She began slowly bobbing her head up and down, sucking my cock while swirling her tongue around the tip with each suck. Examining me still, but with her mouth now and her tongue. Feeling the texture of the head of my shaft. Keeping her hand planted at the base, she would pump the shaft a little with her hand every few sucks. She knew what she was doing.
"Mmmm.." she moaned again with her mouth full.
Again I looked at her ass. I saw some movement underneath her green panties, over her pussy. She was fingering herself while she blew me. Swirling her finger around her clit with her other hand. I moved my thumb a bit closer and felt the outer rim of her vagina. There was stubble there from when she last shaved her pussy, and I moved my thumb a little further in, under her panties until my thumb became warm and wet. She rocked her hips a little, letting me know that I should keep going. When I found the hole I plunged my thumb as deep in as it would go. Her muscles tightened, locking my thumb in like a vacuum seal.
"Mmmm, yeah," she moaned again.
She spit out my cock and looked at me with her mouth wide open. She was jerking me off again, and this time my cock was all wet with her saliva. Her hand pumping on my cock made wet noises, and I could hear her fingers swirling around her wet clit also. Her hips began to rock with the rhythm of her hand pumping and my own hand, thumb fucking her pussy. With the rest of my hand I felt deep underneath her panties. Slid my finger into the crack of her ass and found her warm asshole. I kept my fingers there, resting against her asshole as I pumped my thumb in and out of her pussy while she fingered her clit and jerked me off. She brought her mouth down around my cock and started sucking me again. My breath became heavier. There was no going back, and suddenly the feeling became almost too much. She was sucking harder and faster, and fingering her clit even faster also. A wet spot appeared over her and my hand on her panties and I shoved my thumb in deeper. The deeper I went the louder she'd moan. My hips started trembling and my butt lifted off the bed.
"Oh god," I gasped, "I'm gonna cum..."
She spit my cock out again and started furiously pumping my cock with her hand, faster and faster. She raised her upper torso to look down at what she was doing. My body was locked in an arch as I began my descent into orgasm. Her hand sliding rapidly up and down my wet shaft, I plunged my thumb into her pussy as deep as it would go. Wrinkles showed on her forehead and her mouth drooped open. Her face was much more serious now, and she was furiously rubbing her clit.
"Oh my go-..." I sputtered out, "Oh god.. ahh-ahhh... Mmmmmmm!!"
I pointed my cock straight up into the air, and with a few more of my sister's hard jerks, a white stream of cum shot out from the tip of my cock, just missing Tara's face and caught her in the hair, right by her left ear.
"Yeahhh haha, there ya go.." she moaned, slowing down a bit on her fist pumps. Admiring her handy work.
I was still cumming, even after the shot into her hair. In fact, I think I was cumming more than I'd ever cum in my life. Another stream shot out, but not as far and landed back on my cock, running down the side of Tara's hand. And then another, coming out a little slower, running down the other side of her hand. My hips trembled a bit more and more cum came out, covering her hand in pearly white goo. She still held on but had stopped pumping. Her other hand now just froze underneath her panties. Her knuckles touching the side of my thumb, still planted deep inside her.
I slowly slid my thumb out, feeling the cool air on my wet thumb. Her ass cheeks resisted a little as I pulled the rest of my hand out. Still looking down, admiring what she'd done, she opened her hand and let my wet hard cock drop and slap against my lower belly. Strings of cum still connected her hand and my cock as she raised her hand up. Looking at it and then at me. She showed me her cum covered hand. She smiled and laughed.
"I think I need a towel," she said.
"Ok," I whispered.
Then as I reach over the side of my bed, careful not to move too much, Tara swung her leg up and, propping herself over me, she brought it over the other side of my body. Straddling me now, still holding her hand up. Some cum dripped from her hand onto my belly. I'd grabbed a used towel from beside my bed on the floor and held it up to her.
"Here." I said.
"Thank ya!" she chirped cheerily.
She took the towel in both hands and started drying them off as she sat cowboy style over me. I could feel the warmth of her pussy on my cock and I realized there was only a thin layer of her green panties separating my still hard cock from her wet pussy. She noticed me looking and she looked down too. She gave a slow humping motion and grinded her pussy over my hard cock. We both moaned, looking down. She humped again. This time I grinded back and made her hips tremble. She closed her eyes and we both slowly grinded each other for a moment. Going slower with each rock of our hips. She lifted her head quickly, flipping her strawberry blonde hair back and opening her blue eyes. She took a real deep breath in and let it out loud.
"Ahhh..." she sighed. Looking down at me, she smiled and raised one eyebrow as if I was meant to say something.
I pointed my finger towards my temple, "You still got some in your hair."
She giggled and touch the cum streak in her hair. Gripping the strand of hair in two fingers, she strained the cum out and rolled it in her fingers. Opening and closing her fingers, examining its consistency. Then, looking at me smiling, showing her teeth, she brought it to her face and stuck out her tongue. My eyes widened. Was she going to lick my cum off her fingers? Centimeters away, she started laughing, and instead rubbed the cum off onto my chest.
"Hey!" I laughed.
"Here," she said bringing the towel back up, "Let me help you."
I looked down and watched my sister wipe the cum off my chest and my belly, then another amazing sensation shot through me again as she grabbed my cock with the towel and whirled it around a little. Drying my cock with the towel, I moaned once more and then collapsed back onto my pillow. Tara slapped my chest, then leaned in toward me, smiling.
"Well?" she said.
"Well...? Haha.." I laughed, "Well what..?"
"Well how'd I do?" she remained leaning in close staring into my eyes, waiting for my response.
"Uhhh.. well," I said, trying to come up with an answer, "Great! I guess.. I mean.. Wow."
"Haha," she said, possibly feeling as awkward as I was, "Didn't know your sister had it in her did ya?"
"Uhh, haha.." I was speechless, "I was definitely not expecting that... Not one bit."
She smirked and continued staring into my eyes.
"Ya know.." she said, thinking, "We don't have to, like.. tell anybody or anything."
"Yeah I know," I said back, "I definitely won't be."
"Just like, uhhh.." she said, still thinking, "Some fun between two friends."
"Right," I said, smiling back, "I know."
She smiled wider, and we both gazed into each other's eyes, reading each other's thoughts for a moment. She still had me straddled and was bent forward overtop of me. I looked down and realized I could see down her shirt a little. She had nice medium breasts. Not too big, but round even when pointing down. She looked down too at her own boobs and then back at me, smiling with her teeth.