My sister-in-law Anita had recently separated from her live-in boyfriend, and she was staying out in our guest house for a while to get her finances back in order. Unfortunately, the plumbing wasn't working properly in that building, so she had to take her showers in the main house. Early one Saturday, she came in to take a shower. I had awakened early for some unknown reason, so I heard her come in through the sliding glass back door and go into the bathroom. I always loved to see her hot little body, so I thought I'd get up and at least wait out in the living room to talk to her.
I listened in the hallway outside the bathroom for a few minutes, and at last I heard the shower start and the shower curtain slide closed. Just because I had already had a couple of opportunities to fuck her in the recent past, I decided I would check and see if the door to the bathroom was locked. As it turned out, it wasn't, and I walked in and shut and locked the door behind me.
Anita heard the click of the door locking and peeked out from behind the shower curtain. "What are you doing in here?" she hissed at me. "Get the hell out of here!"
"Why?" I asked innocently. "You busy doing something I shouldn't know about?"
"You're impossible!" she hissed again. "What about Karen?"
Karen was my wife, who was asleep at the end of the hall.
"She's still asleep," I answered. "She won't wake up for hours." Karen typically didn't get up until well after noon on the weekends. Actually, I usually didn't either. I'm not sure why I did on this particular day, but I'm glad I did.
As I was answering her, I started to pull my pajama bottoms down, revealing my already hardening dick.
"Oh, jeez," she said, "do you think I'm just always gonna bend over and spread 'em whenever you stick that thing out at me?"
I smiled as I stepped out of my bottoms and pulled off my T-shirt. "Well," I asked, "aren't you?"
"Well," she replied, "it is awfully pretty... Get in here and wash my back, then." She pushed the curtain back so I could step into the shower behind her.
God, her body looked so beautiful with the water cascading down over it. Glistening in the light, it made my dick twitch just looking at her ass wiggling in front of me. As I started to grab her from behind, she shoved a soapy sponge in my hand. "Not so fast, mister," she said. "I really did come in here for a reason, so start scrubbing!"
I took the sponge in my hand and started to wash her back. Her silky skin just cried out to be kissed, and I had to oblige. I kissed the back of her neck as I ran the sponge over her shoulder blades. Squeezed a little water down the middle of her back and then followed the stream down to the top of her butt with the sponge. A quick circle around her cheeks, then up one side of her ribcage. Back over her spine and down the other side of her body.
"Mmmm, that feels nice," she said. I reached the sponge around the front and stroked it across her taut belly a couple of times, before dropping down to her mound of Venus. I squeezed more water from it, make a trickle flow down through her hair and over her pussy. "Mmmm," she said again.
I moved the sponge up to her breasts, pressing my body against her as I did so. I reached my other hand around her and fondled her other breast, pinching the nipple gently. My dick pressed against the top of her ass, and she wiggled her tight little butt against the base of my shaft and my balls. The pre-cum was already tricking out at a pretty steady pace, and I thought I could probably just rub against her back a few times and cum if I wanted to.
"Fuck, I think just washing your back is enough to make me cum," I whispered in her ear.
"Mmmm," she sighed back, reaching behind her to take my dick in one hand as she steadied herself against the wall of the shower with the other. She then bent over slightly at her waist, keeping my shaft in her hand. She positioned the head at the entrance of her pussy, then pressed back a little. I didn't need very much encouragement.
I pushed slowly into her hot tunnel. It was already coated with slick juices, and my pre-cum oozed out to make it even more slippery. I slid easily inside. She moaned softly into the wall, then leaned forward to rest her head on her forearms.
I started slowly pumping my cock in and out, holding her around her waist to keep us both steady. Pretty soon, she was pushing back against me, and we established a rhythm, her pushing back as I pushed forward, slapping my hips into her ass. I found it incredibly erotic to look down at a woman from that position and see the shock waves ripple across her butt as my cock slams home as far inside of her as it will reach.
I leaned forward over her, wrapping one arm around her waist and reaching down to rub her clitty. My other hand reached up to massage one of her erect nipples and cup that breast. I could feel the heat of her ass against my stomach every time I thrust forward, and the intensity of it all built up into an immense climax.
I felt my semen shoot up the shaft of my cock and deep inside her hot body. I thrust one last time as far as I could into her and felt the head of my dick pulsating against the walls of her cervix. She moaned as she felt the heat of my cum shoot inside of her, the muscles of her pussy milking the seed from my shaft.
"Mmmmm." We both seemed to hum in happy harmony as the hot water sprayed over us, and my cock quickly softened and plopped out of Anita's pussy with a sound like a wet kiss. "Oops," she said in a childlike voice.
I backed away from her to the end of the tub and pulled open the shower curtain, preparing to leave.