Coaching the Devils - Cover

Coaching the Devils

Copyright© 2025 by TheDarkKnight

Chapter 1: A Risky Decision

Erotica Sex Story: Chapter 1: A Risky Decision - I should never have agreed to coach a soccer team of 15-year-old girls. I knew it was like a drunk being hired as a bartender or a bank robber working as a security guard. But when my niece asked me to help with her team, I couldn't say no. She wasn't just my niece; we were also... well, no spoilers. Note: Story tags will be updated as more chapters are posted.

Caution: This Erotica Sex Story contains strong sexual content, including Ma/ft   Teenagers   Consensual   Heterosexual   Fiction   Sports   Incest   Niece   First   Massage   Masturbation   Petting  

Volunteering to help coach a soccer team of fourteen and fifteen-year-old girls was risky for me. I would not have ended up in such an uncomfortable situation if it hadn’t been for my niece, Amy. I’ve never been able to say no to her. Whatever she wanted I got for her, whether it was her birthday, Christmas, or just because I liked being nice to her. So when she asked me to help coach her team, even though I knew it was a dangerous situation for me to be in, I couldn’t say no.

Why was it dangerous? A girlfriend I had in college, who was a Psych major, told me that the name for my weakness was ephebophilia, and when I looked it up I knew she was right - “men who prefer adolescents around 15–19 years of age”. Until Amy called, I had been able to resist doing anything foolish, confining my perversion to masturbating over pictures and videos of teen girls, with one major exception. I wasn’t just Amy’s uncle, I was her lover.

It began when I took her to the beach for a week to celebrate her fourteenth birthday. I rented a two-bedroom condo and we settled in for what I hoped would be a few days of fun and sun. Then, the second night we were there I woke up with a raging erection. I figured it was my bladder telling me it was time to empty the tank, but when I tried to get up I found my niece in bed with me, nude, holding my cock in her hand.

Most men in that situation, maybe as much as 98%, would have been smart enough, or moral enough, to slap her hand away or even end the vacation early, but I’m in the other 2%. I had felt a growing affection bordering on lust for Amy for the last couple of years as I watched her grow and mature in that magical gap between being a child and a woman. I would never have been bold enough to bring up the idea of sex with her myself, but when she offered it to me, I couldn’t resist.

“I want you to be my first, to make me a woman,” she whispered as we lay there. It was a hackneyed line she must have heard in a movie, but I knew she was serious.

That night, she was a vision of ripening womanhood. Her light brown hair, usually bound in a ponytail, flowed freely over her shoulders, a few strands covering half of her face, the ends almost down to her tiny but perfectly shaped breasts. In the semi darkness of the bedroom I could see her slim but muscular legs, that I had longed to touch, draped over my body. I allowed myself a moment to run my hand up and down one sleek thigh before my conscience intruded. “I can’t,” I said. “I’m your uncle and should be taking care of you.” That was my weak attempt at being the adult in the bed.

“Don’t worry,” she whispered, “nobody will know. I’ve wanted this for a while, and I think you have too. I saw how you looked at me today in my bikini. Thanks for buying it for me.”

Of course I had bought it for her. When I saw it on display in the mall, I immediately began imagining how it would look wrapped around Amy’s blossoming body, and what forbidden parts the small yellow strips would be hiding. My reverie even caused my cock to begin to swell slightly, right there in the store. And she was right. I had let my eyes ogle over her ripening body for more than a few seconds when she put it on and modeled it for me.

“Do you know the age of consent in Japan is thirteen?” she asked. I had no idea where that Idea had come from, but the fact that she knew it showed that she had been planning this for a while. “Doesn’t matter,” I told her, “we’re not in Japan, and I’m still your uncle. Now, let go of my penis.”

Not only did she not let go, she made things worse by starting to stroke my cock with a talent I didn’t know she possessed. “If you won’t do it, I’ll just find some boy at school who will. I’m pretty popular with boys, and I bet none of them would hesitate. I would much rather it be now, here in this comfortable bed than losing my cherry in the backseat of a minivan.”

The whole time she was making that speech, her voice barely more than a whisper in my ear, she had continued rubbing her palm up and down my shaft. I hoped I could find some way of derailing her plan without harming our relationship. I remembered how high school was, and how likely the lucky boy would brag about it to his friends, and yada, yada. I almost convinced myself that I would be doing something good for her. If she was so determined that it was time for her to be deflowered, maybe it was just meant to be that I was to be the one to do it. I have no excuse for my faulty decision making, other than it is hard to think straight when a girl I loved in more ways than one was lying naked next to me, with my cock in her hand.

Amy rolled over and kissed me. We had kissed a lot while she was growing up, but it had always been a normal uncle-niece quick lip smack. This time I felt her tongue slipping between my lips as she held the back of my neck, pressing her mouth against me. I didn’t try to stop her, but while she was kissing me, my mind was churning, until I came up with what I hoped would be a way for me to get out of the situation quickly.

“Amy,” I said, when we came up for air, “there’s just one problem. I wasn’t expecting anything like this to happen, so I didn’t bring any condoms, and neither one of us wants you to end up pregnant.”

She giggled and said, “Don’t worry. I haven’t started having my periods yet. Mom said she didn’t start until she was fifteen, so I guess I’m like her. Now, let’s go ahead and do this so we can get some sleep. I want to do some body surfing in the morning. “ She rolled over onto her back and pulled me on top of her.

I knew Amy needed more preparation than some awkward kisses, especially since it would be her first time. I’ve claimed a couple of cherries in my life, and I had learned that a dry vagina only made the first time worse. I knew she was ready mentally, but I wanted to make sure her body was just as prepared. I thought about going down on her, but decided just to use my hand. I became the aggressor in our embrace, pushing my tongue into her mouth while at the same time my fingers moved through her small pubic patch and into her tiny slit.

It only took me a few moments of digital stimulation to feel her growing wet. I pushed her legs further apart, and took my position between them. I used one hand to aim my spear and gently but firmly pushed forward. I gained entrance easier than I had expected. Amy was silent, not even a quiet ‘ouch’. I looked at her below me. She was grimacing, like she did when she wrestled with a math problem, which I had been helping her with lately. I didn’t move for a moment, letting her grow used to the feeling of a man inside her. When she finally opened her eyes, she looked up at me and smiled. “Is that it?” she asked. “It wasn’t any big deal.”

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