David examined between her legs. There were a few strands of pubic hair but they hid nothing. He'd been yards away from the twins at their closest. He'd never been this close to a cunt before now he could get a good look at what was between the outer lips. He wanted to get on his knees and examine it more closely but didn't have the nerve. He saw the outside slit, with little beads of moisture all along it. It was puffed out some and he could see some pink inside.
His hand moved between Susan's legs and he ran his finger along the outer lips of her cunt. It felt real slick and slippery. The slit opened some under his finger pressure and the inner lips were exposed. His finger probed and slipped between the inner lips of her cunt. He felt Susan's hips jerk and pulled his finger away. He was afraid he'd hurt her.
Susan wasn't going to let David get away. "Oh no, David, don't pull away, push your finger all the way into my HOLE. That felt real neat. It felt much better having you do it than when I do IT to myself. Can I do IT to you? What John did to your THING today? Can I make the STUFF shoot out like he did?"
Susan didn't wait for an answer, she started pumping her hand on his penis. David was incapable of answering but he wasn't incapable of putting his finger back into Susan's HOLE. He pushed his finger in and out of that tight, slick HOLE. It didn't seem big enough for a penis to fit into but he knew that was where a penis was supposed to go.
There was a hard bump above the inner lips and David used a finger of the other hand to rub it. The twins always rubbed each other there. His sex books said that it was real sensitive. The book must be right. Susan jerked her hips and squirmed.
David was squirming himself. Susan had grasped his penis very loosely and her pumping was more a tickle than a rub but the friction it caused was more than enough to bring him to a climax. He felt Susan's HOLE contract around his pumping finger and Susan started to moan. She watched very closely as; spurt, spurt, spurt, dribble, dribble, dribble; his STUFF shot out of the slit in the tip of his THING.
Susan looked at the grayish white viscose fluid in her hand. She'd seen the boys licked it off their hands that afternoon. She sniffed, touched it with the tip of her tongue, took a tiny sip, and licked the rest of it up.
David went through the same gyrations. He paid attention to what the twins had done that afternoon. He withdrew his finger from Susan's HOLE, sniffed at it, touched his tongue to his finger, and sucked his finger into his mouth. The two kids looked at each other, blushed, then grinned. They knew they were being very daring.
Susan got the conversation going again. "I don't know how I got the nerve up but I'm glad I did that. I don't want to learn math too quick. You can come up here every night and help me."
David was finally willing to discuss what they had been doing. "Gee, I'm glad you worked up the nerve, I never could have done it in a million years. Uh, I don't know about doing it every night. John might suspect something if we did that. Maybe we could do it twice a week though."
The kids pulled on their pants and continued with the math lesson until bedtime. They didn't say another word about what they had just done. They didn't even discuss the need for secrecy. Each trusted the other not to let anyone know what they were doing. Both were sure this wasn't the last time that they'd do things together.
Neither of them knew where what they were doing was going to lead, but they were willing to let nature take its course. They understood that when they were ready they would go on to something else.
Following the precedent set the previous night David went down to collect John so the could shower and go to sleep.
He made a general announcement to the room at large that he would have to spend a couple evenings a week from now on helping Susan with her math. He basked the praise that his grandparents gave him again but this time he felt a little guilty about it. He would be tutoring Susan in math, of course, and David had every intention of doing that.
However, David knew that math wasn't the only subject they would be studying. Susan and he were going to do some experimental lab work on the subjects covered in his sex textbooks. That was a lot more interesting than the math that they would be doing anyway, and it would probably take a lot more time.
John was surprised that David's penis wasn't hard when they got into the shower. It got hard in short order, however, and they fucked each other's thighs. They went to bed and woke up to jerk each other off.
Ted jerked off twice thinking over the things he'd recently seen. He liked jerking off with David and his brother and he was fascinated with the show that his twin sisters put on.
The twins plotted what they could do to make the shows more interesting. They weren't bored with what was going on they just wanted to make it more exciting. They discussed it while they fingered each other then sixty nined. They hugged and kissed each other while they were recovering.
"Uh, Joan?"
"Yeh?"
"That would be even better if the boys were watching us, don't you think?"
"Uh, yeh. I don't know if I'd have the nerve to do it though."
"We can do it. The boys eat each other's cum and we suck on our fingers after we finger fuck each other. Cunt lapping isn't that much more."
"I guess so. I wonder what the boys will do if we do that?"
"Gees, I don't know. I don't guess they would suck each other's cocks. I'm sure they're not gay. We'll just have to be satisfied with the fun of having them watch us."
By this time the twins had worked themselves up to another sixty nine. They lapped each other's cunts and fell asleep.
Susan lay in bed with a grin a mile wide on her face and fingered herself THERE. That good feeling felt a lot better when David put his finger THERE. It was fun making the STUFF shoot out of that cute little slit in his THING. She liked the taste of his STUFF. She wondered if it would taste the same if she sucked it out of his THING. If she sucked his THING would David lick her down THERE? She gave herself the good feeling twice more, sucked her finger dry, and fell asleep.
CHAPTER TEN
The next two days weren't swimming days, David and John followed their normal routine. One day they had the calves suck them off and the next day they fucked the ewes. At night the younger boys played their usual games with each other, and the twins did the same. Ted and Susan had had to be satisfied with what they could do with their own hands. All the kids were anxious for the next swimming day. David and Susan were impatient for the next tutoring session.
Saturday dawned sunny and warm. David and John had their morning jerk off, cleaned up, did their chores, and went to breakfast. It was spring and there was a lot of work to be done around the farm. Pa Snyder laid out the day's chores for the boys and Ma Snyder did the same for the girls. The boys were to do the spring fence inspection in the morning. It was baking day and the girls were to help in the kitchen.
David's grandparents were very tolerant and they remembered that they were young once themselves. They left the afternoon free and suggested since it was such a nice day, they might want to go swimming. All the kids looked at each other except Susan. She stole a look at David and kept her eyes down.
She wanted to swim too, but she wanted to sneak down to the pond and watch them do THINGS. If she went with them they wouldn't do anything. The kids, with a great show of nonchalance, reckoned that they just might do that. Susan's mind raced, she looked around, blushed, and said she better not today. Ma Snyder said that was a shame but no one else seemed to take notice.
The boys took off in the jeep. They got to the sheep meadow, looked at each other, stopped and got out of the jeep. Ted suggested it was nice enough to take off their pants. Nobody would see them, and it felt better if you pushed your bare crotch up against the ewe's rear end while you fucked her. They each chose a ewe and moved in behind her.