining Armor's perfect white stallion plot had been replaced by an equally perfect blue mare's butt, adorned by a moon on both sides.
"Luna?" she cried in surprise. "What are you - what?"
Luna laughed. "Well don't stop now." At Celestia's bewildered look, she slapped her own butt. "Finish what you started."
Celestia was disgusted. "You want me to - in my own sister?"
"If you don't want to, that's fine." Luna smiled seductively. "But it would be an awful shame if Cadance found out you dream about intercourse with her husband."
"I refuse," Celestia persisted. If Luna told Cadance her secret she would never be able to look at her niece again, but she refused to ejaculate in her own sister's butthole. It was crazy.
Luna sighed and her horn began to glow. "Fine, then."
Celestia's cock began thrusting again, against her will. "Luna, stop this!" she wanted to say, but... it felt so good. Luna's butt was still very tight, unlike Shining Armor's, which had been subjected to hours of stretching.
Luna grabbed both of her butt cheeks and pulled them apart, making way for Celestia's throbbing erection. The both of them began to moan as they reached climax in unison. Luna's horn glowed again, and three of her bat pony guards appeared. The first grabbed Luna's face and began thrusting into her mouth. The second and third came up behind Celestia and inserted their cocks into her pussy and her butt. It felt magnificent to have both of her holes pleased as such. She was shaking and tingling all over, seconds from orgasm. All five ponies cried in unison:
"I'm cumming!"
In a rush of pleasure and emotion, many things happened at once. Celestia finally unleashed her load into Luna's butt. Luna tried to moan but it was muffled as her guard also came, into her mouth. Celestia and the two guards attending to her all yelled loudly as the three of them achieved orgasm and finally released all the tension. She felt her cunt and her butthole being filled with horse cum. The guard in Luna's mouth withdrew.
"That will be all." Luna said, and the other two guards inside Celestia also pulled out. One last wave of pleasure rolled over her as their shafts exited her weak holes. With nothing to block them, some horse cum began to run out of her pussy and her butt, running down her legs and to the floor.
Celestia didn't pull out her own cock. Instead, she fell on top of Luna, resting her head on her sister's back. Luna turned her head and whispered, "Now suck it out."
Celestia was again surprised, but Luna elaborated, "No, really, get it out of my butt or I'll be farting cum for days. I'll do the same to you after."
Celestia sunk down off Luna, pulling her cock out of her butt and wrapping her arms around Luna's legs and resting them in her crotch, so she was hugging Luna's plot tightly. She took a deep breath and stuffed her mouth into Luna's butt, sucking out her own cum. Luna moaned again from the sensation.
Celestia pulled out and raised and eyebrow.
Luna closed her eyes and laid her head down on the ground. "I'm sorry, I can't help myself when somepony teases my butthole."
Celestia inserted just the tip of her tongue slowly into Luna's hole, and quickly withdrew before getting too deep, to tease her. Luna laughed when she pulled out. They repeated this several times, and Luna laughed every time, until she laughed too hard.
Celestia pulled out as before, and Luna's butt farted out cum into her face. She licked it off.
"That was effective."
They continued for hours, teasing one another's butts and farting out cum until they got it all.
