DISCLAIMER: This story is a work of fiction, for entertainment purposes only. Any resemblance between characters in this story and real persons living or historical is purely coincidental. All characters involved in sexual activities are 18+.
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Late one night, a young girl stumbles across her Daddy making a very big mess... But before we get to that, I suppose introductions are in order.
My Katie is a very sweet and VERY shy girl; standing about 5'4" with auburn hair framing bright hazel eyes, a light scattering of freckles across milky smooth skin, an adorable smile and a lithe dancer's body. Her breasts a respectably firm B-cup and she has a fantastically pert heart-shaped ass.
I meanwhile am 39, nearly a quarter century older. I still have the bearing and physicality of a life of military service, standing 6'3" and weighing 250lbs, but am now retired. I still keep my reddish-brown hair short and my beard is neatly trimmed.
My "other" dimensions are fairly average, I think, about 8" and decently thick. But I do have one striking feature: exceptionally large, heavy testicles. Each about the size of a ripe tangerine and always VERY full. As a natural result, I always produce a copious amount of sperm. But I also tend to make a frankly enormous amount of precum. I found it embarrassing when I was younger, especially in my early teenage years, for what I would assume would be obvious reasons. And I had a few encounters with girls who either mistook it for a premature orgasm, only to be shocked a bit later on, or were turned off by the idea of getting so messy. As I got older, I grew to enjoy it.
Unfortunately, my wife turned out to be one of the girls who found my wetness off-putting. As a result, we rarely engaged in any amorous activities, and when we did they were usually limited so as to contain or redirect my juices: occasional missionary sex, but more often a handjob or half-hearted blowjob in the shower; both leaving me feeling more like a milked bull than a loved spouse.
Perhaps unsurprisingly, this frequently led me to indulge in self-gratification whenever I found myself alone late at night or the house was empty. One fateful night all that changed. About an hour after everyone had turned in for the night, I had the TV playing something innocuous while streaming increasingly raunchy porn on my laptop. As usual, I'd stripped so as to keep my clothes from getting wet, and kept a blanket nearby just in case I needed to cover up suddenly.
Luckily, I was well practiced, so when I heard soft footsteps in the hall I managed to blank the laptop screen, slide it onto the coffee table, and pull the blanket over myself just before Katie walked into the room. Normally I'd have been able to divert her back to bed with a quick goodnight kiss, but she seemed upset. Her lips were quivering and I could see goosebumps on her arms and legs. She was wearing only a loose tank top and panties, her normal summertime sleep attire, and I couldn't suppress a surge of taboo excitement at the sight of her. I checked to make sure I wasn't too obvious under the blanket, even as I felt a steady stream of precum dripping slowly down my shaft, over my balls, toward the couch cushions. Despite that, I let her sit on the edge of the couch and tell me what was the matter.
"Oh Daddy, I'm so scared! I had the most terrible, awful dream! And... and I just had to come and see you... to make sure you're OK."
"Of course I'm OK, babygirl. Don't worry." I leaned forward, kissing her forehead. "Now go back to sleep."
"Do you think I could... just... stay here with you? Just for a little while."
I knew the risk of getting caught, but I couldn't turn her away. So I ended up letting her lean against me, resting her head back against my shoulder, as I stroked her hair.
"I've always loved summertime, Daddy. The weather's so nice... but..."
"But...?"
"Well... you don't wear a shirt in the evenings and... it's always so nice... to cuddle. Your skin is so warm... and smells so nice, Daddy."
Katie nuzzled closer against my shoulder, and I felt another small rush of excitement.
"I love our cuddles, too, sweety. Summertime or not."
I kept gently stroking her hair, just the way she's always loved, and listened to her soft, happy purring. As she relaxed more, I felt her pressing closer. Leaning fully against me, her head sliding to rest against my chest. After a little while it seemed she had relaxed almost fully, nearly falling asleep. I on the other hand, couldn't relax at all. I'd only been half hard earlier, but this illicit closeness - the dangerous excitement of it - had me as hard as I'd ever been. And as wet.
I decided to take a risk. I kept Katie propped up with one arm, gently massaging her shoulder at the same time. Reaching carefully under the blanket with my free hand, I stroked myself slowly. Even I was a little taken aback at how wet I'd gotten. My fingers slid easily along the dripping wet shaft, and I could feel more precum pooling around the base, cascading over my swollen balls, and I knew from experience it was soaking into the cushions. Then...
"Would you rub my head a little more, please? It feels soooooo nice, Daddy," Katie asked sleepily.
Of course I couldn't say no, nor could I shift my near arm without disturbing her too much. So I had no choice but to reach up with my free hand, softly stroking her thick red hair... and secretly rubbing in my warm precum. Katie sighed happily and sank even deeper against me. I contained my excitement with some effort. And decided to risk a bit more.
As Katie's breath grew more even, I stole a few moments to reach back under the blanket. I stroked myself slowly, gaining some small pleasure of course, but more importantly gathering up more wetness. Which I then gently massaged into Katie's hair and scalp. In a few more moments, I expanded my secret maneuvers to include her shoulders, back, and flanks. Keeping at first to areas covered by her tank top, but soon moving slowly and softly to her exposed skin. Knowing that my precum was soaking into her hair and shirt was one thing, but seeing it glisten on her delicate skin was terrifically exciting.
Before long, my excitement was getting the better of my sense, and I found my fingers moving smoothly over Katie's soft skin in ever expanding circles. Tracing wetly over her arms, belly, thighs, and even her neck. Even when I knew she was waking up a little, I couldn't stop myself. Her eyes fluttered, she sighed happily, wiggling ever closer.