“Ok!” said Kassie, reclaiming composure, “I’m gonna go next… I got a good one.”
She pondered for a minute, sipping her drink.
“Stand up..” she said, “Walk to the sliding door… QUIETLY step outside… and take your blanket off.”
We had a sliding glass door in the basement that led to the back yard. It was dark back there and there was woods all around, so no neighbors could see, even in the daytime pretty much. So I took a sip of my drink and slowly stood up, slouching a little so the blanket hid my hard cock. This wasn’t fooling Kassie.
“Still hard I see.” She chuckled.
“Haha, well..” I said, “Once it’s up, it’s up for a little while.”
I made my way over to the door, drink still in hand. Blanket covering my naked body like a poncho or a toga. I paused a moment and looked back at Kassie.
“Wait a minute,” I said, “What are you gonna do for me?”
“Ummm, well…” said Kassie, looking at me, “When you go out there, throw your blanket back in here. Then run to a dark area, and I’ll come out too and do the same.
“Ok,” I said, making my way to the door, “But you better!”
I reached out and grabbed the door handle. Being as quiet as I could, I slowly slid the door to the right, and fresh air poured in a little. I was barefoot and I stretched my leg out and felt the cool grass outside. I sleaked out quietly and stepped to my right. I closed my eyes, felt the nice fresh outside air on my face and stepped to the side, out of the light. In one quick move, I slid the blanket off my shoulders and threw it back inside. I quickly tiptoed naked, drink in hand, half a boner, through the mild midnight air a few paces and turned around. I stood and felt a small cool breeze on my half hard cock. From where I was standing, I could see Kassie’s figure enter the doorway, draped in her blanket drink in one hand, blanket in the other. She stepped out. She waited a moment, looked around and stepped forward so that her covered figure became a silhouette against the light from the basement. She shifted and her blanket dropped. Her perfect naked teen figure silhouetted in the light made my breath tremble. I held my drink in one hand and my cock in the other. I squeezed a bit to keep it semi hard, and she was just looking real nice, I couldn’t resist. Here I was, slightly drunk, super naked in my backyard with my sister.
“Pssst!” I quietly got her attention, “Over here!” I whispered.
She heard and skipped forward towards me. I couldn’t see much, but we were both very pale, and under the moonlight our milky white skin was a little visible. I could make out her skinny girlish figure and could even see the shape of her nice medium round breasts, and what looked like slightly tiny nipples. A small patch of dark hair between her legs. She came up about three feet away covered herself a bit with her arms. I instinctually did the same, covering my cock with my hand as best I could. We stood a moment facing each other. My heart was pounding.
“Hey!” she whispered, sipping her drink in the moonlight.
“Hey” I whispered back, “What now?”
“Take a sip,” she said, “Lets go put our drinks down”
We both sipped, and she turned away and started walking towards our back deck. I watched her walk away and could make out the shape of her butt. It was real nice, for what I could see. I walked over to her sipping my drink, hands still covering my cock so it wouldn’t bounce. The pressure of my palm was making my cock hard again, and I felt a little pre-cum which felt quite nice. Kassie put her drink on the ledge and leaned against the side of the deck, covering herself with her hands. I did the same.
“Good thing it’s really nice out!” Kassie whispered.
“Yeah it feels pretty good!” I whispered back.
“Here,” she said, “Lift your arms up and come over here.”
She uncovered herself and raised her arms out beside her. Walking to the middle of the yard, she did a twirl, letting the nice air into her pores. I followed and did the same. The air did feel especially nice. It was liberating to be naked outside at night. The night was beautiful and so was this moment. We both knew it, and it became a little less awkward . We twirled a few more times just a few feet from each other, and looked up towards the clear night sky and the stars above. I stopped as Kassie faced me. She was trying to focus on my body, and I did the same.
“You look good!” she whispered.
“Thanks!” I whispered quickly back, “So do you!”
“Whatcha wanna do now?” she said, “We still playing?’
“Uh… yeah!” I said, “My turn now.”
I stood and thought for a minute of something she could do that wouldn’t be super weird, but also wouldn’t be a cop-out.
“Ok I got it,” I whispered, “Lay on your back in the grass, and I’ll lay beside you.”
“That’s it?” she smiled, “That’s an easy one!”
She shifted her leg and lowered herself down. Stretching her legs, she laid on her back and stretched her arms and legs out far, looking up at me. I took in her figured as I lowered my own self, about two feet a way I laid on my back, looked up at the stars. Then looked over at Kassie. She looked at me back.
“The grass is nice and cool,” she said, “I like it!
“Yeah I know,” I agreed, “This is fun! … Are you drunk?”
“A little bit,” she said, “Are you?
“A little bit.” I whispered.
We stared back up at the stars for a moment taking in the scene. Then back at each other, taking in each other. My eyes had adjust now, so I could see her face pretty clearly and the curves of her naked pale body. Her breathing was a bit heavy, like she was suppressing excitement. She looked into my eyes smiling, then down at my cock. I wasn’t quite as hard as before, but it still throbbed a bit, up and down. She lifted her head a little.
“It’s moving again!” she whispered and giggled.
“Haha!” I chuckled, looking up at the bobbing arch my cock was making, “Yeah it does that. Mind of his own. He’s enjoying the outdoors for a change.”
“Haha… well,” Kassie whispered and paused, “You can make it hard again if you want to. I can barely see. I don’t wanna patronize the poor thing.”
“Haha” I laughed a bit nervously and a bit loud, “It’s cool. It’ll happen on it’s own!”
We both looked back up.
“I got one!” she said.
“What?” I looked over at her.
“If you…” she leaned over closer to me, “Make yourself hard again… I’ll let you touch my boob while you do it…”
“Uhhhh..” I let out sort of a curious sigh. I whispered, “Ok… just one boob?
“Hahaha!” she laughed, raising her one her elbow a bit, turning on her side to face me. Bringing her chest a bit closer. She said, “Yup! Just one… and ya gotta stop when you’re hard!”
“Ok!” I said, looking back up, “Well… here goes!”
I slowly raised my left arm and brought my hand over my cock. I grasped it gently and a small bead of pre-cum emerged from the tip. I swirled my thumb over the tip to lubricate the head. I squeezed a bit and my cock swelled. Then with my right arm, still lying on my back, Kassie leaning towards me to my right, I brought my right hand up, slowly brushing/caressing Kassie’s soft left boob before I closed my hand a bit over it, cupping the breast and feeling it’s soft tenderness. I held on with my right hand, and squeezed my cock again with my left, making it swell just a little more by the second. I looked over at the boob I was holding, made another grab and tried to examine it as much as I could in what little light. I heard Kassie’s breath tremble as she looked down at my cock.
“Oh god…” a very soft whisper escaped her lips as she stared open mouthed at my slowly rising cock in my hand.
“… yeah.” I heard my own breath just barely say.