It's rare my sister asks for a favor, so naturally I felt obliged. That being said, it wasn't the best timing. I just came off my period and i'd be edging all morning prior to her text. I can't really put into words just how horny I was coming into this day.

The favour? Pick my niece up from their house and drive her to an away game 1 and a half hours south of where we live, wait for her to win (they didn't) and drive back.

It all felt like such a chore up until I met their coach. Beautiful complexion, brown hair tied up in a pony tail, Athletic and roughly in her late 20s. Ever the opportunist I introduced myself as my nieces aunt and that I've heard amazing things about her coach. I hadn't, if anything I heard she was always quite harsh and was happy to give out punishment. Terrible for my niece, but great for a newly single 33 year old me.

"Do you need a hand?" I asked desperately, striving for her attention. She looked at me twice before I got an answer.

"Sure, if you want to grab that box of water bottles over there and bring them to the pitch, that would be great"

I obliged and she commented that I made lifting things look easy. I told her I was a fire fighter so lifting things was my speciality. She was interested by my job and physicality so we had a nice chat heading to the pitch.

Conversation was dying down and I could see the kids running out lazily so I knew I didn't have long before her attention was elsewhere.

"I mean, I hit the gym more now that I broke up with my girlfriend." I lied. I broke up with a guy, and I certainly didn't go to the gym much recently but I needed to know which team I played for.

"Oh, really? That's interesting." She replied with a coy smile.

"Well I'm glad you find that interesting. I'd love to see just how interested you are whenever you're not busy" I asked, oddly confident.

Her face turned from excitement to mild disappointment when she saw two of her kids she was coaching run up to her to ask if they could go to the bathroom.

"I'll catch you later maybe?" I asked with a smile as I glided away to the stands.

"Yeah. Later" she replied before her coach mode was activated and she walked out on the pitch to gather her squad, to Inspire them before the match started.

I sat close to the pitch on the bottom step of the stands. Infatuated with this soccer coach, I watched her work her magic. On 2 separate occasions I saw her peek over at me to see if I was watching. At that moment I knew she felt something.

The first half of the match was uninspired. The kids were lazy and no match for the opposition. 5 minutes into the second half, I went to stand pitch side to give my nephew a few woops of encouragement when he got the ball.

I turned my shoulder to see her walk closer to me. At first I thought she was pacing out of stress, but she didn't turn back.

"How would you turn this around?" She asked under her breath, not for the other parents to hear her. "I mean I wouldn't know where to start. I suppose a military style boot camp but I think that's frowned upon when dealing with under 12s"

My joke seemed to have triggered a response as she bent over from laughter.

"You're funny. I like that." We chatted a little more in-between commands to her players which cut through our playful flirting.

"Don't have a ring? What's the story there?" I asked, hoping for an answer that will satisfy my sexual desires.

"Well that kid is mine" she pointed at number 8 who was standing still just near the half way line. Even I who was inexperienced at soccer strategy knew that you at least needed to run around if the girls were going to get back in the game. "But it's just me and her" she looked at me with sunglasses on but I could sense some vulnerability.

"Well, that's good news" I smiled, and went silent for a little. Both of us knowing full well that there was something growing between us.

"So this is probably a bad time to take you to my car and finger fuck you until you scream my name?" I teased, not expecting a response.

There was a break in conversation whilst she thought to herself. "No but no one would notice if I go to the bathroom." She said softly, as my heart raced.

"I'll meet you there." I said, looking straight ahead to the pitch, chewing my gum, cool as a cucumber.

I walked maybe a minute behind her and by the time I got to the bathroom, the single cubicle was locked. I was about to turn away when the door opened. She beckoned me in with a wave and I rushed in, feeling like a 13 year old school girl myself.

She pushed me against the wall and we kissed intensely. Her hands rushed to the button of my jeans, and I followed suit. Before I know it her fingers were inside my underwear and deep inside my wet pussy.

"You're so fucking hot" I said beneath kisses and moans as I pulled her closer to me and span her against the wall.

I pulled down her tight jeans down to her ankles to reveal a pink lacy thong which I kissed with my lips before yanking down her pants. Her beautiful ass cheeks pressed against the cold tiles took her breath away.

We stared into each other's eyes as we both fingered each other's gushing vaginas, trying to hold back our moans. She bit my lip and then kissed me one final time before withdrawing her fingers from inside of me. She pulled up her jeans and buttoned it, as she left me there against the bathroom wall, craving her touch deeply.

"I'll get your number after the game okay?"

I didn't smile, my mouth was open, and my jaw felt like it was on the floor. I can't remember a time in my life I felt this horny. I just nodded in acceptance. She had me. I was hers. We've been texting ever since.