(author's Note: This story is entirely fictional and the sexual activity is between two adult individuals.)
Rachael just can't hold in a laugh as Dad hurriedly brought his chair over next to her, when she spotted his swinging penis through the flaps of his bathrobe. The two paused to look up to see if Mom noticed the sound of the heavy chair on the hardwood floor. But the running water at the sink probably helped them as her back stayed to them as she washed her plates and utensils.
"First, where is it?" she demanded to know.
Dad raised the fat envelope up from out his robe's side-pocket and then back down.
"Satisfied now?" he smiled, wasting no time in parting his robe to expose his hairy self to her.
"Now...shall we get things going then?!" he shook his leg with wild festivity.
She shook her head at his impatience over it all and slowly reached her arm out. He hunched over her texts and notebook on the table with pretend interest in helping with her studies, while he hardened quickly to her very gentle yanks.
At about this time, Mom turned off the water and started toweling dry her stuff.
"Honey, is she giving you a hard time with that homework again?" she asked, her back half-turned to them as she now returned items to the drying rack.
Rachael took this crazed opportunity to have a little humor.
"Am I really giving you a HARD time, Daddy?" she grinned shrewdly at him, feeling his full boner break the light ring formed by her thumb and index finger.
Marvin, though, wasn't really all there when his daughter turned to him. She was surprised to see him all glassy-eyed and sweaty on the face. His legs had shot out and clasped themselves together before him. He sat back in his chair as his hard, squeaking grip upon its corners told her of his forthcoming.
Luckily, Mom wasn't really into it for a response and just excused herself off down the hallway for her usual morning shower.
"Don't hold your poor Dad up too long now, alright Sweetie?"
Rachael promised Mom she wouldn't and she immediately did just that. She instantly let go her grip on him, remembering well the arrangement between them.
"Damn it, Honey...I nearly thought you were going to short-change your old man for sure!"
He took himself off his chair, got the envelope out onto the table and slid it towards her. "Oh yeah, come on now...let's drop that top and let Dad see you!"
With one hand bringing her shoulder straps down, she used the other to spread out and count the pile of twenty-dollar bills in it. She could hardly remember the last time she had such a sum of money beautifully fanned out in front of her like this.
"Isn't Mom going to be on your back about it though?" Rachael asked, tucking the five-hundred dollars into her burgundy book bag across the table.
She sneezed before he could reply. With her tank top pooled around her waist, her nipples were hardening to the breeze in the air-conditioned room.