Bonus chapter: Dr. Fleisman's party

The next night Katherine's face was buried in her friend Allison’s pussy as Dr. Fleisman’s cock pistoned into her asshole. Her daddy was so nice to talk to his friends about her! He was having his cock sucked by Allison, of course.

“Oh fuck, thanks so much for cutting me into this, Jake” her father said, addressing Dr. Fleisman.

“Of course, man, I couldn't leave you out! And of course getting this sweet ass is a nice bonus, too. Hey, how about you fuck it for a bit? I can’t get enough of my daughter’s mouth.”

Katherine registered that this should be strange, for any father to talk about their daughter like that, but Katherine also knew it didn’t matter. They were such lovely daddies. Dr. Fleisman’s cock slid out of her gaping asshole, only to be filled moments later by her daddy’s amazing cock. Dr. Fleisman’s cock was fine, she guessed, but it was nowhere near the size of her daddy’s gorgeous member. Katherine gasped and came, screaming into Allison’s pussy as he pushed deep into her bowls.

“You know, I’m not sure if ten days ago I would have said for sure that turning our daughters into incestuous fuck sluts was a great idea but I have to say, it was! And her asshole is amazing, we should double fuck it while my slut daughter leans what happens when she can’t take a cock in her ass.”

Allison moaned pitifully as her father said this, and Katherine was dragged back from her and up, supported only by her daddy’s cock in her ass as Dr. Fleisman came around and lined his cock up with her asshole. Katherine sighed as she was lowered down onto his cock, quickly relaxing her asshole as she had been training to do, so he could slide into her next to her daddy, orgasming as he bottomed out. Katherine now had two cocks in her ass! She was so glad her daddy had helped her stretch her asshole this week, he was always so sweet! Allison moaned as she was left alone, and her daddy chided her.

“See, baby? This is why you need to train that little asshole! If you can’t take John’s cock in your ass, how can you take two? Now you sit there and think about how you’re going to train your little asshole while Katherine gets fucked.”

Katherine was delirious with pleasure as she was bounced on the cocks, getting fucked by two big hard cocks in her ass. She was sad for Allison, but she clearly needed to do some stretching.

“If you’re a good girl you can lick the cum out of Katherine’s ass when we finish there, okay baby? Are you a good girl?”

“Okaaaaay daddy, I’ll train my asshole.”

There was still a little petulance in her voice, Katherine thought. How was she expecting to be a good girl if she was being such a brat? Dr. Fleisman didn’t seem to mind, though, and his cock swelled in Katherine as his daughter said that. Maybe he liked her bratty? Katherine's mind spun around the fact that the two of them so quickly turned into perfect fucktoys for each of their daddies. They were so lucky!

“Okay baby, you can suck my cock and get me ready to cum while Katherine's daddy fills her asshole, okay?”

“Mm, yes daddy!” Allison responded, as Dr. Fleisman’s cock slid out of Katherine's asshole. “Thank you daddy!”

Her slurps filled Katherine's ears as her daddy lowered her onto her knees on the bed and then proceeded to fuck her asshole with so much power, it reminded Katherine of the first night he fucked her. She was in a constant state of orgasm as she felt him swell and her asshole filled with warm cum. He paused for a moment and then slid out. The slurping sounds paused for a moment and then Katherine's asshole was filled again, Dr. Fleisman’s cock filling her ass nicely.

“That’s right baby, clean that cock good.”

Allison's giggles were muffled as she was put to work on Katherine's daddy's cock. Dr. Fleisman’s cock quickly swelled in Katherine as she did, filling her a second time with hot cum. Oh fuck it felt good, Katherine thought, her pussy loved her ass being filled. The slurping sounds paused, then restarted, and then stopped again as Katherine felt a warm tongue on her pussy, sliding up to catch the cum dripping out of her aching asshole.

“So you said Frank was in on it, too?” Frank, frank, was that Mr. Grand? Megan’s dad?

“Oh yeah, for sure. And Megan’s already taken his and her brother’s cocks in all her holes. She’s a real double-cock freak.”

It occured to Katherine that the talk had gotten cruder over time. Now they were basically just talking about them like mobile sex toys.

“We should take these little sluts over there and have a party, then! Maybe she’ll like three cocks in her even more. These two can take care of each other.”

For a last moment, Katherine thought that this wasn’t right. But then the feelings in her pussy as her friend licked their daddys' cum from her ass overwhelmed her, and she never worried about it again.