The day was just beginning and I was stepping out of the shower when the bathroom door opened and Clarise rushed in, “God, I have to pee like crazy,” she declared as she pushed her panties to the floor. I watched her sit on the stool then her eyes radiated relief as she tinkled into the toilet. My fifteen-year-old daughter let her eyes scan me from face to my flaccid prick while I dried with a towel. Clarise wiped herself then stood from the toilet, her panties slipped off her feet which left her completely naked, just like me, her father. We were standing in the bathroom nude and didn’t feel any discomfort or modesty. She and I had been living alone for years and this wasn’t the first time she’d seen my glory, nor the first time I’d seen the budding woman.

But something about her was different, something subtle and I couldn’t put a finger on what. She had an aura, an unfocused air about her that made her look softer, more feminine. It was the first time I saw the girl as a female, a young woman, not an appendage and I experienced the sensual thrill of a guy about to make a first pass at a hot woman.

It shocked me to have an erotic feeling about my own child, but she was evolving as a sexual objective. She was to the point of development that I was going to have to be careful of any ball bouncing, single-minded pricks hanging around Clarise. My prick swelled slightly as I evaluated my daughter; at five months over fifteen she was an inch or so taller than the average kid her age, she was flowering B-cup tits; the outline of her body went from shoulders to a slimmer waist and a taut flat stomach. The junction of her legs was decorated with a fragile cushion of dusky orange pussy hair. She wasn’t a woman yet, but she was no longer a child.

I didn’t like the girl’s mother much; she flipped me off and walked out when our daughter was a little over two. Clarise asks about her mother occasionally and I don’t make up stories to make the marriage sound viable or comfortable. That bitch was an awesome fuck, she’d had a lot of practice, but she wasn’t good for much else. When I met her, she was doing a stripper gig with another woman at a bachelor party. The romance was fast, hot, and within a month she was knocked up. The marriage lasted about three days then we existed together for another two years. She’s gone and I don’t miss her. The only thing I had to thank her for was that she passed on her physical beauty to her girl child. The same girl child that just shook my balls awake from a long hiatus.

She turned to flush the commode which gave me a view from behind. Her heart shaped ass invited admiration, Clarise plays school sports, volleyball, and basketball, so her legs were quickly losing their little girl blandness and taking a more athletic shape, the tight round butt cheeks glowed with health and vitality. I broke off my gaze and scuttled out of the bathroom, ashamed of what the hell I was thinking. The last thing I noticed as I fled, Clarise’s nipples looked a little bigger than first glance.

I was standing near my bed when the girl stopped at the bedroom door, she was still wearing an immodest cover of transparency. “What are we doing today?”

“What day is it?”

“What the fuck dad, are you stoned already? It’s Saturday, no work, no school. What can we do?”

As I checked out my daughter from feet to face, pausing at pussy and tits, I said, “Let’s talk about it after breakfast, go get ready for anything.” My cock was beginning to react to the subtle patina of pheromones Clarise was glowing with. The girl turned to go but paused just long enough to look at my dick, it was visibly swelling; she looked at me, “Is that because of me?”

As a biology teacher and thoughtful parent, I had taught Clarise the accurate facts of life about the time she turned ten. She had a full comprehension of what pricks and pussies were designed to do; she knew of the dangers lurking in testicles. I wasn’t uneasy she was watching my penis become half useful, but I wouldn’t answer her question, not honestly, “Don’t think everything in the world hinges on you, go get dressed.”

My daughter grinned, then puckered an air kiss at my groin as she flipped me the finger. A shadow of her mother ghosted with Clarise as I watched her sweet butt sway with inspiration from my room.

What the hell just happened??? As a science teacher I believe in education by both theory and lab work, and Clarise already knew the theories; but that morning she acted as if she were ready to experience some lab time.

Just a few weeks after that I got out of our jacuzzi with an oncoming attack of munchies and wandered into the kitchen to see what I could find in the refrigerator. What I found was my daughter’s ass. Clarise was bent at the waist reaching for the milk, she was in the same condition as I, nude. Water drops were chilling my skin, “Hey, it’s cold in here, don’t you think you should warn me before exposing us to freezing air?”

Clarise tossed a look over her shoulder, stood holding the milk and cast a quick glance at my genitals, “Yeah, you do look cold,” she smirked. She nudged the big door with her left hip to push it closed. As Clarise mixed a glass of chocolate milk to go with her peanut butter and pot cookie, my nuts began brewing their own milk.

As any single parent will tell you, my sex life was close to nil. I’ve had several girlfriends since the divorce but none long-term. For a while I tried visiting ladies of the night, but stopped after spending a ton of money and realized they weren’t keeping the blues away. Clarise was the only female in the world that I felt any connection too, the only one that I could relax with, relate too. She had grown to a point where we were often of a like mind, in mental coordination with the other.

As I watched her walk from me, the size and shape of her adolescent body sent my memory back to when I was seventeen and it was my sister walking around me nude. I saw the same swing in Clarise’s stride that my sister used to tease me with before we fucked. But Clarise had developed more height, padding, curves, bumps, and sensual aura than my sister at the same age.

We were side by side on the sofa watching Godzilla raze Tokyo for the eleventy-ninth time, Clarise’s leg was snugged firmly against mine and I was sensitive to the smooth warm skin as I tried to focus on the TV. Clarise finished her cookie then held the empty glass to me to set on the end table. When I took it, she jammed the cold fingers between my legs, “My fingers are cold!” she declared needlessly. The nippy fingers between my legs tasered a fucking rush of sexual permission from her fingerprints to my nuts.

I grabbed her hand to move it, not from my legs, but to my balls, “Hold these, your hand will warm quick enough.”

She jostled slightly for position then cupped my nuts in her cold hand, my cock began the transition as Clarise held me. She twitched her fingers then hefted them as if she were judging a peach for purchase. I wasn’t shy, disturbed, or timid that she was holding my hormones, we were stoned and it was entertaining. Neither did she seem perturbed or stressed by my prick growing as she fondled her beginnings. The girl watched my dick become an erection then looked at me, “Dad, sometimes I get feelings, real strong, and I can’t stop what I think.”

“What do you think?”

“I want to fuck.”

I wasn’t upset by what she said or how she said it, I was glad she knew what she was saying and was taking me into her confidence; as any parent will tell you, that is a rare treat. “Is some kid hitting on you, you want to let him?”

“No, no one special, but I want to feel what a man has between his legs, between mine.”

I tilted my head back, even though what she said sent a flow of sexual heat through me, I managed to maintain my cool, “You might want to keep your pants on for a couple more years, you need to get used to being a teen before you start practicing womanhood. Clarise, you’re fifteen, you’re only halfway through puberty which means we have three or four years of warfare ahead of us, sex shouldn’t be anything to bother you for a while longer.”

Clarise sat straight and pulled her hand off my nuts, she looked irked, her reply was curt, “I’m almost sixteen, I’m going to bed.” In seconds my daughter was in her room pouting and I was focused on what she said. For the past few weeks my daughter’s female attributes had slowly caused an increasing cauldron of lust for her in the pit of my balls, and the way she’d been acting recently, what she said that evening, put my thoughts on a plateau of fantasy, enjoyment, and fortitude not experienced in a long while.