I rolled off the sofa, stood up, and then reached out a hand to her. She let me pull her off of the couch and then grabbed the TV remote off the side table. Barbarella was still on. I had been so completely absorbed in what we'd been doing, I had forgotten the movie was even on. I mean it had one hell of an opening scene, but now it looked like an angel was involved somehow. My sister turned it off.

“That was weird,” she said, picking up the remote and turning off the TV.

“Were they… crucifying him?” I asked, still trying to make sense of the scene.

“Yeah, it kind of looked like it,” she replied, heading toward the hallway with her shirt and panties in hand. Her hips swayed as she walked, and over her shoulder, she shot me a look that said, Well, are you coming or what?

I scooped up my shirt and boxers and hurried after her, my hardening cock leading the way.

My sister had already started the shower and was testing the water with her hand when I entered the bathroom. She had thrown her panties and shirt on the sink, so I did the same. She stepped in the shower and took a hissing breath, as she continued to adjust the temperature. I followed her in and slid the shower door closed.

I couldn’t help but think about how effortlessly we had come to trust each other. There was no hesitation in her movements, no second-guessing about letting me join her, even in a space as intimate as this. The warmth of the steam swirled around us, the sound of the water hitting the tiles creating a cocoon of intimacy.

Our relationship had changed dramatically in such a short time, shifting from playful exploration to something deeper—something I wasn’t sure I could fully grasp yet. It was still changing, and that sense of newness was exhilarating. The thought of where we could go from here, how much closer we could become, sent a shiver of anticipation through my body.

She glanced over her shoulder briefly, her lips curving into a small, knowing smile, as though she could sense the weight of my thoughts.

“I think I might have gotten some of your… stuff… in my hair earlier,” she said, her voice tinged with embarrassment. “So, uh, I figured I’d wash it again.”

"Can I do it?" I said, jumping at the opportunity.

"That’d be nice," she said, as she dunked her head under the shower.

She closed her eyes and let her hair soak for a second. Then she did this little thing, where she brought her hands up and slicked back her short neck-length hair while arching her back and shaking her head a bit. The water spilled over her shoulders and down over her perky breasts, which jiggled just a bit with the movement.

My dick throbbed and suddenly I lost all train of thought as I just stood there soaking her in.

"My shampoo's the one with the black lid," she said snapping me out of my trance.

I turned around and grabbed it off of the shower seat in the back.

“So… are there instructions for this?” I asked, holding up the bottle.

She raised an eyebrow, amused. “Instructions?”

“I don’t know, maybe girls’ shampoo works differently or something,” I said, shrugging.

She shook her head, smiling as she squirted some into my palm. “Nope, no secret directions.”

We switched places. I got under the shower with my back toward it, and she stood in front of me. My hard cock made shuffling around in the shower a bit awkward. We were both the same height, around five foot eleven. Since my dick points straight forward rather than up, it was like it was jousting for either her pussy or ass the entire time. She thought it was funny, though, and her laughter made me relax and just go with it.

As I ran my hands through her hair, the intimacy of it struck me. It wasn’t just the closeness of our bodies—it was the trust, the ease between us, that made this moment feel fragile and extraordinary all at once. The world outside the shower didn’t exist—it was just us, enveloped by the warmth of the water.

But just beneath that warmth, a flicker of fear lingered. This new connection felt so precious, so vital, that the idea of losing it sent a pang through me. She had let me in completely, and the thought of making a mistake—or of things going too far—tightened my chest. For a moment, the fear was sharp and unrelenting. Then I pushed it aside, forcing myself to stay in the moment, to focus on her.

I worked the shampoo into her sandy blonde hair, my fingers gentle as my focus returned to what I was doing. However, to keep from impaling her with my cock, I had to bend slightly at the waist, which left me a bit off balance.

Perhaps sensing this, she stepped back toward me. My dick pressed into the crack of her ass, and I froze for a second. Then she wiggled her hips, and I couldn’t tell if she was trying to dislodge me or inviting me closer. Before I could decide, her right hand reached back, answering the question for me.

Instead of brushing me aside, she guided my cock down between her legs, pulling me closer. Then, with a small step back, she pressed her body flush against mine. My mind just about exploded as my cock slid through the gap in her thighs, brushing against the full length of her pussy before the head popped out in front of her.

My dick had been pretty close to her pussy a few times during the night, but nothing like this. It pulsed and throbbed with the contact. Looking down, I could see where we joined. Her flared waist was arced slightly and her perfect ass was pressed into my hips.

I must have stopped working the shampoo into her hair because she started to tilt and lean her head back toward me and the downpour of the shower.

I moved my head to the other side and she rinsed the shampoo out of her hair. The suds slid down her body in a cascade and I watched them flow into the gap between us, up over her beautiful upturned ass, and then spill out the sides where we were joined.

She reached to the side shelf and grabbed the bar of soap. All of her movements, even the slightest of these caused micro shifts in her balance.  I could feel each shift around my cock, which was still nestled between her legs.

“Would you mind doing my back?” she asked, holding out the soap with a small, teasing smile.

She handed me the bar of soap and I lathered up my hands. I began at her shoulders, letting my fingers explore the smooth curve of her skin as I worked my way down. For what it was worth, I tried to give her a bit of a massage along with the lather,  applying slight pressure or working in circles where I thought it might feel good.

I paused when I got down to her hips. I ran one soapy hand over the top of her perfect ass, just above where we were joined. Then I moved both of my hands to the sides of her hips. She pressed back against me a fraction. I gripped her hips firmly and crushed my pelvis into her.

The shaft of my cock slid forward along her slit. I heard her let out a soft moan of pleasure. I allowed my hips to relax, which caused my dick to slide back toward me. The sensation of my cock sliding under her pussy was amazing.

“How about my front, too?” she asked, her voice soft but with a playful edge, leaning back slightly against my chest.

As soon as my hands were properly lathered, I quickly returned the soap to the side shelf, reached around her, and began soaping up her perky breasts.

The feeling of my hands sliding over wet soapy breasts was something entirely new. They felt incredible, causing my dick to swell and throb all the harder.

Only a little while earlier I had been playing with her warm, dry soft breasts on the couch, but this was way better, like way better. They were so smooth and wonderfully slippery with soap. Her little nipples were so hard in contrast to the smoothness of her skin.

Every time I slid a soapy hand or thumb over one, she'd hiss and jerk her hips slightly. Like there was an invisible thread between her nipples and her pussy.

To her apparent delight, I rolled her nipples in between my thumbs and index fingers. Her hips would jerk forward a bit and then she'd press them back against me.

The last time this happened, I grabbed her breasts firmly, pressed them together, and then crushed my hips against her ass, pulling her in tightly against me. I held her like that for a moment and then relaxed.

I slid my hands down her trim stomach and then back up her sides to cup her breasts again. Then I reached across with my left and grabbed her right breast firmly, sliding my right hand down her stomach to her pussy.

I soaped up her pubes, occasionally brushing up against the head of my cock, which was still nestled between her thighs. Curling my middle finger in a bit, I ran it in between what was exposed of her slit. She jerked her hips when my finger slid over the hard little nub of her clit.

I continued to play with her right breast and nipple with one hand, as I explored her pussy with the other. I ran my finger further down her slit where my shaft had been firmly guarding her entrance. I slid my finger in a bit, but couldn't get it in very far, given our position, so I slid it back up and over her clit. As I slid my finger up and down over her clit she began to rock her hips, pistoning my cock through the gap in her thighs.

I could feel the warm slickness of her pussy lubricating my shaft. I could feel the hardness of my cock separating the folds of her pussy. I moved my hands to her sides, gripped firmly, and pulled my hips back.

I slid my cock back a bit more and then thrust forward, grinding my shaft along her slit. She reached down with one hand and held my dick against her pussy. As I pumped my dick through her legs, she made sure the head of my cock rubbed up against her clit with each of my forward thrusts.

Just as I could feel the buzzing energy in my balls building, she stepped forward and my dick sprang free, slapped against my stomach, and bobbed out in front of me. The shock of the sudden abandonment was likely written all over my face because as my sister turned she gave me a reassuring look.

“Your turn,” she said with a playful smirk. “Let’s get you cleaned up.”

Still caught off guard a bit, I recovered quickly and smiled back. She gestured for me to turn around so that my back would be facing her and the shower would be hitting me in the chest.

I heard her open a bottle and then felt her fingers in my hair. She lathered my hair, running her fingers up the sides of my head and down the back working little circles with her fingertips. It felt absolutely incredible and for a moment I felt a little guilty, as I realized that she was doing a much better job than I had. I didn't know getting your hair washed could feel so good, so sensual.

When she was done with my hair, I stepped forward, rinsed it out, and then stepped back toward her. She had already lathered up her hands with soap and began washing my back. Her fingers and palms gently caressed the soap across my back and sides. It was halfway between a massage and a tickle and I was halfway between a moan and a laugh when she got to my ass.

She lathered up my cheeks with the tenderness and attention I had never given them and then slid the edge of her forearm down along my crack, slightly brushing my anus. I had no idea what she was up to, but I was along for the ride one hundred percent. I could feel her arm turn a bit, as she found what she was looking for.

She cupped my balls from behind. My cock immediately flexed upward and my taint pressed hard against her wrist. As she lathered my balls the motion of her hand and wrist bumping against my taint caused my dick to throb and flex with each jostle.

She slid her arm back and spun me around. With a smile, she swapped places with me, so that her back was facing the shower and I was in front of her. She lathered up her hands again and started with my chest. I wasn't a particularly muscular guy, but I had been taking martial arts my entire life, so I was fit for my age.

After my chest was soapy, she grabbed my left arm and threw it up on her shoulder. With it resting there she massaged soap into it which felt incredible. Once again I felt guilty. I couldn't remember washing her arms at all. When she was done with my arms, she rinsed them off and then reached back and turned off the water.

I didn't want our shower together to end, so I was surprised by the abruptness of the water shutting off.  Then she grabbed the bar of soap again and started to lather her hands. Seeing the confusion in my eyes, she looked up at me and smiled.

“Almost done,” she said with a mischievous smile, placing the soap back on the shelf before dropping to her knees in front of me.

She worked the soap into my pubes at first until she had a nice lather there. Then she grabbed my cock with her right hand and my balls in the left.

As she massaged the soap into my balls, she began to stroke my cock at the same time. She slowly stroked up and down my length adding a slight twist to her stroke occasionally.

Then she extended her thumb out so that it ran along the underside of my shaft. When she'd reach the head of my cock with her thumb, she'd stop and rub her thumb in small circles along the sensitive glans of my head, causing my hips to buck and jerk towards her. Then stroke back down, and back up, to tease the head of my cock again.

I could feel the need building deep inside of me to release. The tingling energy in my stomach and the pressure in my balls told me that I wouldn't last much longer.

"I'm going to..." but I was interrupted by the complete withdrawal of her hands.

"Going to?..." she smiled up at me impishly and then inspected my cock closely.

"He’s going to what?" she continued, eyes locked onto my dick.

It throbbed and I could see a slightly opaque perl of precum pushed from its tip.

As it bobbed there in front of her face, telegraphing my heartbeat, I could feel the impending orgasm recede. My balls relaxed and the buzzing energy faded.

“That’s better, ” she said softly, running a finger along his length with a thoughtful smile, “I think he just needs a little training, that’s all.”

She returned her hands to me, but instead of going back to my cock, she ran them through my pubes, picking up some of the lather she had left there.

Then she grabbed my right thigh and slid her hands up to my crotch until the back of her hand brushed against the side of my balls. My dick twitched with the contact. She ran her hands down my leg and massaged the lather into my calf muscle. While doing this, the side of her face brushed my cock.

She looked so beautiful down between my legs. As I watched her carefully and thoughtfully wash me, I realized with a pang that I had also forgotten to wash her legs. At the time, I had thought that I had done a pretty good job of washing her, but she had outclassed me in every way.

After completely soaping up my lower half, including my feet, she stood up and quickly turned the water back on. Then she got back down and ran her hands over my body rinsing off the soap. She made sure to stroke my dick a few times to clear off the suds and then cupped my balls to rinse them as well.

She stood up and let the water cascade over her own body one final time before shutting it off.

“Well, that was fun,” she said, stepping out of the shower with a contented sigh before grabbing her towel.

"Yeah, let's only take showers like that from now on," I said.

“Ha! Dad would kill you, and Mom would definitely disown me,” she said, laughing as she bent at the waist to dry her hair.

She was facing away from me, and as she bent over, I could see her perfect pussy come into view from between her legs. It was heart-stopping. The way her long legs drew my eyes up. The way her thighs curved in a little as they met her ass. The way the gap in her thighs seemed to create a perfect little nook for her pussy.

I had an almost overwhelming impulse to get down on my knees and shove my face into her ass and lick her pussy from behind. But then she stood back up.

“So… are you planning to dry off anytime soon?” she teased, glancing back at me with mock incredulity.

I must have looked like an idiot, just standing with a hard-on and a towel in my hand,...