Maud has sex with Everypony.

The pegasus stuttered a bit as Pinkie Pie dragged him forwards, but when Maud's stoic gaze washed over him, he froze up and stared at her with a mixture of fear and intimidation.

"This here is Flash Sentry!" Pinkie Pie bubbled, whipping her head around to throw the pegasus to the ground in front of Maud. She simply looked down at the off-yellow colored pegasus, giving a slight nod befitting of a formal introduction. Flash Sentry looked her up and down before getting to his hooves, albeit a bit unsteadily.

"I-I'm just in town on business," He started to stutter, glancing about furtively. "I, uuh... I didn't know Ponyville got like this."

"Once a month!" Pinkie beamed, bouncing around behind Maud to start licking her once more.

"Pinkie..." Maud looked back at her sister once more, blushing just a little as another wave of pleasure rocked through her.

"I'm getting you ready!" Pinkie bubbled, her tongue restless against Maud's dripping labia.

"For me?" Flash Sentry stammered, peering over Maud's flanks. She could see the pegasus was already hard, undoubtedly from the debauched display of sex all around them.

"Of course, silly! I already had my fun with her! Now it's your turn!" Pinkie's hooves shot forth, wrapping around Flash Sentry's neck quick and easily. Maud watched as the yellow-ish pegasus was dragged behind her, and her dress was flipped up over her flanks. Almost out of instinct than anything else, her tail swished aside, giving him a peek of her drenched cunt.

"Oh... I, uuh... I guess I got time for one more." Flash Sentry awkwardly followed Pinkie's eager motions, lifting himself up until his hooves rested on Maud's flanks. She wasn't the only wet one as she felt his flared head press against her, rubbing up and down a few times. Then she remembered Pinkie had descended into the fray of fucking ponies to pull him out. Knowing Pinkie, she had just yanked him from outside of another mare. Then again, the poor guy looked like he was too shy to handle the whole situation.

He was probably an outsider. Just like her. Maud gave a soft, almost imperceptible sigh of annoyance as he glided inside of her. He was hard but not that thick. Kind of like a round shaft of quarts. Maud's mouth opened in a breathy pant as soon as she imagined him as such. Flash Sentry slid deep into her, passing his flare with ease. Maud didn't even stumble under his moderate weight, but bore him well.

"You're... Enjoying this?" Flash Sentry panted, his cheeks already heated up. Maud looked back and up at him, her eyes half-lidded.

"This is... Slightly more pleasurable than a landslide... But less so than a six-point-oh earthquake."

"Oh-kaaaaayy?" Flash Sentry paused his thrusting for half a moment before resuming, his rock-hard cock slipping over her soaked walls with ease. She just blinked at him as he began picking the pace up. Pinkie Pie stood off to the side, watching with interest as Flash fucked her easily.

"Gonna..."

"Hmm?" Maud glanced back at him once more. Before she knew it, Flash pumped a long stream of something liquid inside of her. She felt him pull out, taking a fair amount of his own release with him. Maud glanced at the ground and the steadily-growing puddle of white liquid there.

"Oh..." She wiped a hoof over her drenched core, noting the way her own arousal and Flash Sentry's creamy cum glistened on it. "It's just like a sedimentary rock when it's covered with water."

"Right..." Flash Sentry panted, obviously flustered. He glanced at Pinkie with an arched eyebrow. "She's... Okay, isn't she?"

"She REALLY likes rocks." Pinkie leaned in, whispering into his ear with a less-than-surreptitious tone. "Like, REALLY likes them."

"Oh... Erm..." Flash Sentry glanced around before scuffing his hoof through the dirt. He kicked up a pebble and offered it to her. "Here you go?"

"This is an igneous rock." Maud noted as she graciously accepted the gift.

"I'm sure it is..." Flash Sentry backed away slowly, glancing between Pinkie and Maud before turning tail and running.

"Hey come back!" Pinkie called after him. "I didn't get my turn!" She dashed off after him, leaving Maud alone in the town center. She dropped the igneous rock and looked around at the other ponies going at it.

"Well, Boulder." She patted her breast pocket, where her pet rested. "Looks like it's going to be a long week."

"Are you new to town?" Maud turned to the new voice...