When Kim was sixteen, she tried hard to seduce me.

My Horny Step-Sister
One morning after taking my shower, I walked back into my bedroom and there laid my sister, Kim, with her legs spread, her tank top pulled up to reveal her tits, smiling at me.
“See anything you want, Bobby?” she asked.
I admit that she was tempting. Kim had a nice body, a cute smile, and had been flirting overtly with me for two years! My cock began to grow as I looked at her and thought how arousing it would be to suck those nice tits and to push my cock into her and pop her cherry. That’s what she wanted.
But even with all the flirting, I was always able to turn her down. Even the day she grabbed my cock in my pants and said, “Let me suck you off,” I was able to say no.
– – – – –
That went on almost daily until today. Kim was now eighteen, was probably no longer a virgin, but she still wanted me.
It was a summer weekday and we both were out of school. Our parents were at work. That’s when she called me into her room.
“Hey, Bobby! Would you come help me with something?”
I thought, “Here we go again. What’s it going to be this time?”
My Horny Step-Sister 2So, when I walked into Kim’s bedroom, she was on her knees on the bed, wearing only panties and a singlet pulled up over the nice breasts! Her hair had grown longer and she now had cute bangs. Her gorgeous tanned body was perfect and her smile said, “See anything you like?”
“Hey, Bobby. I’m really horny. Maybe you can help me.”
My cock had grown rock-hard as I looked at her and she noticed it.
“You have a nice hard-on, Bobby. I’ve wanted it inside me for two years!”
“Have you now?”
“Yes. And I would love to give you a nice blowjob,” she said as she crawled toward me.
I knew at that moment that I was going to give in. Whatever Kim wanted to do, I was going to do. So, I dropped my shorts and boxers to set free my nine-inch cock. It was the first time she’d seen it.
“Oh my god! Your cock is so big and hard,” she said as she took it in her hand and stroked it slowly.
“Suck it,” I ordered.
She smiled up at me, then slipped it into her mouth almost all the way. She moaned as she began to bob her head on it.
I took her head in my hands, held it steady, and fucked her mouth for less than two minutes before filling it with my thick cum.
My Horny Step-Sister 3“Mmm!” Kim jerked and moaned, not expecting me to shoot off so quickly. Then she started to swallow each spurt as it shot into her mouth.
Her sucking and swallowing actions extended my climax even more than the realization that my step-sister was sucking me off! Once my climax was over and Kim had swallowed everything, I pulled her face to my stomach and my cock slipped down her throat. She gagged and struggled, but I held her face tightly against me for at least thirty seconds, then let her go.
After coughing and swallowing, she said, “You forced that cock of yours down my throat!”
“I did…and it felt wonderful too. Don’t you like to deep throat?”
“I’ve never done it before, Bobby!”
“Well, you’ve been trying to seduce me for two years, so I figured I’d see if you liked a good throat fucking.”
“Well, it hurt a little at first, then it was okay.”
“Good. Then later I’ll throat-fuck you again,” I replied and started to walk out.
“Wait! I want you to fuck me now,” she said as she pulled off her panties and singlet and laid down on the bed.
I’d never seen a more inviting and sexy body in my life! Kim was lying there with her knees up and her shaved pussy staring me in the face. I started to get another hard-on.
“Mmm. You’re getting hard again. Come put it in me and I’ll fuck your brains out.”
As I crawled between her legs, I thought, “We’ll see whose brains get fucked out.”
As I pushed my cock into Kim, she moaned and wrapped her legs around my waist. We kissed for the first time as I started to fuck her slowly.
“Oh, Bobby. Your cock feels so good inside me. This is what I’ve wanted for two years,” she whispered as she pulled with her feet. “I wanted you to pop my cherry, but you waited too long.”
I slipped one hand under her ass to lift it and grabbed a handful of her silky hair in the other and we fucked for almost an hour. She had one orgasm after another before I blew my load.
“Oh fuck, Bobby! This is so good! You can fuck me like this every day if you want to. And I can slip into your bedroom every night. We can fuck then sleep together.”
I rolled off beside her and said, “That would be nice, but very dangerous. Mom and dad might catch us.”
“Well, if we’re really quiet they won’t.”
“I don’t know. I’ll have to think about it.”
Then she slipped down and sucked my cock clean of all our juices, then crawled into my arms and went to sleep. I stroked her silky hair, then went to sleep myself. Fucking my step-sister through five orgasms was tiring!
– – – – –
Kim and I continued our “affair” all summer until school started. Then about once a week she’d slip into my bed around midnight for a nice session of sixty-nine, then she’d slip back to her room. We never did get caught. And I’m amazed that she never got pregnant either!