This is filed under Erotic Horror because as it goes along, it'll feature gruesome deaths and violence. It will, though, heavily feature incest, big tits and big dicks like most of my stuff, along with non-human magical creatures. If none of that is what you're after, don't bother continuing from here.
And, as always, everyone involved is at least 18.
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Kat woke the next morning, alone in her father's bed. Despite his weak protests, Kat had insisted on spending the night with him and it hadn't taken long to persuade him to fuck her one more before they slept. He still professed regret as they lay together, getting their breath back, but Kat could tell he had no intention of stopping.
Now, waking up on her own, she wondered if she'd misjudged him and that he was sat down stairs, wracked with guilt.
"Dad?" she called, slipping out from beneath the covers, completely naked, her huge tits sitting high and round on her chest, her big, firm ass jiggling slightly.
"In here," he called from the en suite bathroom. She walked over, stepped inside and stopped in shock as she saw her father staring at himself in the full length mirror.
Kurt Denholm was in his late 50's but had always kept himself in shape, with only a slight middle aged paunch and his mostly grey hair to give away his real age. Now, though, he'd undergone a change almost as radical as Kat's own. He'd filled out with hard, solid muscle, his belly tightening up into a set of washboard abs. His hair was jet black once more, the few lines on his face having melted and smoothed away, leaving him looking like he was in his mid 20's rather than his late 50's.
Kat's eyes grew wide as she looked at the monster cock that hung long and thick in front of his huge balls. His dick had been large the night before but his new tool was larger soft than his previous one had been when hard.
"Wow," she said with a grin, stepping closer. "I'm liking the upgrade, Dad."
Her father grinned at her. "It's obvious that whatever happened to you with the fungus has happened to me," he said.
Kat paused, a worried look on her face. "Does that mean - - are you going to try - - and kill me?"
"No, baby, no," her father said quickly, stepping over and hugging her reassuringly. "Either I already share whatever immunity to No'nehogtath that you have or you've passed it one. Like you, my body's changed but that's it."
Kat reached down and cupped her father's huge cock, hefting it in her hand, smiling as she felt it thicken and harden at her touch, stiffening as she ran her fingers up and down it. In seconds it stood upright, pulsing in her hand, leaking thick, clear pre-cum that she smeared along the shaft.
"Oh wow, Daddy," she sighed. "You're really, really big now."
Kurt cupped her chin and tilted her head back, leaning down and kissing her deeply, his hands moving to her huge tits, groping and gently squeezing her huge melons.
"God, I want to fuck you," he growled.
"Mmmm, not worried about it being incest any more, Daddy?" Kat asked him, loving the feel of his hands roaming over her tits. "Not worried about it being the influence of the fungus?"
"I don't care what it is, baby," Kurt said, one hand moving round to her big bubble butt and cupping one of her firm cheeks. "I just want to get my cock inside you. I need to get my cock inside you."
Kat smiled up at him and turned, heading back to the bedroom, pulling him along after her by his dick. She let go when she reached the bed and clambered on to it on her hands and knees, turning to face him, licking her lips as he moved closer. Without a word, she wrapped her lips around her father's thick cock head, purring as she felt him inch deeper, the bulbous knob sliding over her tongue before nudging against the back of her throat. She coughed just once before she felt her throat open up and his big prick slip down into her throat.
Kurt took hold of her head, gripping her dyed blue hair gently and began sawing his prick in and out of her, fucking her face, fucking her throat deep and slow, her spit easing the motion. In the back of her mind, Kat wondered why she wasn't gasping for breath, but most of her simply relaxed and let her father slide his dick balls deep down her throat over and over. He pulled free after a minute, his cock covered in her spit, and grinned at her as she breathed easily.
"That's a hell of a talent you have there, baby," he said.
"It's a new one, Daddy," she said. "I've never done that before."
Kurt looked at his spit-slickened cock. "Turn over," he said. "Lay on your back." Kat did as he said, watching him climb on to the bed and straddle her waist, pushing his dick down to rest in the valley of her tits as she pushed them together.
"Yeah, that's it, Daddy - - fuck my big titties."
Kat used both hands to push her soft, firm pillows together as Kurt slid his huge cock between them, her spit and his almost constant stream of pre-cum lubing her cleavage as he tit-fucked his daughter. Even though her huge tits hid most of his cock, the knob would still pop out on the up thrust, allowing Kat to stick her tongue out, bend her head and lash at it, adding to the spit that ran between her mounds.
"Fuck - - feels so good," he groaned, his dick sliding between her huge tits.
"Sure does, Daddy," Kat agreed, managing to slurp the head of his dick between her lips. She moaned as he moved back, pulling his cock from her cleavage, sliding back down the bed to between her wide-spread legs. "You gonna fuck me now, Daddy?" she asked. "Gonna fuck your baby girl?"
Kurt simply laughed as he aimed his cock at her bald, swollen, juicy pussy lips and eased his thick cock inside her. They both sighed as his cock pushed inside, spreading her twat wider than it ever had been before. Inch after inch slide inside her, her slippery cunt taking his length easily as they stared at each other, until he was finally deep up her pussy, his huge balls resting against her butt.
"Oh God - - oh God, Daddy - - never - - never felt so good," Kat gasped.
"Me neither," Kurt moaned. He took hold of her hips and started moving, back and fore, back and fore, fucking his daughter with long, slow strokes, almost coming all the way out, before sliding all the way back in. He watched her huge, round tits roll gently on her chest even though she had her hands over them, her mounds too large for her to completely control.
"Ahhhh yeah - - fuck me, Daddy - - so fucking good," Kat said.