"Here you are, darling," he whispered, holding his cock against her cunt.
She reached down and rubbed its head between her throbbing cunt-lips. Jack gently pushed it in until Jess snuggled against him and he felt the boiling heat of her luck-tunnel. He pushed the full length in, grinding his groin against her clit.
"Oooooh, darling, that's what I need!" she gasped.
She pressed her tits against Jack's chest and tightened her legs around his waist as he began a steady fucking motion, using the full length of his cock.
Jess became more and more active and her face was tense with passion.
"Ooooh, Jess… we fuck so beautifully… together!" Jack panted, hardly able to string his words together between breaths. "It feels… we've been… fucking all… our lives!"
"Oh fuck me, Uncle Jack… fuck me, Daddy!" she cried.
Jack stopped his fucking and grasped her hair to hold her head still.
"What did you say, Jess?" he demanded.
"Mom told me you could be my father because you were fucking her when she became pregnant."
Jack looked at her for a moment, then resumed his thrusting at her cunt.
"You don't mind if I call you Daddy when you're fucking me, do you? It makes it more exciting."
"No I don't mind."
"Then fuck me, Daddy, like I've never been fucked before!"
Jack resumed poking her as hard as he could. He mightn't have had the chance to be a good father to her, if he was her father, but he could at least become a good lover.
He drove his prick into her with renewed vigor, clutching her shoulders and slamming his balls against her. She responded by yelling: "Fuck my cunt, fuck my cunt, fuck me, fuck me!"
Jack felt her young body go tense in his arms. His balls churned and a moment later floods of his cum began to spurt into her.
"Oh my god, Daddy, that's beautiful, that's beautiful!"
Her arms and legs gripped him more tightly and she suddenly let out a weird, sensual scream that made Jack's pulse race.
For what seemed minutes, they clung together in the ultimate sensation of sexual passion, then their bodies collapsed onto the bed, entwined together.
A few moments later Nell crept into the room and slid into the bed on the other side of Jack. She put her arms around Jack and kissed him. Jack turned onto his back and put one hand on Jess's cunt, the other on Nell's.
The girls each had a hand on his prick and balls. "There's nothing like family togetherness," Nell whispered.
"There's nothing like Daddy, Mommy, and baby," Jess said quietly.
Nell and Jack remained silent!