She motioned me to come closer to her, and I sat next to her on the bed, back leaning against the back of her bed sitting where she sat when she heard me masturbating in my room. I sat still and looked at her. She put her hand on my thigh, and leaned towards me. She got close, I closed my eyes, and my sister became my first kiss. There was a blinding second where all fear went away, where I felt as if everything in the world was alright. I came back to reality to our hot lips touching, warm and wet, and she opened her mouth, and I opened mine, and our tongues met. I felt her hand move up my thigh, towards my throbbing member. I shook, and slowly pulled away from the kiss. Her eyes were still closed when I opened mine, and she was smiling. She opened her eyes and moved her hand up the waste bad of my Pjs. I let out a soft moan of trepidation and expectation. I thought maybe we would just look at each other naked, but it seemed like she had something else in mind. I put my hand around her and came in for another kiss. She was passionate and tender, assertive but yielding. I didn't have a frame of reference but I was sure she was a good kisser. As she slid her hand along the perimeter of my waste band, she stuck her tongue into my mouth. In one swoop, she slid her hand down my pants and underwear, and found my cock. She pulled away from the kiss, and held on to my dick.
"What the—" she said.
"What's wrong?" I said.
"Ass up," she said, motioning.
She shifted her position, and I lifted my butt in the air so she could pull my pants down. She'd pulled my pants down when we were kids, but oh how this was different.
"Holy shit," she said as my dick flopped out.
"What?" I asked, completely unaware.
"Do you realize you have an enormous dick?"
"What?" I said. Up to this point I thought I was pretty much average.
"This is the fattest cock I've ever fucking seen," she said, and suddenly I felt some confidence.
I leaned forward for another kiss as she started slowly running her hand up and down my shaft. I thought I was going to cum right then and there, so I pulled her hand away, and made a move to take her top off. She pulled back and put her hands over her head so I could pull it off of her. Oh. My. God. Seeing my sister with no top on was one of the strangest most amazing sights I'd ever seen. The sight of her skin uninterrupted—no shirt, no bikini, no bra, just perfect uninterrupted breast. It seemed so natural and yet so different. It felt like she'd just let me in on a big secret. Her breasts were amazing. They weren't very big, but they were certainly perky. She was young, and I decided, perfect.
"What do you think?" she said.
I was speechless and she grinned. She put her hand back on my dick and I very cautiously went to feel her boobs. I didn't know what I was doing, but gently cupped them, let them fill my hands. They were soft but firm. I didn't think I could get any harder, but I swear my dick stiffened a little more. I ran one hand up her back, and made circles around her nipple with the other. Finally I decided to get daring slowly edged my right hand towards her PJ bottoms. We kept kissing. She didn't stop me as I circled her wasteband the way she'd done for me. I felt her body tense up as I slid my hand underneath it, and she let out a little moan as I ran my hand down her smooth thigh. Her legs were clasped together, but widened as I slowly moved my hand up. I found her trim bush as I moved down an inwards, and made my way to the mythic warm and wet spot between her legs. She was soaking, like, soaking. She stopped kissing, and pulled her bottoms down and off. She was completely naked now. I took my shirt off, and there we were, brother and sister in bed together, naked as our parents had made us. She put her hand on my chest. I wasn't buff, but I did push ups and she seemed to appreciate that for the first time. She put her hand back on my dick and started pumping fast. I put my hand back on her thigh and she spread her legs wide. I followed the wetness, and put two fingers in at once. Maybe it was too fast, or maybe just right. She let out a loud moan as I entered, and I suddenly got worried about our parents hearing—but then I stopped as I felt climax building. I started pulling my fingers in and out, fast, and she started wriggling. She pulled away from the kiss, and started breathing hard, eyes still closed. Her pumping on my cock slowed down and she gripped tight as kept going. She moaned louder and louder, but I didn't care. She started pumping my cock again and practically yelled out:
"Oh fuck I'm cumming!"
Her legs clamped around my hand and her body shook. It subsided and I kept going, but she shoved my hand out.
"Will you fuck me?" she stated, not really a question. She started pumping my cock furiously. I felt a fire burning inside me, I was terrified and I knew how wrong it was, but I said,
"I think so."
She took her hand off and pushed me down on the bed. She straddled me and for a second we both were both still, silent in contemplation about what seemed like an unstoppable event. She took my cock in her hand, guided it to the entrance, and in a slow, smooth motion, pushed down—first taking the head. I watched it disappear inside her, and then the rest of the shaft. She winced but then took on a look of bliss as she slowly accommodate my apparent size.
"Oh fuck," she said.
Slowly at first she slid up and down my pole, her hands on my chest for support. Then she sped up and sped up, and it was her bed hitting the wall. She was so warm inside and snug and perfect. Her tits bounced up and down close to my face, and it wasn't long before I felt those familiar sensations down below.
"I'm gonna cum!" I moaned.
"So fucking cum," she moaned back.
I had permission and let go, and the ecstasy kicked in. I was overcome by her scent, her beauty, her moans. My cock ached and throbbed sliding within her smooth wet pussy and it pulsed, and then pulsed again, and then a wave of hot white oozing cum shot out of me, and then another and another, and another, and my sister bounded up and down me faster and faster as I filled her warmth with mine. I lost my virginity to my sister, no condom. When she felt my orgasm finish, she slowed down and eventually pulled off. She lay down next to me, panting, and a little sweaty.
"Are you gonna..." I started, out of breath.
"I'm on the pill," she said, "we should be fine."
After that, we both drifted off to sleep. I woke up the next morning feel weird—weird that I didn't feel guilty. Actually, I felt great. I woke up a little before her and watched her bare chest rise and fall, her brown hair all over the place, the room still smelling like sex. She eventually woke up, and smiled at me. I leaned in and kissed her, and suddenly realized just how much I loved her. Incest was supposed to be wrong and all, but in that moment it seemed like the most perfect, pure thing—to be able to love someone and then realize how much you love them. I think you know what I mean, or maybe you don't, but it doesn't matter.
We spent the rest of that day making eyes at each other, teasing each other like siblings and touching each other like new lovers whenever no one was looking. We kept it up all summer.