Author's Note

Author's Warning: This chapter contains incest. If that kind of thing offends you/grosses you out, you're strongly urged to stop reading now.

Sibling Ribaldry III

Fluttershy flopped bonelessly on her bed after an exhausting day at the animal shelter. The day had started brisk, so she'd dressed in layers, but a heat wave had settled in by the middle of the afternoon, and with most of her work for the day involving hauling massive bags of food back and forth from the shelter to the shed, she'd rapidly become a sweaty, sticky mess. Worse, she'd worn the wrong shoes entirely for the work, so her ankles were killing her.

Heaving a tired sigh, Fluttershy sat up and took off her wedges, then stood, burying her toes in the thick carpet as she crossed to the door, closing and locking it. After putting her shoes on her shoe tree, she started peeling off her sweaty, messy clothes, folding them into the hamper until she was down to just her panties. She grabbed a fluffy towel out of her closet and gave herself a pat-down, then opened her dresser and rummaged through it for something light and cool to wear. "Maybe a shower?" she hummed to herself. "Nah, it's too humid. I'll wait and take a bath tonight." She sighed and flopped back onto her bed, still in just her panties, her dresser drawers open and thoroughly tumbled. "Think I'll cool off first, it's not like anybody can see—"

She trailed off abruptly, blinking owlishly. She glanced at her bedroom door.

Her closed, locked bedroom door...which had been wide open when she'd walked in.

She glanced over at the dresser mirror. She saw a brief flash reflected from under the bed. She closed her eyes and sighed tiredly.

"Zephyr Breeze?" she called out in irritation. "Are you under my bed? Were you taking pictures of me undressing?"

Silence.

She exhaled slowly. "Were you recording video of me undressing?"

More silence.

"I know you're there, Zephyr Breeze. It wouldn't surprise me if I rolled off this bed right now and found you down there with your dick in your hand."

A moment passed.

"FYI, I do not have my dick in my hand," Zephyr's voice issued from beneath her. "I was gonna wait until I was safe in my own room for that."

Fluttershy growled, anger burning through her body. "You little pervert!" she cried. "What is wrong with you?! GET OUT OF MY ROOM!"

"You uh, kinda locked me in with you," Zephyr pointed out. "And you're still pretty much naked. I mean, if I come out, I'm gonna see exactly what I wanna see, and if you get up an' put some clothes on, I'm gonna see even more." He paused. "I notice you didn't take off your panties. They gotta be pretty sweaty too, right?"

*I can not BELIEVE THIS...* "How'd you even get in here?"

"One of your rats got loose," Zephyr said. "Moms had to unlock the door to put him back. She just forgot to lock it back."

Fluttershy took a deep breath. "And you snuck in here to do what, steal my underwear? Read my diary?"

"Wait for you to get home actually," Zephyr said. "Figured I'd catch you changing clothes, get a few good pics, sneak out without getting caught when you go to the kitchen to make your sundae."

Fluttershy pinched the bridge of her nose. "You're sick," she said. "You know that, right?"

"Hey, can I help it if my sister is the hottest chick in the whole city?" Zephyr retorted. "I mean yeah, when it comes to brother-sister type stuff and your whole everything about the bathroom, you work my last nerve, but..."

"But?"

"But I'll never stop thinkin' about that sweet, sexy bod," Zephyr said.

"I'm your sister, you little creep!"

"Yeah, I know," Zephyr said. "But you're also the first girl I ever popped a boner for, you know?"

"Ugh!" Fluttershy cried out in disgust. "I don't need to hear that!"

"It's true, though. It was your fourteenth birthday." The bed lurched, accompanied by a grunt of exertion. In the mirror, Fluttershy saw Zephyr crawl out from under the bed. To her surprise, he turned and flopped down next to her on the bed, his legs dangling over the side. He crossed his arms behind his head and stared up at the ceiling. Fluttershy edged away, guardedly crossing her arms over her chest, and watched him warily. "You decided to have a pool party, remember? You'd just had a growth spurt and outta nowhere, you had the biggest tits of all the girls in your class, so Rainbows talked you into wearin' that skimpy bikini."

Fluttershy blushed furiously. "I...remember that," she said.

"You were smoking hot," Zephyr said. "I couldn't believe it. My sister, the bathroom-hogging bitch who busted my balls every day as long as I could remember, was suddenly this goddess, all long legs and tight round ass and tits and so much sexy skin showing...man." Zephyr shifted slightly. "Course, you got all flustered when everyone started payin' attention, so you ran inside and covered up, but for just those ten minutes you were out there lettin' it all hang out? Unf." Zephyr shuddered. "Man. I hadda keep a towel wadded up in my lap the rest of the day."

"Oh," Fluttershy said. "I...see..."

"Thing is, though," Zephyr said, "I couldn't get over it. From that day on, no matter how much we fought, no matter how sick of your animals crappin' on my stuff I got, I've never been able to forget that day, and knowing that my crazy, overbearing sister is that smoking hot sexy goddess in a bikini." He shook his head. "My first real crush and it was on my sister."

Fluttershy stared at him in stunned silence. As she struggled to come up with a response, she dimly became aware of a gentle, insistent pressure on her left breast. It took her a second to realize that while he'd been talking, Zephyr had managed to slip his arm around her and was fondling her. "ZEPHYR BREEZE!" she shrieked.

"Course, they got way bigger since then," he said lazily. "Man, they're soft."

"Why you—!" A dozen actions flipped through Fluttershy's mind: Stand up and storm out of the room, slap her brother, pull his hand away, shriek her head off, kick Zephyr in the balls, and more and more...

She sighed tiredly and settled down, not bothering to dislodge his hand. "Screw it," she said. "I'm too tired to kill you right now. Besides, maybe this'll get it out of your system."

Zephyr blinked. "You—you serious?" he asked. "You're gonna let me feel you up?"

Fluttershy shrugged, her bare breasts wobbling. "Don't misunderstand me, you'll suffer for this later. Better enjoy it while you can." Her breath hitched as Zephyr tweaked her nipple, his fingers firmly working the supple flesh of her breast.

"You are the most awesome sister ever," Zephyr said.

Fluttershy rolled her eyes. "I bet you've done this to me in my sleep once or twice," she said.

"I've never once touched your body, sis," Zephyr said seriously. "Taken pictures I shouldn't have, maybe. Snuck into your room while you were asleep and half-undressed you for a quick look at your tits? Yeah, I'll admit I've done that."

"Oh, I know," Fluttershy said, pressing her lips thin. "That's why I started locking my door. You didn't exactly cover your tracks. That and the cum stains on my stomach were kind of a dead giveaway."

"...oops. Heheh. Umm...sorry."

Fluttershy blew at her bangs. "I can get being, umm, attracted to me, but why do you have to be such a creepy pervert about—ah!—it? Also, that felt good, do that again."

Zephyr sighed. "I dunno," he said. "I mean, it's just...sometimes I can't help myself, you know? Like, it's...it's a thrill. Doin' stuff like that. Like, the more wrong it is and the more it's likely to get me killed or worse, the more I wanna do it."

"Uh-huh." Fluttershy grimaced. "So it's one of those weird fetishes."

"I guess so."

"So that's why you were hiding under my bed recording me taking my clothes off, because you knew you'd probably get caught and you got off on that?"

"Yeah, pretty much."

Zephyr had shifted around and taken Fluttershy's other breast in hand, and was now kneading them both. She'd moved her right thigh over his just enough that she was peripherally aware of his erection. "Hey, Zephyr?"

"Yeah?"

"Be honest with me, just how much of my naked body have you seen, really?"

She was looking right in his eyes. Zephyr didn't hesitate to tell the truth. "Everything but your pussy."

Fluttershy blinked. "Really? Umm...okay, that's disturbing. I guess I should be relieved there's at least one part of me that's safe from your perving eyes."

"Course," Zephyr said with a sleazy grin, "I don't need to see it." His hand moved from her breast down the front of her body, tracing over her smooth, bare stomach, toward her groin...

"Zephyr," Fluttershy growled in warning, moving his hand away.

"Aww, c'mon, sis," Zephyr pleaded. "Let me touch it, please?"

Fluttershy groaned, then sighed and parted her thighs. "Sure, why not," she said. As Zephyr's hand returned to her stomach and quested for the waistband of her panties, she reached over, unzipped his pants, and reached inside, deftly seizing his dick and stroking her long, delicate fingers along its length.

Zephyr halted. "F-Fluttershy?!"

"Well it's not like you have a hand free to do this yourself," Fluttershy pointed out. "Besides, as long as I have a hand on it, I can make sure you're not trying to put it in me..."