He pounded his cock harder as he thought of her little ass and how he'd like to stick his tongue and maybe his cock into it. Just as he was about to spew out cum all over his belly his little sister burst into the room. She was stark naked and dripping wet. She was obviously upset about something because she didn't even notice that he was naked too and had his hand around his little boner.

"Big brother," she cried, "come quick, the bathtub is overflowing and I can't shut off the water."

"Rats," he said, mostly to himself, as he got up, letting his cum recede back into the recesses of his loins.

He pulled up his pants and followed Sally into the bathroom, noticing how cute her little ass was. 'Rats,' he thought, 'too bad she's my sister, otherwise I'd fuck her right now.'

There was indeed water all over the bathroom floor and the valve was indeed stuck. He grabbed the valve and gave it a turn, but it didn't budge so he began a back and forth motion trying to unstick it. Finally, after putting his whole body into the effort along with a great deal of grunting and groaning he managed to shut off the flow from the tap.

"Grab a mop, sis, and let's get this mess cleaned up before mom gets home."

"Gee, big brother," said Sally, "I never noticed that your thing was that big before."

"Huh? Uh, what are you talking about?" So she had noticed.

"Your boy-thing," she said, "you were playing with it."

"Oh, yeah, that." 'Let's just drop it, o.k. sis?' he thought.

"Let me see it again," she wouldn't let it lie.

He looked at the naked little girl. She was his little sister, but she was really cute. Her blond hair much softer and fuller than his own stringy mop, her blue eyes always wide and curious. He especially liked her pert little ass. The cheeks were firm, small, tight and soft and smooth as glass. He wanted to spread them and look at her tight little anal pucker. And her mouth with its full lips, just right to fit around his cock, the mouth itself plenty large to accommodate his boner. He was hard again.

"Well, o.k., but you've got to let me have a closer look at you too."

He dropped his pants and let his little erection flop out.

"You can touch it if you want," said Charlie Brown.

Sally, who seemed not to hear this, was already encircling his cock with a tentative hand. She looked at it as though she were inspecting a fruit at the market. Then she surprised by putting her soft lips around the head. Charlie Brown smiled as his little sister started to suck on his little boner, toying with his little balls with one hand.

"Wow, sis," he said, "that feels great. Where'd you learn that?"

"Frmph mflimfufs," she responded, his cock completely inside her hot little mouth.

"LINUS!?" Charlie Brown shouted, "Linus showed you this?"

"Mmhmm."

He was stunned. He and Linus had talked about sex before, but he didn't realize that Linus was active...that is...with his sister. Wow! He felt his little balls pull up against the base of his prick as his cum began its journey into the little shaft to explode into his sister's mouth. He wanted to see it shoot.

"Pull it out, sis," he told her, "just jack me off and hold the end up to your open mouth."......(cont)