After a few minutes, his softening cock slipped out of her full pussy with a 'slurp', and he lay beside her, stroking her naked body.
"Do you wanna have a shower together?" she asked.
"Ok!" he said with a smile. He felt some movement from his penis at the thought of seeing his sister all naked and wet.
They got out of bed and she scurried to the shower. He followed, watching Amy's naked, skinny ass as she skipped ahead of him. She got the shower going and in no time, they were both standing in the shower, brother and sister. Her hair was soaked and slicked back as water cascaded down her sexy young body. She pulled him into the shower and they kissed, tongues searching as they got sprayed with water. His hands slid down to her smooth, wet ass, squeezing her cheeks, as he grew harder by the second. She felt his manhood grow while it pressed against her belly and she broke the kiss, smiling.
Tingles of excitement raced through her again, originating from her pussy.
"Let me clean you off." she said seductively. What could he say? She grabbed the soap and lathered it up. She caressed over her brother's chest, soaping him all over his chest and arms and stomach. She turned him around and did the same to his back. He could not believe his 18-year-old sister was rubbing soap on his naked ass! He turned back around and she got to clean her favorite part - his cock. He was rock hard, over 6 inches poking into the air, and arousal flowed from her pussy up through her body at the sight. His cock twitched when she grabbed it, stroking him. Using both hands, she caressed his entire cock and bag, soaping it up. She looked up at him, and his lips found hers, his tongue sneaking into her mouth. Her hands stroked his cock and played with his balls as they french kissed. Finally, she broke the kiss, pulling him gently by his cock into the spray of the shower. He rinsed the soap off, and the little minx pushed him back out of the spray and sunk to her knees, smiling.
She looked up at him as she sunk the top of his penis into her mouth. He moaned, clearly seeing her entire face as her hair was slicked back. He watched Amy's mouth slide down his pole, taking almost the entire thing. She looked at him with her dark eyes, her mouth full of his cock. He smiled at her. His little sister. The head of his cock was touching her throat. She began to bob her head back and forth, sliding his manhood in and out of her by now expert mouth. She was so fucking horny, she loved his cock, and it showed by the amazing blowjob she was giving. He loved watching his dick appear and disappear into her mouth. Her lips were gliding ever so gently along his long shaft. If he hadn't cum twice already, he surely would have in no time right then and there. Water was spraying off her shoulders, trickling down her chest over her lovely breasts as she gave her brother a fantastic blowjob. He was dying to worship her body again. Reaching under her chin, he lifted up her head, popping his dick out of her mouth.
"My turn to clean you off." he said. Her pussy flooded at his words. Her heart sped up as she stood up in the shower before him. He grabbed the soap and lathered it up as they switched sides. He began to lather her upper body, hands caressing her soft breasts, feeling her hard nipples as he soaped her up. He kissed her, lips smacking, as he squeezed and massaged her tits.
He rubbed soap over her belly. Ignoring her pussy, to her dismay, he turned her around and began to soap up her back. He slowly eased his way down her back to the top of her ass, staring at its beauty. His hands caressed her ass, lathering it up. Her pussy was tingling like crazy, needing to be touched. How could she be so horny constantly like this?