Climbing off of Sara’s face, Kelly moved down to where she could see John’s cock moving in and out of Sara’s pussy.
“That’s it, John, fuck her, fuck her good,” Kelly said, delighting in the sight of her brother’s cock sluicing in and out of Sara’s newly deflowered pussy.
Sara was moaning and rolling from side to side as John slowly but surely fucked her, stroking his cock deep into her with each thrust, then pulling it almost all the way out before plunging back in again.
“It. Feels. So. Good.” Sara managed to gasp as John continued to fuck her. “Don’t. Stop.”
“Not until I’m ready to cum,” John agreed, picking up his rhythm as Sara’s pussy adjusted and began to make it easier.
“You’ve got to cum in her mouth,” Kelly said, her eyes wide and bright. “It’s the only way the first time.”
“Oh, oh, oh,” Sara cried out, arching her back as she came for the first time, her pussy spasming on John’s cock as he thrust in and out of her pussy.
“That’s it, Sara, cum like crazy,” Kelly encouraged her, reaching over and massaging Sara’s breasts, her nipples hard and sticking up off of her chest. “Fuck her, John.”
“I’m going to cum,” John said, his face screwing up as he tried not to lose control.
“In her mouth, in her mouth,” Kelly said, tugging at him. “Don’t screw it up for her.”
Suddenly John pulled his cock from Sara’s pussy and climbed up on top of her so that he was straddling her chest with his cock pointing at her face. Sara opened her mouth and John slid his gooey cock into it, almost exactly as he exploded, cum shooting into Sara’s mouth as his cock banged against the back of her throat. Sara closed her lips on his cock and struggled to swallow his cum as it filled her mouth, tasting herself on his cock for the first time along with his cum. When John finally stopped cumming, he gently disengaged himself from Sara’s mouth, climbing off of her body and sitting next to her on the bed, staring at her laying there with her legs wide apart, her pussy red and throbbing, her face smeared with cum and her lips puffy.
“Well, Sara, how was that for you?” John asked, smiling at her.
“Oh, John, that was so wonderful,” Sara said, struggling to sit up. “I can’t believe how much I liked it.”
“Maybe you understand your parents a little bit better now,” Kelly said, smiling at her. “Your mother loves John’s cock.”
“I can see why,” Sara sighed. “I love it, too.”
“Well, your father’s got a pretty nice cock himself,” Kelly said. “I’m sure he’d love to fuck you if you want him to.”
“Fuck my father!”
“Sure, why not?” Kelly asked. “It’s just a cock. And it’s not like you don’t like him or love him, is it? You’re not trying to make babies, just fuck and have fun. That’s why I love John so much.”
“You two really fuck each other?”
“All the time,” Kelly assured her. “In fact, if you hadn’t been here now, that cock would have been filling my pussy instead of yours. I gave it up for you.”
“Oh, Kelly, are you really a friend?”
“Sure, why not,” Kelly agreed. “We have a lot in common, I think.”
“I better get home,” Sara said, getting to her feet. “I can’t wait until the next time,” she said, running her hands down her new body. “We can do this again, can’t we?”
“Sure we can,” John replied. “I’ll fuck you any time you like.”
“Yeah, and next week maybe you can surprise your parents and join us,” Kelly suggested.
“Oh, that would be something, wouldn’t it?” Sara laughed as she pulled her clothes on. “Mom and dad watching me fuck.”
“You’ll probably be fucking and sucking them,” Kelly observed dryly.
After Sara left, Kelly and John just lounged on her bed naked, not doing anything but talking. There was suddenly a knock on the door and before either of them could react, Karin opened the door and entered, a look of total shock on her face as she saw her twins naked together on a bed.
“What do you think you’re doing like that?” she asked, angry.
“Oh, mom, chill out,” Kelly said with a laugh. “Why pretend? John just fucked Sara so she wouldn’t have to be a virgin anymore and I sort of helped. Now we’re resting, okay?”
“No, it’s not okay,” Karin exclaimed, exasperated. “We talked about this.”
“Yes, we talked about it and didn’t agree,” Kelly said. “And we don’t agree. You’ve shown us that it’s okay to have sex with whomever you want, whenever you want, as long as dad doesn’t find out. Well, that’s what we’re doing. And if we feel like having sex together, like you and John have done more than once, that’s what we’ll do,” she said, reaching over and grasping John’s cock in her hand. “And you’re always welcome to join us, no matter who’s involved.”
“Don’t you understand how wrong this is?” Karin asked desperately.
“It doesn’t seem wrong to me,” Kelly said, leaning over and sucking John’s cock into her mouth. “In fact, it tastes pretty nice to me, what with Sara’s pussy juice all over it.”
“Well, I won’t tolerate it,” Karin said firmly.
“Look, mom,” Kelly said, lifting her face from John’s cock. “We’ve tried to be nice to you about this but you’ve been nothing but uncool. So this is how it’s going to be. We don’t want to hear another word from you about what you think of what we’re doing. You’ve set the example. If you bother us again about this, we’ll tell dad you’ve been fucking Tom every morning after he goes to work. I’m sure you don’t want that, do you?”
“You wouldn’t dare!” Karin said with a real feeling of fear in her belly.
“Oh, of course I would,” Kelly said with a laugh, “if that’s the only way to keep you in line. And further, if we want you to join us, and we invite you, you’ll join us.”
“What do you mean?” Karin asked, stricken.
“That means if John wants to fuck you, you let him. If he wants to fuck you in the ass, you let him. If he wants you to suck his cock or he wants to suck your pussy, or for that matter if I want you to suck my pussy or I want to suck yours, you will. Or I’ll tell.”
“You don’t mean it.”
“But I do,” Kelly said, sitting up, a smile on her face. “I don’t want to, but if you don’t grow up, I will.”
“Oh, god, what have I done?” Karin sobbed, her face in her hands.
“You fucked Tom after we went to school today, didn’t you?” John asked suddenly, stroking Kelly’s head as she resumed sucking on his cock.
“How dare you!” Karin exclaimed, her face flushing as she remembered that morning.
“See, you’re such a hypocrite,” Kelly said, lifting her face from John’s cock. “Now either undress and join us or go away,” she said, again swallowing John’s cock.