A/N: Natasha's obsession with her father's cum culminates beyond her wildest dreams. Please read Chapters 1 and 2 first.
I lay in my bed with Janet's words ringing in my ears.
'If you want, Natasha, you can have a big, fat cock in between your sexy lips and suck the cum out yourself...'
'If you want, you can have a hard, throbbing cock squeeze inside your sexy little teenager hole and stretch you so wide your eyes will roll back in your head and you can't breathe...'
'If you want, I can suck the cum out of your cunt until you shiver and quiver on my face...'
'Do you want to suck your Daddy's cock, Natasha?...'
'Do you want to feel his cum shoot hard against the back of your throat?...'
'Do you want to impale yourself on your Daddy's slick cock?'...'
I trembled at the thought of the questions. I trembled because I knew the answer to all of them was 'yes'.
Janet, my dad's girlfriend, had transformed me from a dorky teenager - called 'Toothpick' by the Ultra-girls at school - and into a lovely young woman. A young woman with a snowballing sexual appetite.
What started with a curiosity about tasting cum soon developed into an obsession with secretly licking my dad's cum off of the shower walls after he jacked off. From there, things went from strength to strength. Janet had given me my first taste of hot, salty-sweet cum, direct from the source - which happened to be my dad's cock. And now I lay exhausted in my bed after a heated, erotic bisexual session with Janet on the living room floor.
It was all happening so fast. I had never thought of my dad in 'that' way before, but now I saw him in a different light. He was the only man in my life and he had a beautiful cock that could give me what I needed. Janet assured me that it would happen if I wanted it to.
And I did. I decided that right then and there. I would take the plunge. I had to. I needed to feel a cock deep inside me and I needed to taste the hot cum, too. My desire for hot cum would not abate. I had to.
I heard my dad come home downstairs and I heard Janet greet him. They sat in the kitchen and I could hear their muffled conversation, but couldn't make out the words.
I got up from my bed and looked at myself in the mirror. Even though I was naked, I was still not used to the sight of myself as a young woman. The body was the same as yesterday, but now a young woman was staring at me. My pert breasts were unchanged, but I now knew how I liked them to be fondled and caressed, and the nipples tugged at a little roughly.
The magical place between my legs, shaved clean and smooth, had revealed some of its secrets to me over the years, but now I had tasted the glories of stimulation, thanks to Janet's fingers and tongue. It was only the tip of the iceberg, though. Because completing the transformation required something neither Janet or myself could provide. A cock. Hard. Throbbing. Eager to please.
Janet and I had thrown out all my baggy t-shirts and jeans and replaced them with a new wardrobe. I went over and took a summer dress off a hanger. The one Janet said I needed to put on. She had a plan and it was going to happen. I swallowed hard. I let the summer dress slide over my head and watched as it fell gracefully over my slim frame and accentuated my girlish curves. I spun round in the mirror and liked what I saw.
This fledgling self-confidence was Janet's doing, too. She had taught me so much already. The taste of my dad's hot cum, the sensation of another woman licking my wet hole, the feeling of licking another woman's wet hole and a whole new way of looking at myself. I was a young 18 year-old woman and I had realised that. I smiled at myself and winked into the mirror. That girl in the reflection was on her way to adulthood. That girl in the mirror knew what she wanted and was determined to get it.
The summer dress was short and showed a lot of thigh. I felt the tight fabric of my g-string sliding between my ass cheeks and hugging my hairless mound snugly. I squeezed my thighs together and felt a jolt of heat generated deep inside my tight cunt. I gasped involuntarily but resisted the temptation to stroke myself down there. I pinched my nipples hard, even though they were already bullet-like and checked to see that there were protruding from under the thin fabric of the elegant dress. Content, I made my way downstairs.
I stopped in the hallway when I could make out their conversation. Janet was prepping my dad.
'We had a great day. Natasha has really come out of her shell. I've transformed her into the young woman she deserves to be.'
'She's always been a young woman...' My dad was a little defensive.
'She has always been a tom boy, running around the house in baggy clothes and helping you with the gardening. You two have been best buddies - and that is super. But she has really blossomed now. You're in for a surprise. And you had better get your brain wrapped around a whole new direction in her sexuality.'
'Her WHAT?!'
I smiled. I could hear that dad was a bit uncomfortable at the mention of my sexuality.
'You heard me,' continued Janet. 'Even girls her age have needs. They need to start exploring their sexuality. Those ultra-girls she talks about at school are way ahead and Natasha is curious. It's only natural. I can help out with her questions of course, but you are her dad. Her one and only. So you're going to have to make some adjustments, too. I'll help you out too, of course...'
Dad didn't reply and Janet didn't have any more to say. It was like a natural cue for me to make my appearance.
I walked into the kitchen and stopped. 'Hi, Dad'. He looked up at me expecting something different, but not expecting the delicious creature who appeared before him. His eyes and open mouth said it all. I twirled in my dress to show it off. All too aware of how high it flew to reveal my ass and of my erect nipples jutting out of my firm, round breasts. Subtle makeup was the jewel on the crown.
My dad was, to say the least, stunned. It took a while for him to find the words. Finally, he broke his silence with, 'You look beautiful. I can't believe it.'
Janet and I replied simultaneously, 'Thanks!'. We both laughed. Janet was right to reply. I was her creation. And I made it work.
Janet hugged my dad from behind, speaking softly into his ear.
'Isn't she lovely? She's a real woman now.'
My dad nodded. I ran over to him and hugged him happily. I had always loved the feel of his strong arms around me but now it was different. It was a man embracing a young woman. I reached around him to return the embrace and found my hands resting on Janet's sexy ass, since she was hugging him from behind. She winked at me without him seeing. I pressed my body tight against his front.