All characters in this story are 18+ years of age
*****
Jason Song crept down the hallway to stand before his daughter's bedroom door. He eased it open, knowing that she wouldn't wake up - she was an incredibly deep sleeper, to the point where they'd had a specialist study her to make sure that nothing was wrong. Nearly no amount of shaking or noise would wake her, which Jason had confirmed the many times he'd carried her back to bed after she fell asleep watching a movie.
He slowly pulled back the thin sheet covering her, exposing her sleeping form covered only in a thin T-shirt and plain white pair of panties. Arabella Song slept with her back to Jason, her ass presented to him, the bulge of her pussy lips apparent through the cotton of her underwear. Trembling, more excited than he'd been in years, Jason released his straining cock from his boxers and began to stroke it. Almost immediately he began to cum, surprising himself and spraying his daughter's legs and backside. The orgasm seemed to last forever, cum pumping in huge spurts, more than he'd ever cum before.
"Shit," he thought, heart racing. He hadn't meant to cum on her; he didn't want her finding any evidence of his perverted activities. He quickly grabbed a couple of tissues from a box on her nightstand and began gently wiping up his mess. He dabbed at her panties, trying to soak up as much as possible. He hoped that she'd put them into the wash before noticing any suspicious stains he might have left. Throughout this, Arabella slept soundly on, and Jason's flaccid penis slowly hardened again from the contact with her body. He decided to leave her for tonight, though, rather than risk another accident and get found out.
*****
The next morning Jason was up early, nervous that he would be discovered, and went to the kitchen. Arabella was already there, always an early riser, and greeted him normally with a "Hey daddy" before looking back down at her book.
Relieved, he started to make coffee, and asked if she wanted any.
"No thanks, daddy. I'm about to head out with Bethany. I'll probably be back kinda late."
"Doing anything fun?" Jason asked.
"Nothing in particular. Just hanging out at her place, maybe do some shopping."
"Okay, I'll see you later then."
After she was gone, Jason went right to her room to make sure he hadn't left anything incriminating behind. Going through her hamper, he found the panties he'd soiled, and noticed a large, obvious stain on the back.
He threw them in a load of his own laundry, examining them when they came out to ensure no stain was left, then replaced them in Arabella's hamper. When she got home, they ate dinner, and he asked her if she wanted to watch a movie. She agreed, first going to her room to change into pajamas, then sat down next to Jason on the couch. Halfway through the movie, she was asleep.
The movie ended, Arabella curled up on one side of the couch. Jason shook her, then again, harder, with no response. He then lifted her up and brought her to her room, where he lay her on her back. He slowly lifted her shirt up to her breasts, exposing her taught stomach, then pulled down her pajama pants inch by inch. Tonight she wore a pair of flowery red panties, which Jason softly ran a hand over. Arabella shifted a bit, then stilled, her breathing still deep.
Jason went to his room and removed his clothes, collecting a bowl of warm water and some paper towels on his way back to Arabella's room. As he masturbated over her sleeping form, he softly probed her panty clad pussy, pressing into the soft flesh as he stroked his rock hard cock. As he approached orgasm, he slipped a hand under her shirt and massaged one of her breasts, playing with a nipple as he spilled his cum onto her stomach.
*****
Arabella's heart thudded as she felt her father's thick cum landing on her body. She'd woken up confused, seconds before, when her dad had touched her extremely sensitive nipple. She had no idea how to react, so she lay quietly as Jason began to wipe his cum from her body with a warm paper towel.
After he'd put her shirt and pants back and left her room, she lay awake thinking. Suddenly the strange stain on the panties she'd worn yesterday made sense. She wondered how long her dad had been masturbating over her as she slept, deciding it couldn't have been long since she'd only just found out about it, or that he'd just now begun physical contact. Somehow, though, the idea of her dad jerking off to her in secret turned her on, and she found that she was incredibly wet. She decided that she would wait and see how this progressed, and not mention anything to her dad.
*****
Over the next couple of weeks, Jason got more and more bold with his nighttime molestations, to the point where he was completely stripping his daughter every night, fondling her naked form as he masturbated, believing her to be asleep. One night, after he'd spread her legs and knelt between them, ejaculating all the way from her stomach to her tits, Arabella rolled onto her front as Jason went to get the towel he now used to clean her up, spreading her dad's cum all over her sheets.
She heard him mutter "oh, fuck," as he turned around and realized what had happened. He quickly turned her over, towelling off the stain on her bed. As he reached across her, his cock brushed her side, surprisingly still stiff. After he'd finished wiping her sheets, he stood over her, doing nothing about the cum smeared over her front. She felt a hand begin to fondle her sticky tits and realized that he was masturbating for the second time tonight. He removed his hand from her chest and replaced it with his penis, running it over her boobs while masturbating, then came over them yet again. After a quick whipe down of her front, he replaced her shirt and underwear and left the room.
Arabella quickly took her underwear back off as soon as he closed her door and walked down the hall, fingers finding her pussy and rubbing it in circles, quickly bringing herself to orgasm as she did every night after her father had his way with her.
*****