She smiled, "Don't move. I'll be right back. I'm not done with you."

She came back from the bathroom with a warm washcloth and tenderly wiped his slowly hardening shaft. She tossed the washcloth to the floor and leaned in closer to his cock, nuzzling it against her cheek. Her enormous brown eyes were locked onto his face as she did it. She started kissing and lapping at him then drew him into her mouth for a long and determined suck. She practically vacuumed blood into this shaft to finish its hardening.

He watched as she slunk back up his body to straddle him again. She leaned forward and down to kiss him sweetly first. She pulled her scrunchi free and let her soft blonde hair fall around their faces.

"Scooter? Could we maybe... the regular way... just once?"

She reached back and dragged his tip up and down between her tiny lips, already wet and swollen.

"Yes, I'd like that very much."

He barely got the last word out before she started sinking herself down on him.

"Oooh, Scooter," she moaned as she stretched to fit him in this entrance too. It was easier going there. She was hot and tight but superslick inside. She ground herself steadily downwards onto him until he was sheathed inside her completely. He groaned when she swirled her hips around in tight circles. She shivered, clearly savoring the friction at her clit and the satisfying fullness of his cock deep in her belly.

She screwed her face up in concentration and lifted off him then dropped back down. Her nostrils flared when he bottomed out inside her. She did it again. Then again. She rode him for a few minutes, eyes wide and glittery and hair swinging wildly, before rolling off him onto her back.

"Get on top, bro? I want to feel you above me. Pressing down on me and filling me up. I've... I've thought about us like this before. I can finally have it now, can't I?"

"You can have anything you want Lizzie," he moved on top of her and sank into her slick, dripping sex. Her young vagina sucked at him eagerly and he began thrusting into her steadily enough to make her breasts and hair sway again with their fucking.

"Perfect, Scooter. Keep... fucking me just like this. Keep... pounding your horny little sister... and she'll come for you. Just like she's wanted to. Just like she's meant to..."

"Wow, you're way naughtier than I ever imagined, kiddo," he leaned down to kiss her again as they ground together.

"Always been like this... you just never noticed," she ducked his kiss to suck on his chin then nip at it gently.

He groaned and did exactly what she wanted - he fucked her harder. He drove her slender body down into the mattress beneath them, bottoming out inside her at the end of each stroke. It send pleasure-pain tingles through her hips.

She moaned and cooed in response to the more energetic screwing. Her arms flew around his back and she clawed at his skin.

They were fucking now, really and truly fucking in the way they'd both secretly fantasized about over the years. It was wonderful. It was magical. It was everything they'd furtively conjured in their twisted little minds. Of course, it's also when they heard a knock at the front door of the house.

"Liiizzzziiie? Riiiiichiiie?"

Richard might be the family brains but Lizzie, bless her, had always better under pressure. She smirked and snaked her arm out, then pushed the little button on the knob of the bathroom door to lock it.

"I'm in here, Mom," she said loudly. "Just having some trouble with breakfast. Too much pineapple, I think."

"You're not throwing up are you? Is it morning sickness? Are you pregnant?"

His sister rolled her eyes at him. "Why is that everybody's first thought?" she whispered.

He shrugged, keeping quiet.

"No, Mom. I'm not pregnant." Then Lizzie's eyes took on an evil gleam. "At least... not yet anyway."

His sister humped against him, driving herself further onto his cock. Somehow, despite his complete terror, he was still hard. He didn't move as Lizzie humped up again and ground herself against him smoothly.

"You sure you're all right, Lizzie? You sound funny."

"Uh huh... I'm good." Her lips pursed appreciatively as she carefully pumped herself fully on his shaft. Oh god, his sister was enjoying this.

"In fact, I think I'm feeling better already, Mom."

"Good. Good. Where's Richie, honey?"

"Oh, he's around here somewhere."

"Down at the beach?"

"Maybe." Lizzie answered dully, losing focus as she silently fucked herself on him and her pleasure mounted. She hadn't cum yet and she needed to get off desperately. Her little tongue slipped out to the corner of her mouth in concentration and the adorable sight made Richard groan softly.

"His bathing suit is right here on the floor, though."

"Uh, he's got more than one, Mom. He's not running around naked, I promise." Lizzie rolled her eyes and kept using her brother's cock hungrily.

"I certainly hope not."

Richard was going out of his mind. Jesus, this was insane. His sister was fucking him a dozen feet from our mother with less than two inches of pine door between them. There was more adrenaline in his bloodstream than water at this point. His fear and arousal twisted and piled on top of each other. He couldn't hold out against it for long. He looked down at his sister.

Liz knew the signs by now.

"Don't you dare," she threatened softly, glaring up at him.

"Cum inside you? Not on the pill?" he whispered back.

"No, I mean cum before me. Of course, I'm on the pill."

Their mother interrupted from outside. "You still okay, Lizzie? Were you talking to me?"

"Not... what that means... bastard," she complained as she quickly slid a hand down to her clit and started rubbing herself, racing to cum before he gave out.

He won again. He didn't mean to. He tried to hold out. But being in his sister's pussy for the first time and barely avoiding getting caught doing it and just looking down at her tiny tight young body twisting and wiggling beneath him - it was all too much.

He came. Fortunately, Lizzie was right behind him. He felt her insides squeezing him rhythmically and it was almost impossible but he managed to jerk himself out of her to let his cum jet up onto her belly and breasts. Ropes of thick, white semen crisscrossed her body by the time he was finished.

"Shower?" he looked down at her, still gasping.

"Definitely," she snickered, admiring the sticky mess he'd made of her.

They stepped in and shampooed and soaped each other sloppily, laughing as they coated each other in lather. The giggling came to an abrupt stop when Lizzie turned her back to him and bent herself over at the waist.

"Up for more booty practice?" Lizzie looked back at him hopefully, "Believe it or not, I'm still a little frisky."

"Hmmm... I think I need to recharge. My last orgasm was a doozy. But, if you want, I could..."

"You could what?" Her eyebrows knit together in a cute way.

He spun her to face him again and pressed her slender body back against the tile. He slid down to his knees in front of her and kissed her at her stomach. He marveled at the large, keyhole space between her slender thighs before nuzzling her smoothly shaven mound. He'd been thinking about getting his mouth on her since she'd pointed out her hairlessness while standing in the kitchen in her underwear.

"Really?" she smiled down at him.

"Sure, why not? We've done just about everything else."

"Okay, I will take you up on this. Since you're offering." She shifted and spread her legs then laced her fingers through his hair and pulled him to her.

He gently, tenderly ate his sister there in the shower as the water streamed down on them. She was right. She was frisky again. Her little button was swollen and hard already. He teased her a little, exploring the silky softness of her folds with his tongue. She was sweet and tart and musky all at the same time.

He settled into a steady licking at her pebble-like clitoris and she whimpered and pulled her brother into herself urgently. He stroked her long sleek thighs as he lapped at her baby soft slit. Minutes later, her orgasm wracked her body. She dug her fingernails into his shoulder and moaned his name over and over, "Scooter, Scooter, Scooter." Each time she said it, the pitch of her voice rose until it cracked and she squealed softly, breath hissing through her little lips.

When she'd finished and started breathing again, he rested his cheek against one of her thighs, letting her shake out her final twitches of satisfaction.

"You know," she looked down at him finally, "if I had any idea you were so good at that, I would have climbed up onto your face in the middle of the night years ago."

"Bummer huh?" he smirked up at her.