Steve Masters - Mom_s summer swap camp

Yes, that had been the first time, and that was why Billy had lately not been fantasizing about Debby as often as he used to when he masturbated.

Because the first time had not been the last!

How could anyone expect that it could, considering the unbelievable joy it had given the two Richards children?

No, there had been many other times as well, as if the brother and sister had discovered a new toy which, in a manner of speaking, they had. And as the months passed, the sexual intimacy between the two children had increased. While they had never actually balled, they had managed to invent a number of variations on their side-by-side diddling adventures.

Sometimes one of the kids would read to the other from a porn book, read a particularly hot scene, while the other masturbated to a climax.

But the most enjoyable game of all was when brother helped sister get off, or vice versa. At times like these, one of the children would lie on the bed and the other would masturbate the other to climax, but that wasn't all. While Debby was pumping on Billy's hard young shaft, she would paint fantasies for him in the most vivid descriptions she knew, or sometimes she would relate to him her own sexual fantasies. And of course, Billy would do the same for her, whispering hotly into her ear the things she liked to hear while he pumped his fingers furiously in and out of that hot little cunt that never seemed to be able to get enough.

Yes, this was the sex life the two Richards children had been sharing for the past six months or so, and they both found it to be quite a satisfying one. There seemed to be no reason for either child to imagine that anything would change, simply because they had moved from Milwaukee for the summer.

No reason at all…

"Billy, are you at it again?"

At the sound of his sister's voice from across the bedroom, Billy temporarily discontinued the mental vision he'd been holding of his mother getting her rocks off. He stopped stroking his pecker and looked across the room.

Not that he could see anything. It was pitch black. The nights up here in Door County weren't like they were down in the city. Up here there were no street lamps or headlights driving by every few minutes. There was nothing but total stillness, and it was so dark that you couldn't see a hand before your face.

Billy and Debby had been asked by their mom before coming up here if it would be all right with them if they shared a bedroom. The cabin that served as the office and their living quarters was small, much smaller than they were used to, and had only a tiny front room which also contained the desk for guests to register, and two small bedrooms, one on each side of the front room.

Naturally, the kids had not minded at all. In fact, they were more than happy to adapt. It made their sex games that much easier to play!

Debby was in her own bed across the room, and Billy had thought she was asleep when he'd started toying with his cock. Shit, sometimes it was still fun to do it the old way. Getting yourself jacked off by someone else was a trip, but when you did it yourself, you could time it just so. And besides, this time he wasn't sure if he should confide in his sister what he was thinking, the way he usually did. He wasn't sure it would be night to tell Debby what he had seen Mom doing to herself that afternoon behind the cabin.

But he hadn't counted on his sister's keen ears, and when the slick sound of his damp palm sliding up and down his erect shaft had reached her ears, she must have known immediately what was going on.

"J-just having a little fun, Sis," he answered softly, with a chuckle.

"Is Mom asleep?"

"I think so. All the lights seem to be off."

"Do you want any company over there?"

The way Debby asked the question, Billy could tell that she expected a yes answer but, with his hand still around his dick, he took a moment to reply.

"I-I don't know, Sis," he said finally.

"Uh, okay… nothing's wrong. I… just feel like getting my own self off tonight, y'know?"

"Sure, Billy," she said. "Sure."

There was silence for a moment after that, and then the rustle of material from Debby's side of the room, and Billy knew what was happening. In another instant the smell of aroused cunt drifted across to him, and he knew that Debby was beating herself off too.

Aww shit, he finally thought to himself. What the hell! He knew his kid sister well enough to know that she had a kinky streak a mile wide. There was no doubt that Debby would really get turned on if he told her what he had seen that day. What would be the harm, really?

No, he decided, he was just being selfish in keeping a turn-on like this to himself.

"Heck, Sis," he said at last, keeping his voice at a low whisper. "Light a candle and come on over here. I got some things to tell you that'll give you the cum of a lifetime!"

With a little laugh of delight, Debby reached over and struck a match and lit the candle at her bedside. The children's bedroom was instantly illuminated in a warm glow. Billy saw that his sister was nude, and he felt his prick give an extra little throb as she came off her bed and came over to lie down next to him on his.

"Want to smoke a joint?" he asked.

"Sure," said Debby. "This sounds like it's gonna be a real fun night!"

Billy smiled and squeezed her young round ass. "It always is with you, Deb," he told her.

Then he reached under the mattress and came out with the pot. He'd been smoking for almost two years now, and he'd turned Debby on shortly after that first sex session they'd shared earlier that year.

Billy lit the joint, took a long toke and passed it to his sister.

"I saw something this afternoon that really freaked me out," he said as he let the smoke escape from between his lips. "It really freaked me out… and it really turned me on."

Debby took a drag on the number and passed it back.

"It must really be something," she said. "I can't imagine what you could see out here at Sunny Acres that could be considered sexy."

Billy grinned. "Oh yeah? Well, dig this. It's not only what I saw, it's who I saw doing it!"

Now Debby's interest was really aroused. "Well, let's hear it, big brother, let's hear it! Who did you see, and what were they doing?"

Billy took one last look at the closed door of their bedroom to make absolutely sure there was no chance of their voices carrying to the other part of the house. Then he leaned over closer to his sister as he spoke.

"I saw Mom out behind one of the cabins," he said softly. "She was listening to something inside – probably someone balling – and… she was beating herself off!"

The pot the kids were smoking was good pot, and both of them, after just a few hits, were already experiencing the lighthearted, sensuously warm glow that only good pot can deliver.

As soon as Debby heard her brother's news, she felt a lovely heat begin building immediately down between her legs. The sensation was heightened by the marijuana. Debby had discovered that first night with her brother that watching another person masturbate really turned her on. But she had never thought of her own mother getting herself off… and now that she did think of it and imagined the sight Billy had seen in her own mind's eye, the vision that came to her was deliciously exciting!

"Oh, Billy, really? Wh-what did she look like… was she laying down, or standing up… or what?"

Billy felt his cock begin to rise. This was due in part to the sight of his sister sitting there on the bed with him. The flickering light of the candle caused her titties and thighs to form lovely, mysterious shadows. But his excitement was also due to the fact that he knew Debby liked to hear about other people playing with themselves, and with this in mind he let his voice drop to a low, husky whisper as he gave her the details of the afternoon.