"You knew it had to happen."
"But it is wrong."
"Nothing so fun could be bad."
Sadie had grown up around my house. She was a classmate of my younger son. Everyone called her "Sweet Sadie" because of her sunny disposition. Then, during her teen years, she sprouted a killer body - baby fat moulded into curves that even a devoted Dad had a hard time not staring at. Firm ripe tits that made all the guys want her to wash their cars, just to see her T shirt get wet. More than once, I could not help noticing how her nipples seemed tiny for her melons when they stiffened under a bikini top that struggled to restrain bouncing teen flesh.
Guys discovered Sadie early, and all through those years, she and Bart remained close, but not intimate. Maybe it was because he felt like she was a sister of another mother, or perhaps it was because, as he said, "Who would want her after the low life guys she fucks. She has lousy taste."
'Who? I would,' I admitted silently to myself a few times. After all, Sadie was sweet, but not too bright. She had repeated a year in school, and was already eighteen. She often borrowed our shower to freshen up, and I fantasized about joining her, or perhaps being asked to fetch her a clean towel....
Bart's Mom left us during those years, and devoting myself to work and parenting left sex as an infrequent treat.
The summer after Bart and Sadie's junior year, we moved out of town. Not far, but just enough that if Sadie came to visit, driving her home late at night was an unwelcome chore. Thus, our spare room came to be known as "Sadie's Room". Bart slept in the basement. I had a cozy loft. However, there was no bathroom up in my space. In order to pee, I had to go down the stairs, and use the facilities in the room to the left of Sadie's room. Her door faced those stairs.
Which is why it was bound to happen. One night, when I descended for my duty, I would bump into Sadie in that tight little space.
As luck would have it, I had stumbled down the steep stairs fretting over just how I would relieve my urgent bladder when my cock was at full erection. Possibly I was just piss proud, but more likely, I had been dreaming of Sadie, with her pillowy lips that just begged to wrap around my cock, while the long blonde hair framed her angelic face. I knew from Bart that she was no blushing virgin, but her look was like a Jane Austen heroine, fragile and pale, thus, innocent, no matter what reality was.
"Ouch," I heard the grunt as my momentum carried me into the doorway of Sadie's room. My hands instinctively rose, sliding against soft supple teen flesh. I suddenly realized that my erection must have impaled our house guest. Only the thin fabric of the oversized T shirt she wore as pyjamas had prevented skin on skin contact. Though, I imagined, Sadie likely also had panties on.
As my brain caught up, I registered surprise that Sadie had not screamed, nor had she bolted. Since I was frozen in the doorway, she could not run out of the room, but I might have expected her to flee to the bed, or a neutral corner. Instead, we stood a foot apart, my hands gently grasping her biceps, her breath washing over my face.
"My bad," I said, my cock bobbing like an eager puppy in the space between our bodies.
"No problem," Sadie replied. "It was bound to happen. The way the doors are, the space is so tight, you do have to almost step into my room to get out of your loft."
She dropped her voice lower and continued. "I have laid in bed many nights, listening to you try to come down quietly to pee."
"Sorry that it disturbs your sleep."
Sadie titled her chin down a notch. In the weak light through the bathroom window, I thought that I detected a hint of a blush.
"It doesn't bother me...." She stuttered. "It sort of...."
We waited awkwardly for her to finish, the house silent.
"...sort of excites me."
"Really?"
"And I touch myself." Sadie confessed.
"Because of me."
"I think of you sneaking into my room. I know how you look at me when I'm here. I try to find ways to tease you -- flash you the inside curve of my boob, make my tits jiggle a little extra, get wet on purpose. I dream about you becoming so hot for me that you just can't resist. That's what disturbs my sleep, not you sneaking down for a pee."
If my hard on had flagged at all from the shock of the encounter, Sadie's words revived it tenfold. I was now at full mast, to the extent that my tip was gently brushing against the front of her T shirt. I was tall enough compared to Sadie that if she lifted the shirt, I would be fucking her belly button.
"I never knew..." My turn to stammer.
"But, did you hope?"
I could not believe my ears. This nymphet was teasing me. My balls drew even tighter towards my groin, and the tip of my cock rubbed against her shirt as it tried to rise higher.
"I have to pee," I said, trying to change the subject. In some remote corner of my brain, common sense still prevailed, telling me that nothing good could come from a sexual encounter with Sadie.
"Can I watch?"
"What?"
I could not believe Sadie had asked that. She looked so angelic, yet what she suggested seemed perverse.
"I've watched my brother do it," Sadie shrugged, "what's the big deal?"
The shrug made her melons jiggle vigourously under the thin fabric, the right one going up as the left went down, then bobbling slightly as they settled.
She chuckled. I wondered whether she was laughing at my inability to avoid watching her nipples, which I noticed were extremely stiff - tiny little points, but definitely aroused. We stood there for another moment that seemed as long as the night. Sadie's face was close to mine, our bodies connected by my hands caressing her arms, my cock refusing to behave, bumping against her.
"Maybe you're afraid you won't be able to pee with me watching?" Sadie finally asked.
