Unspoken Pleasure (erotica)

"That's a good girl," Austin said, watching his sister's pleasure run through her. Brothers weren't supposed to see their sisters cum. They weren't supposed to know how their little sis stroked her pussy. The way her lip quivered as the orgasm rushed through her. The gasps and moans of sisterly ecstasy.

But then, there were lots of things the siblings shared that they weren't supposed to.

"Your turn," Molly said with a saucy smirk. She turned around and put her hands on the wall of the shower, like she was about to be frisked. Which, she was in a way. She pushed her butt backward, presented her sex to her brother. She looked back over her shoulder. She could see Austin's hungry grin. God, that looked good.

She felt his hardness push at her pleasure center. She flashed back to the last time they'd done this, the way it had felt to have her brother inside her. The way he'd almost... Molly was pretty sure her brother wouldn't impregnate her. She'd thought it through multiple times, and she was almost positive he'd have pulled out if their parents hadn't walked in on them.

Pretty sure. Almost. Was Molly ready to risk that with her unprotected pussy?

"Hey Austin?" Molly felt her brother pause right at the point of attack. The head of his cock barely spearing her nether lips. "You know I'm not, like, safe, right?"

"... Yes," Austin said. That little hesitation made Molly feel good about hesitating. She knew herself, her body, by now. If she didn't trust her brother a little, she didn't trust herself a lot. Molly had begged for her father's cum. She'd wanted it inside her so bad she didn't care about the consequences. If James kicked down the door right then and demanded she take his seed, Molly knew she'd do it. Willingly. Happily.

But Austin wasn't forcing anything. Molly liked that about her brother, intellectually. Sexually, though, it meant she was able to make smarter, though perhaps less pleasurable, choices.

"I think, maybe, we shouldn't put it in," Molly said, "My pussy, I mean."

Austin stepped back. He tried to keep it quiet, but Molly could hear his sigh of frustration. She couldn't blame him. After all, she was the one who'd forced her way into the shower; had jilled herself off right in front of him. If this were Daddy... Molly shivered a little despite herself.

"Don't worry, big bro, there are plenty of other places to put that perfect penis of yours."

"You mean, like, you'll suck me off?" Austin asked. I really must be bad at blowjobs, Molly thought to herself, for a boy to sound that disheartened about a dick lick.

"No, silly," Molly said, "You're staring at it right now." Molly looked back over her shoulder. Her brother gazed down at her, his mouth slightly agape. God, he could be so stupid sometimes. Even Mom admitted that in her private moments. "My butt, silly. Stick it in my big, slutty backside."

"Molly are you sure?" Austin asked. Stupid but sweet, it wasn't the worst combination.

Molly rolled her hips back and forth, shaking her ample ass at her brother. "Don't you want to fuck me in the butt, big bro? Come on, I want it -- need it -- so bad."

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That seemed to do the trick. Austin reached back for the body wash. He squirted it all over his cock, then on his sister's butt. He spread it over her brown star, even pushed some in with his finger. Molly felt herself tighten back there, reflexively. For a moment, the buxom blonde began to rethink her decision. Yes, she'd done anal once before and had liked it, sort of. It had been different, that was for sure. She didn't mind doing it again. But Austin, well, she knew he was even bigger than her Daddy.

She felt her brother's cock head push at her rear entry then... Pop, his head slipped inside.

Oh fuck.

"G... go slow, Aus," Molly gasped.

"Uhn. Uh huh," Austin said. He gripped Molly's ass cheeks like they were the safety bars on the world's scariest ride. "God, you feel so good."

"I know, just... Just be careful, OK?"

Molly felt that familiar 'topple-over' feeling in her head as her brother's dick inched deeper into her ass. She reached back with her hand and started to tease at her pussy again. Her clit was still sensitive from rubbing it out earlier. In fact, her whole system was going haywire. Like her own senses couldn't separate the shocks of pleasure from the stabs of pain. He had to be halfway in now. God, what if he wasn't?

Austin slowly drew back from his baby sister's bum and Molly sighed. She squeezed her sphincter down, trying to increase Austin's pleasure. He groaned, letting her know it was working all too well.

When he got to just the head, Austin slid forward again. Deeper this time. Even more. Was his dick going to slide up her intestines in a second?

"Ohhhhhh," Molly groaned, low and feral. She hadn't even expected the sound to come out.

"That's it, I'm all the way in," Austin said, "I'm balls deep in your butt, little sis." He said it proudly, like he'd climbed a mountain or won a tournament. Molly almost laughed for a moment, picturing the 'fucked my sister in the ass' trophy. Then it was gone and her head tipped forward, overwhelmed by it all.

Austin was still sliding slowly -- taking his time, savoring every sensation. Every push in, Molly felt like the whole world was going to roll over. Every inch elicited those low, animal groans. Maybe anal's not my thing, she thought to herself. But it was too late to change course now. She worked her clit faster. There was a battle inside her between ecstasy and agony. Her brother pushed one end into her ass, while Molly drove the other. A tug of war where both siblings would be winners. Austin felt the velocity of his sister's fingers increase and took the hint. He began plumbing her ass faster.

"God, Molly," he said. He kept spitting out those little nonsense phrases. "Your ass. So good. Little sister."

Molly wished he'd reach down and grab her tits, like Daddy did, but the position didn't allow for it. And Austin was too focused on the job at hand. Her brother was battering her big butt now. The shower echoed with loud slapping noises as Austin's hips slammed against hers.