Kat watched in horror as Zoe looked up at her and bent her head low and began to run her tongue firmly and slowly up and down the girl's clit through her panties. It felt delicious.
"A few months of what?" Kat managed to say, her head swimming and her pussy throbbing.
"A few months of being my little girl" said Joe. "Of learning to beg for daddy's cock."
"Nnnnoooo," said Kat, horrified. "I won't."
Joe pulled hard on the belt, yanking her face towards his.
"You fucking WILL, baby girl," he whispered softly. "Unless you want to go to prison along with your father."
"It gets better," smiled Zoe, coming up for air. "I lied about your father. I seduced him. I love fucking him. I love feeling him spunk in my mouth as he talks to you on the phone. I've been doing it for months."
"That weekend I told you about? I picked out your mother's bridal panties and I made him fuck me in them. It was sensational. He fucked me up the arse while I made him call you both and tell you he loved her."
Zoe drove her tongue deeply, expertly into Kat's clit, causing tendrils of joy to sneak up into the teenager's mind along with revulsion at what she was hearing.
She looked up, "Although, the best sex we had all that weekend you were away was in your room, funnily enough."
"I fucked him wearing your school outfit. In your panties. On your bed. He called me by your name. He loved it. He loved fucking you."
Kat watched, helpless, as Joe began to show her a video on his phone.
It was shot in her bedroom. Hers. Kat's. In it, Kat could see Zoe straddling Sam on her bed, forcing her tits into his mouth and slowly grinding up and down on him.
She was wearing what looked like Kat's own school uniform and purring down at him as he sucked her tits "That's it daddy. Fuck your kitty-kat. Fuck me hard and slow."
"He made me wear your uniform all day. He came all over my face that time" giggled Zoe. "Naughty boy. We had to get your blazer dry-cleaned so you wouldn't know."
So it was all lies, thought Kat, her shoulders slumping. All this, a deception aimed at what? Tears streamed down Kat's face as Joe tightened the belt round her throat and pulled her over to him.