I grinned, "Maybe I should, then."
Jess smiled and opened her dressing gown slightly, just enough for me to see the dark areas of her crotch and breasts. Her hand slid up my leg, and into my boxers, wrapping back on itself so she could grasp my cock. I sighed, as she began to massage my prick, and I could feel my cock begin to stiffen. She grinned as she felt it too, and reached up and pulled down my shorts, exposing my dick to the night air. Lowering her face down to my crotch, I just caught the words: "I've wanted this for so long," before she engulfed my cock in her mouth. The feeling was fantastic!
She pulled me deep inside her, so the head of my cock pressed into the back of her throat, and then pulled off of me so that only my head remained inside her. She circled this with her tongue, before repeating the whole process again. I could feel the orgasm start to build up inside me, and when she began cupping my balls with her hands, I could felt I stand it no longer! She told me to cum in her mouth and nowhere else. Eager to oblige, I wrapped my legs around her neck and pulled her onto me. It was this force that propelled me over the edge - I began to pump my cum into my sister's waiting mouth. There was something incredibly erotic, but also, slightly perverse about this, but I didn't care. And from the noises my sister was making - she wasn't too bothered either!
When my orgasm subsided, she climbed up next to me, and grinned a cum-coated smile in the dark. "Enjoy that, did you?" I nodded and gave a wide grin, "It's your turn to get some, now," I said.
With that, I dragged my half naked sister up, and tugged off her robe. Now, both naked, I pulled her to the shower. Leaving the torch on the windowsill to give us some light, I pulled her into the shower, and turned on the water. For a few minutes, I let her rejuvenate, and wash the remnants of my orgasm from her face. I moved close to her, and held her close to me. She didn't resist, and when I began to probe her lips, she returned the kiss with equal enthusiasm. My hands left her shoulders, and began to drop to her breasts. My left hand began to stroke the smooth, wet skin of her tits, whilst my right continued down, first to her belly button, to stroke that, and then down between her legs.
She moaned when my hand first touched her pussy lips, but she soon fell silent as I began to caress them. I could feel the heat from her cunt, and my middle finger nearly slipped inside. She pushed against me, encouraging me to explore deeper. Not wanting to disappoint, I pushed my middle finger into her pussy, and was rewarded with a deep sigh from her. We broke from the kiss to draw breath; she looked into my eyes and smiled. She pushed down onto my finger harder, persuading me to delve deeper. We returned to the kiss, as a second, and then a third finger joined the one already in her cunt. I began to explore her depths, pushing in and out in time to our breathing.
The pace quickened, and I felt her pussy begin to tighten around my fingers. My thumb found her clitoris, and began flicking it gently. This technique drove Jess wild, and tipped her over the edge. She began groaning as she came, her sweet cum leaking out of her and over my hand. She continued to cum for a good few more seconds, her pussy clamping down on my fingers as if it didn't want them to let go. Soon, she broke the kiss, and gave a huge sigh; the water rinsing away the trace of orgasm from us. She turned off the shower, and smiled, "My turnβ¦"
With the pleasure I'd just given her, Jess found it difficult to stand up properly. Every time she tried to, her legs turned to jelly, and she fell forward into me. When I caught her for the third time, she didn't try and get up. Instead she pushed me back into the wall, and stood, leaning diagonally, across the shower cubicle. The torchlight highlighted her face, complete with a small, wicked smile. Glancing down, I could see that her breasts were glistening with a mixture of sweat and water from the shower. She placed a finger under my chin, and lifted my face so that our eyes met. She placed her lips onto mine, and soon we were lost in the kiss, as each other's tongue vied for supremacy. I jumped slightly when I felt her hands wrapping around my rigid prick, but I was too wrapped up in the kiss to care what she was going to do.
She began to caress my cock with long, gentle strokes, up and down, up and down. Her hands shifted position slightly; lacing with each other to create a simple tunnel, with engulfed my cock with every stroke. My arms wrapped around her back and head, holding her as tightly as I dared. For a moment, I swore she had slipped my cock inside her, but as I discovered a second later, it was only the illusion, created by her hands. She began to pump faster and faster, our kiss becoming more and more lust-filled. We began to moan softly to each other, and our breathing increased, and became deeper. Soon, I could feel the familiar sensation in my balls, and moaned more urgently.
Jess slowed down the speed of her thrusts to a more sensible pace, and after what seemed like an eternity, I could hold back no more. I gave an intensely deep groan, as my cum spurted out of me, through Jess's hands, and splashed onto her stomach. She released my prick, and levered herself upright. She scooped my cum off her belly, and began to eat it. Noticing me still standing there, recovering, she held out her hand. "Want some?" I licked tentatively at the proffered hand, and was surprised how good my own spunk tasted. I knelt down, and sucked the rest off of her. "Hey," she giggled, "Leave some for meβ¦" I stood back up, and kissed her again. Her eyes widened with surprise as she discovered that I hadn't swallowed my cum, I'd kept it for her! We shared the spunk out between us, and she leant against me, nearly all of her energy spent.