It Was in the Genes - Cover

It Was in the Genes

Copyright© 2024 by Kin Asdi

Chapter 9

Romantic Sex Story: Chapter 9 - What do you do when your sexy sister, Cindy, is in love with you? Casper, a true nerd at heart, finds out she is adopted and realizes he has fallen for her as well. The dilemma of their ‘forbidden love’ forces them to find a bearable solution. Will they succeed to have a happy life after all?

Caution: This Romantic Sex Story contains strong sexual content, including Ma/Fa   Fa/Fa   Consensual   Romantic   BiSexual   Heterosexual   Fiction   Brother   Daughter  

Nervously I shaved my stubble, making sure my face was as smooth as possible. I had taken a new razor to make sure I would succeed without any cuts. Our parents left about an hour ago and I knew Cindy needed to finish some work for school. It was the last Thursday before Valentine’s Day and I loathed the fact my attempt to do it last week had failed because my parents came back unexpectedly. Cindy and I were lucky that we saw the headlights of their car. She barely had time to rush with her clothes in her arms into the bathroom. The only thing I had to hide was my erection, which wasn’t a big deal when I was sitting behind my desk.

It seemed mum had a migraine attack; simply because she forgot to take her medicine. It was clear dad was not amused and neither were we.

I dried my face, and I was pleased with the result. Automatically, I grabbed my aftershave, and I almost applied a generous amount of fragrance to my face but I remembered the article that suggested to keep from using any unnatural scents. Quickly, I dashed to my room where I had turned up the heating and started setting out the little lights I had bought for the occasion, on my shelves. Carefully I spread the satin sheet over my mattress and that looked pretty amazing. I double checked the items under my pillows; four silk scarves I’d nicked from my sister’s dresser and a luxurious blindfold that I bought online a few weeks ago. The bottle of lube was still in a hidden recess. I looked around and I was convinced my room was ready.

I blew out my breath, trying to get rid of my tensions. This was it. It was time to help my poor sister.

I stepped out of my room, and I collided with her. Luckily her amply chest cushioned our crash quite a bit. As I pulled her a little closer, I asked, “Are you okay?”

She nodded. “I was just on my way to you. I’m done for tonight.”

“Good,” I responded, lowering my voice a few tones, “I have a surprise for you.”

“Oh goody,” she purred, “bring it on, bro.”

I chuckled nervously when I grabbed her hand to guide her into my room. “Close your eyes.”

My breath hitched when I saw her meticulously made-up eyes. I was a little disappointed she hadn’t used lipstick, even though I knew it would have been a pain to get it off my face after making out with her. I stopped her in the middle of my room, and I checked it once more before I eagerly said, “Alright, open your eyes.”

“Ooh wow!” She cooed, “this is so cozy!” Then she pushed her chest forward and said disdainfully, “An A-plus for your effort, young man.”

I laughed. “I’m pleased you’ve recognized the blood, sweat, and tears it took.”

Her lips turned into a smile, and I couldn’t stop myself from kissing them. I loved the playful swirling of tongues, but our time was limited, so I reluctantly stopped the kiss.

“Come and sit down, sis,” I said softly.

She instantly knew there was something going on with me. With big eyes she looked at me while she lowered herself onto the mattress. “I want you to undress, sweetheart.”

She raised her eyebrows and asked coquettishly, “Are you going to help?”

I kneeled down to undo the dainty straps of her heels and after I’d freed her feet, I slowly moved my hands over her beautifully toned legs. I hiked up her skirt and tugged at the delicate fabric of her flimsy slip. Without a word she lifted her hips from the bed which allowed me to pull her deep purple thong down her legs. Our eyes met when I methodically undid the small buttons of her silk blouse and as soon as I was done, my hands moved over the smooth skin of her back, in search of her bra strap. I smiled because I could undo the hooks in one go.

“Stand,” I ordered her with a friendly voice.

I followed suit and slowly slid the blouse’s slippery fabric down her shoulders. I pecked her on the lips while I pulled the lace strips down her arms. The large cups of her bra slipped down, revealing her mouthwatering nipples. I nuzzled them; first the left one and then the other.

Cindy moaned softly when I caressed the small of her back, hunting for the button and zip to remove the last piece of clothing. All those love lessons we had were very useful and with ease I managed to slide the skirt off her hips.

“Today it’s going to be a little different,” I told her soothingly while I guided her to the foot end of my bed, “I’m going to blindfold you.”

She gasped but didn’t say anything when I gently forced her to sit on the edge of the mattress. I pulled the mask from under the pillow and showed it to her. “I want you to put it on.”

She complied instantly and I was happy to see she had done a decent job. “I love you,” I whispered in her ear.

“Casper,” she gushed, “I’m scared.”

“I know,” I said soothingly, “therefore, I want you to give me a safe word.”

“Safe word?”

“Yes. I assure you that you aren’t going to need to use it, but it’s for just in case you really want me to stop.”

“Oh,” she murmured while nervously fidgeting with her hands. “Red. My safe word is red.”

I rolled my eyes, knowing all too well where that was coming from, but I answered calmly, “Alright, Cindy. As soon as you say the word red, I’ll stop immediately. Now, lie down baby and let me give you the most amazing evening you’ll ever have.”

She giggled nervously but complied with my request. I crawled next to her body and as I caressed the soft skin of her arm I said softly, “Put it above your head sweetheart.”

She hesitated for a second, but then she elegantly stretched her arm. With trembling hands, I pulled out a scarf and carefully wrapped it around her wrist. I had practiced it hundreds of times because I knew I had only one chance to get it right.

“Oh god,” she whimpered.

“Hey babes,” I said encouragingly, “you’re such a brave woman.”

“Please, kiss me Casper.”

I obliged and briefly pressed my mouth to her lips. “I’m here. I’ll never leave you.”

She smiled briefly and asked, “Do you want to tie my other arm as well?”

“I do.”

My heart was beating in my mouth when she voluntarily stretched her arm above her head. In a few seconds, her other arm was restrained as well. I double checked the tightness before I went down her body, tracing soft kisses over her smooth skin.

My lips followed the curve of her thigh, placing ever so soft kisses on her silky skin. I adored her bravery when she spread her legs wide, but my heart started to beat a lot faster when I saw her dripping wet pussy. She was turned on by what I was doing to her!

“Oh baby, my sweet baby,” I said sincerely, “you are so beautiful.”

“Please, Casper,” she grumbled. “More action, less words.”

I laughed and carefully tied her ankle to the bed frame, “Will do babes, will do.”

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