Chemical Romance

Chrysalis grinned wickedly "Excellent... Thorax! Pharynx!"

Two larger than average changelings entered the throne room and bowed before saying in perfect unison "Yes my queen?"

"One of you is to breed this pony's pussy, she remains in heat and because we have never used a pony as a host before it is important we see if changeling seed is compatible with the egg in her womb"

Pharynx stood forward as volunteer and said "Permission to be the one who does the vaginal breeding my queen". Chrysalis simply nodded, leaving her to tell Thorax what his job was.

"Thorax, you shall be responsible for the traditional way of breeding by depositing your seed into her rear chamber where I shall also deposit my eggs, understood?"

Thorax nodded and said "Yes my queen"

Chrysalis sat on her throne to watch the spectacle play out.

Pharynx went first, he mounted Twilight from behind before he was even fully hard and pushed his cock all the way into her moist wet caverns. Twilight's eyes went wide before she let out a moan of satisfaction, with her tongue hanging out of her drooling mouth. Pharynx was surprised to find that Twilight's pussy, while still clamping down on his dick, was actually exceptionally loose and unnaturally warm and slippery, she must have been prepared for this eventuality for quite a while. Pharynx tightened his grip on Twilight's hips and began pumping away at her perfect purple pony pussy, Twilight just let out continuous moans of pure elation as Pharynx claimed the most sacred hole on her body, it turned her on so much that he might be the one to father a new generation of powerful changelings. The thought of giving birth to countless litters of changeling young filled her with a joy that could never be matched, the heat in her groin intensified and her pussy rippled and quivered to encourage Pharynx to unload inside of her as soon as possible.

Pharynx did indeed speed up, his balls slapping against Twilight's clit. Chrysalis was greatly enjoying herself if her moist nethers anything to go by. Twilight was desperate, desperate enough that she began to verbally encourage Pharynx without express permission from Chrysalis to do so "Come on Pharynx, you want to serve the hive don't you? Start fucking me like a real changeling! You call yourself a worthy breeding drone? I can barely feel your pathetic cock, get with the program bitch boy!" That was enough to stir Pharynx's inner lust.

Aggressively, Pharynx bit down on Twilight's ear, drawing blood, then began pounding her so hard that his hips had actually begun to bruise her poor tender butt cheeks from the relentless colliding of flesh on flesh. Twilight saw stars, the line between pain and pleasure virtually non existent as she embraced the violent sex Pharynx was providing shortly before he groaned with one more hard ram of his cock into her pussy, spilling his seed directly past her cervix and into her uterus. The effect was immediate, the burning heat that Twilight had endured was suddenly gone, quenched by the receival of Pharynx's load, she had never felt more relieved or relaxed in her life.

Pharynx pulled out, genuinely exhausted, the dismounted as he said "OK brother, your turn". Twilight;s ears perked up at the word "brother", she turned her head and said "Oohh, a sibling rivalry, huh?"

Chrysalis became annoyed, she didn't have time for them to engage in idle chit-chat, even if said chit-chat was sexual in nature. "Enough" said Chrysalis "We are not here so that we can explore the kink factor of your coupling. Pharynx, leave. Thorax, fuck her ass already!"

Pharynx did the smart thing and left while Thorax, slightly flustered, said "O-of course my queen! Right away!" Chrysalis sighed, it was incredible that such a pussy like Thorax had somehow become an ideal breeding drone. Thorax took his brother's place behind Twilight and mounted, aiming his cock higher, he pressed the head against Twilight's tight pucker. After applying some pressure, it popped inside while the walls of her ass clenched down on the intruder. Thorax slowly pushed inch after inch of his cock into Twilight's back door until his hips met her butt cheeks, with his balls resting gently against her used pussy, then he started fucking.