The weeks following my first sexual experience with my stepmum were tumultuous. She would tease me by walking through the house naked or just in her underwear, make suggestive comments in front of my friends, and often kiss me goodbye when I left for uni, rubbing my dick through my clothes as she did so, leaving me with a rock hard dripping cock as I staggered off to class.
She used me twice through this period, getting me to eat her out, finger fuck her, and either eat her ass or drink her piss, before she got me to masterbate while she watched.
Naturally my brain was a horny, sex obsessed mess. Every night I would have to watch porn and jerk myself off, just to get to sleep. On three occasions, she even managed to catch me in the process, and sat there and watched, saying nothing, as I came in front of my laptop like the sad sap I am.
One particular fine morning, Sonia informed me that we were heading off to the forest for a mountain bike ride. This was an activity we all enjoyed as a family, but never just the two of us. The thought of riding through the remote bush with just my stepmum filled me with longing, fear and confusion. I had no idea if this was just a bike ride, or something much more.
The trip to the forest was only forty minutes, but it was one of the most difficult forty minutes in my life. As soon as we had loaded up and pulled out of the driveway, she started rubbing my thigh. At each traffic light she would glance at me and move her hand higher under my baggy shorts, until she was gently rubbing my throbbing dick through my padded lycra shorts.
I could feel the chamois getting wet with pre-cum, and twice she had me on the brink of cumming in my shorts, before she backed off. She never once talked about what was happening, just rambled on about which routes to take and yapped on about work and how my uni was going.
To make matters worse, as soon we pulled up at the nearest forest access point, she made me jump out of the car to get the bikes down from the roof rack, my erection still in full bloom, visible even through the chamois and my baggy shorts.
Despite my humiliation, it only took a minute to get my gear on: riding shoes, helmet and gloves. To my surprise, another woman rode up as we were finishing and Sonia welcomed her with a hug and a kiss on the cheek, as was her habit with good friends.
My poor brain was yet again thrown into turmoil. Clearly the day would not end up with me servicing my stepmum's needs somewhere deep in the forest as I had been expecting and the thought of carrying around my testosterone fueled dick all day filled me with horror- I needed to cum so badly it hurt.
The new arrival was probably also in her forties, but unlike Sonia, had artificial help to look younger. Her blond hair clearly came from a bottle, her breasts from a surgeon, and she wore makeup on what I suspected was her botoxed face - seriously, who wears makeup on an mtb ride.
Sonia introduced me to Lou, who gave me a big smile and said, "He is a strapping lad. Built for more than just bike riding I suspect."
Looking between the two like a trapped monkey, I replied with the only thing that came to mind, "Please to meet you."
We set off at a good pace, and fortunately the ache in my groin subsided as we got on with the ride and I focused on the technical climbs and fast downhills.
I wasn't really thinking about it when I dropped my bike at the end of a long climb and headed into the bush for a pee. As the women pulled up behind me, I heard, "Where do you think you're going?"
I turned around and stammered, "I just need a pee," as a new feeling of dread washed over me.
Sonia's response confirmed the new realisation dawning in my foggy brain. "Let's not let that go to waste."
Between them, they pulled the three bikes into a small clearing deep in the bush, and then stood there watching me.
I was really ready for piss, so I undid the fly on my shorts and pulled the lycra down enough to free my now semi stiff cock.
"Not like that, honey." Sonia said. She then approached me from behind and pulled both my shorts and lycra down to my ankles
I stood there feeling like a two year old who needed help to use the toilet. However, nature eventually compelled me to complete the task, so I took my dick in my hand and began to pee, enjoying the relief despite the situation. To my surprise, Lou addressed Sonia mid-flow and asked,"Can I hold it?"
Sonia's response was immediate, "Sure, do what you want."
I groaned internally as she got close behind me, pressed herself against my naked arse, and took my dick in her hand as I peed. She pointed it in the air, and moved out round like a fire hose, saying,"Fuck, cool," as she did so.
After I was finished, Sonia approached me, and put her hand on my head, pushing me down.
Knowing what was coming, I wasn't surprised when she said, "My turn."
She pulled down her own shorts and pulled my mouth to her sweaty, pungent pussy, then let her piss flow. I tried to drink it, but unlike our previous encounters, she just let her piss flow, choking me and ultimately spilling out of my mouth and down my front.
Despite feeling like I was drowning, I was very conscious of my naked arse, the unflattering feeling of my shorts still around my ankles, and my growing erection as I accepted my stepmum's piss.
I didn't have long to dwell on this as Sonia was soon finished, only to be replaced by a grinning Lou. She at least had the decency to say, "I don't know if I can."