David liked Susan's tongue running up and down his penis. He turned his attention back to her clitoris. He knew that he and John could tease each other with gentle tickling, he would try that on Susan's clit only he would use his tongue instead of his finger.
He tickled the tip of it with his tongue and got a very satisfactory reaction. He pushed the fringe of skin back with his lips, gently grabbed her clit in his teeth, and rubbed it with his tongue. Susan wiggled again and he kept up a gentle sucking.
Susan licked around the head of David's penis and rubbed under the rim with her tongue. Every time she licked past the little slit his body quivered. She sucked some of the skin under his pisshole into her mouth, rubbed it with her tongue, and got as satisfactory a reaction from him as he was getting from her. She licked up another drop of pre cum then sucked on his balls some more.
David was getting hotter and hotter. He couldn't take very much more of this erotic play but he didn't want to hurry Susan up either. He wanted what was happening to last as long as possible. He sucked Susan's inner cunt lips into his mouth and massaged them with his tongue. That really made her hips wiggle.
Susan's mouth moved to the head of David's penis, his hips lurched and he forced the head of his cock into her mouth. He hardened his tongue and pushed it as far between the inner lips of Susan's cunt as he could.
Susan responded by bobbing her head down over his penis. She lifted her head again and when only the head of David's penis was left in her mouth she massaged it with her tongue. Her own hips flexed under the treatment she was receiving from David's tongue. David pumped his penis into her mouth again and the head pushed into her throat. She almost gagged and swallowed around it while David sucked on her clit again.
Both of them were much to occupied with each other to hear the door open. John stood in the doorway and watched what David and Susan were doing for several minutes in wide eyed amazement. His penis jumped out against his pants. He rubbed it once then backed out of the room and softly close closed the door.
Both kids lost control. David pumped his penis into Susan's mouth as fast as he could. Susan moaned around his penis and rubbed her cunt all over David's face. David grabbed her hips to keep his mouth on target and Susan bobbed her head as fast as she could. David lasted a lot longer this time. He'd shot off less than a half hour ago. Susan shuddered and had orgasm after orgasm. David fucked his penis into her mouth, sucked Susan's clit, and lapped her cunt as hard as he could.
Spurt, spurt, spurt, dribble, dribble, dribble; David's cum jetted into Susan's mouth. She swallowed it as fast as it emerged from his pisshole and sucked on his deflating penis to get the last drops out of his balls. She could suck David's cock and drink his cum all day long.
David lapped up all the cunt juices he could. He tried to lick Susan's cunt dry but found out it was a loosing cause. Susan could produce lubricant much faster than he could lap it up. David gentle licked at her clit as her orgasms receded and she gently sucked on his penis as it shank down to it's soft state. Both of them were exhausted but they just didn't want to stop.
They rested for a few moments just as they were, David with his nose buried in Susan's cunt and his penis soaking in her mouth. They moved around and hugged and kissed some more. Each could taste their own sex juices on the other's lips and licked at them. David had read about french kissing in his sex books and Susan had heard about it. They tried it and thought it was neat.
David sucked on Susan's tongue for a while then she sucked on his. Each time their tongues touched it felt as if an electric shock went through them. Susan's scheming little mind was still going a mile a minute. Now she'd gotten this far she wanted to go further.
Now that she'd gotten David to do things with her, Susan was ready to broaden her horizons. "David, do you think John and Ted would let me suck their cocks? I'd like to suck their cocks as much as I like sucking yours. Do you think they'd let me do it to them? I'd like to find out what their cum tastes like."
David thought things over. He was sure John would be willing to have his cock sucked but he wasn't sure about how he take having his little sister do it. Both John and Ted seemed very protective of Susan and John had rarely said anything connected with sex about Susan the way he often did about the twins. He wasn't sure what Ted would think about having his littlest sister sucking on David's cock either. He might get mad at David for doing things like that with Susan.
David went back over all the information he had. "Well, I guess John would and I think he'd like to lap your cunt too. He said he'd like to try lapping a girl's cunt but we were only talking. I can't be sure he would if he had the chance. I don't know about Ted, John and I have only been doing things with him for the last few days. I'd have to get to know him better and talk to him some more before I'd even say anything to him. Do you want me to say something to John? I know he wants to see your cunt and feel it, he's told me that. He said he'd like to finger fuck you and have you jerk him off too."
The two of them pondered the subject for a few minutes and Susan decided that she did want to do things with John but maybe it was too soon. They'd wait a while and see what happened. It was getting late and they realized they'd been together for a long time. They quickly got into their clothes and went downstairs. David saw John give him a funny look but didn't pay much attention to it. He had too much to think over to wonder what it was about.
CHAPTER TWELVE
In the city David had stayed up late on the weekends, but that didn't work too well on the farm. The cows had to be milked and the chickens fed no matter what day of the week it was and it had to be done the same time every day. He wasn't surprised when John suggested they go to bed shortly after he got downstairs.
It wasn't till they were on their way upstairs that David realized he wouldn't have a hard on when they got in the shower. They always played with each other's penis when they took their shower and John was bound to ask questions. How could he explain why he didn't have a hard on and not give away what had happened with Susan? He couldn't do very much about it, he would just have to see what happened and go along with it.
The boys went into the bathroom and stripped for the shower. David's penis was soft but, to David's surprise, so was John's. John washed David's back but didn't try to soap David's penis. David washed John's back and was surprised when John pulled away when he started to soap his penis. John looked at David and David raised his eyebrows.
"Uh, wait till we get to bed, David, okay?"
David didn't know what was bothering John but figured he find out soon enough. The boys rinsed off and dried without their usual sex play, got into their pajamas, and went to the bedroom. John didn't take off his pajama bottoms so neither did David. They got into bed. David sat back against the headboard and waited for John to start the conversation.
"Uh, David?"
"Yeh?"
"What does a cunt taste like?"
David was shocked. He sat there with his mouth hanging open. How did John know he lapped Susan's cunt? He was conscience stricken. John had shared everything with him. The calves, the ewes, the games with the girls, the jerk off sessions, and even the thigh fucking. Now he sneaked off and did things he hadn't shared with John. He didn't know how to answer.
Now he felt bad about what he had done. David wondered how to apologize to John and whether John would accept his apology. He was more astonished when John blushed and started to apologize to him.