"Jen, whats wrong?" her dad came out of the bathroom half dressed in boxers and his work shirt. He had a pair of pants in his hands, as though he'd been getting dressed when his daughter screamed out.
"Do you see me?" Jennifer shouted and looked at her dad. Looking at the outline of his cock in his boxers, a new feeling altogether took her over.
"Yeah... What about you?" Her dad looked slightly confused, then watched his daughter turn away from his and flip her skirt up.
"Daddy," she heard her voice whine out despite all of the panic she was feeling inside, "I neeeeed to be filled up."
Instead of being confused, or even furious like she had expected, her father only looked slightly annoyed. "Can it wait until you get to school, today? I'm running late for work."
Jen felt her body back itself up until her ass rubbed up against his crotch, causing his ten inch cock to stir slightly. Her ass felt amazing and she let out a moan as it brushed up against him. She kept rubbing.
"Please help me, daddy. Fuck me!" She yelled out.
Her father sighed and pulled out his already semi-hard cock out of his boxers. "I know you know how to make me cum quick, baby, so put that ass to work when we do this." He tried to rub his cock until it hardened fully, but Jennifer was impatient, already attempting to spear her ass on him. Inside, she was still freaking out. Not with her dad! Why was she doing this?! But on the outside, her body did all the work. She couldn't speak her internal protests, and couldn't building need to be filled and touched in some way.
Pre was leaking out of her father's cock by that time. He smeared around her rim to lube her up, and then guided his hard dick into her. Jennifer pushed back against the resistance of her tight asshole, and felt his cock travel the length of her ass. She let out a squeal of delight as he filled her, and used her ass muscles to try and hold him in. He began pumping, sending shockwaves through her ass with every thrust. All Jennifer could do was moan as her dad pounded into her, sending her on the brink of orgasm almost immediately. She moaned in time with his thrusts, and he got close quickly with her ass muscles squeezing his dick hard. He slapped her ass and she came on the spot. She squeezed his dick hard as she came, sending him into his own orgasm. Thick ropes of cum shot from the tip of his dick deep into her ass, sending her into a second orgasm immediately after the first. As soon as he was done cumming, her dad pulled out of her and gave her ass another good smack, sending ripples through the giant orbs. She stayed bent over while he shoved his softening dick back into his boxers.
"We can't do this every morning, I've been late to work all week," he muttered as he went back into the bathroom. Jennifer straightened out and stumbled, still weak-kneed to the mirror. She turned her ass towards the mirror and inspected it. It was huge, easily three times the size of her old ass. How could this have happened to her? She turned back around to look at her smooth crotch. She put a hand to it, and felt nothing. It was like she was touching her arm. She then ran her hand across her ass, and found that just brushing up against it brought her to near orgasm all over. She wanted to figure this, out, but felt compelled to go to school for some reason. She went into her room to get her shoes, and grab her bag. She ran back downstairs, ass bouncing uncontrollably the whole way, and...