You could tell just by looking at them that this wasn't the first time Don and his daughter had made love. There was a comfort, an ease, a familiarity to their coupling. The way their bodies moved together, the way they touched and caressed each other, the way they kissed. Clearly these were two people who had fucked many, many times before.
Amy was on her hands and knees, naked, as he pounded away at her cunt. You could see his beefy cock glistening, covered in her juices, as it sawed in and out of her tight gash. She was still carrying some of her baby weight, but that only made her body seem even more sumptuous and inviting; his fingers sinking into that luxurious, glowing flesh.
"Oh Daddy, oh Daddy, oh God, Daddy!" She whimpered, speared on her father's dick like the nasty whore she was.
He reached under her body, grabbing hold of her fat, succulent tits; squeezing and fondling, her rubbery nipples wet with milk. Daniel, her youngest child, only a few months old, was asleep in his cot in the bedroom next door; blissfully undisturbed by what his mother and her father were doing.
Don's body was burly and powerful. He was still fit and muscular, despite his age, and his hips powerfully pistoned back and forth. His panting became more pronounced as their fucking increased in intensity. He was close to cumming, and he wanted to push himself deeper and deeper inside his daughter's buttery snatch.
"I'm gonna cum, sweetie. I'm gonna cum!" He grunted.
"Cum inside me, Daddy." She replied, her voice hoarse and straining. "Cum inside your little girl! Cum inside my cunt!"
So, he did. And then they collapsed into a heaving pile on the bed.
A few minutes later, after the gasping and wheezing had subsided somewhat; after a few tender moments where they kissed and stroked each other's faces; the two incestuous lovers held each other tightly, their bodies wrapped together like a strange puzzle made of flesh and sweat and cum.
"How long do you think we have?" Amy asked, her fingers playing with the silver and black hairs on her father's chest.
"I don't know," Don replied, his hand stroking lazily up and down the naked expanse of his daughter's sticky back and buttocks, "You know what your mother's like. She can't help but spoil her granddaughter. She'll probably take Ashley for an ice cream or something, after they finish at the park."