This is my first story so don’t be too harsh any feedback is helpful.

It all started a few months ago when I actually started looking at my sister.   That’s when I realized that she was hot!   She wasn’t a D-Cup bombshell with amazing curves but for a sixteen year old she was everything a guy could hope for…and that was exactly the problem.   She played a sport every season so her body was in great shape.   Her abs and legs were toned but perfectly so they weren’t too muscular but just perfectly defined.   She was petite maybe 5’ 4” and small boobs but they were perfectly proportioned.   Once I started noticing all of these things I couldn’t help but get hard.   I hated myself but I jacked off to her frequently.   Then it happened.   She came out of the bathroom one day with just a towel on, it slipped and I saw one of her tits.   Her areola was probably an inch wide and a lot darker than her natural tan.   She quickly pulled up the towel and looked around to see if anyone was looking.   That’s when our eyes met; she turned her head and walked rapidly into her room.   For the next few weeks we pretended like it never, that is in public.   Privately, I had been pleasuring myself to the image of her in the hallway.   One night when I was wanking myself again she walked in on me.   I threw the blankets over me hoping she didn’t see anything but by the look in her eye I knew she had.

“Jeez Kiera ever heard of knocking,” I shouted at her, as I tried to smooth down the crease my rock-solid cock was making.

“Sorry,” she said with a sly grin.   She plopped down on my bed smoothing out the wrinkle on her miniskirt that only reached up mid-thigh on her.

“I’ve never seen a cock before,” she burst out all of a sudden.

“Ok, why do I care?”

“Oh, come on Eric.   I know what you were doing.”

With a wince I said, “What’s it gonna take to keep you quiet.”

“Oh, I have something in mind,” she said.   She stroked her hand up my thigh and right across my cock.   I almost burst when she did that.

“Well aren’t you a big boy,” she said with a grin, as she walked out of the room.   I sat in my room stunned at what had just happened.   Things went on as normal for awhile until one day my sister said, “It’s time to pay your debt.   This Saturday when the parents are away wait in your room at 1:00 p.m. for payback.”

That Saturday I did what my sister told me.   I sat in my room with jeans and a t-shirt on and I waited.   A few minutes later a girl from my sister’s basketball team named Sarah came in.   She was wearing tight little short shorts and a tank top that barely held in her nice C-cups.   Then Kiera walked in and I almost blew a load in my pants.   She was wearing a red lacy bra with nothing else on but a tiny thong that gave me a perfect view of her cunt.   I tried to keep my cock soft because she was my sister and I knew I shouldn’t be getting hard.   It was too late, though, as my cock burst into a steel rod leaving a noticeable bulge down the side of my jeans.   My sister swung her hips as she walked right over to me and my dick got harder than I thought possible.

“So, what do you want me to do?” I asked, trying to sound calm as my heart pounded its way out of my chest.

“Jenny’s fantasy is to see a brother and sister lose their virginity to each other while she watches.” my sister said as she moved in closer.   “And I said we could make that a reality.”

Without warning Kiera hopped on my lap and started to kiss me.   Once that happened I started to think with the head I have below my waist.   I pulled her in closer to me and wormed my tongue into her mouth and soon enough we were having a full on make out session.   Then Kiera started to wiggle and squirm on top of me rubbing her wet and hot pussy against my caged cock. I pushed back grinding into her and she threw her head back and moaned as the rough material of my jeans slid across her clit.   I undid her bra and started playing with her boobs.   When my thumb brushed her nipple it popped out and I started pinching and pulling it.   That drew even more groans of pleasure from her and she arched her back into me smashing her boobs into my hands.   I stopped and with a wry grin I said, “Someone’s a naughty little girl.   I think a little punishment would do you some good.”

Before Kiera could respond I lightly flick the tip of my tongue across her left nipple.   She shuddered at the feeling and her pussy rubbed across the tip of my dick sending fire shooting through my veins.   I gasped but didn’t let her take control.   As I licked one boob sucking and pulling at it, my left hand worked her other boob pinching and pulling at it.   Everything I did sent a shudder through my sister’s body which almost made me cream my pants.

“Alright,” I said.   “Now it’s time for your real punishment.   Get on your knees and suck my cock.”

Kiera hopped off of me instantly and got down on her knees.   She undid my zipper and pulled off my pants and boxers.   My cock came flying out and started wobbling around like a really deformed bobble head.   My sister’s eyes never left my cock as she said, “wow, it’s huge.   It must be 9 inches.”

“Less talking, more sucking,” I said and I shoved Kiera’s head at my cock.   She licked from the base of my dick all the way to the tip which sent shockwaves through my body.   Then she started sucking my cock.   First she started with just my head and it’s like she knew exactly where to hit.   She kept brushing this one spot with her tongue and I knew I couldn’t hold onto my load much longer.

“I’m gonna cum,” I shouted.   Kiera looked at me with a wolfish grin and said, “Cum in my mouth.”

That sent me over the edge and I grabbed Kiera’s head and made her pump my cock until I came.   I spurted three huge loads down her throat and there was so much cum that it started flowing down her cheeks.   She quickly gathered up all of my seed in her mouth and she looked at me.   Then, she mounted me brushing up against my rapidly softening cock and did something I never expected.   She started making out with me sharing my cum and pushing it into my mouth.   It was salty, thick and warm but I didn’t care because I was getting the best lap dance of my life.   After we had both swallowed my load we looked over at Jenny who had been rubbing herself this entire time.   I looked at my sister then back at Jenny and said, “Would you like to join?”