Chapter 2 - DNA Results

The kiss Carrie gave me on the floor of her bedroom seemed to remove any inhibitions she had about continuing to do so. Almost every day after that, she found an excuse to corner me somewhere and kiss me. That was it was though; a kiss. If I tried to put my hands on her hips, she slapped them away. If I tried to put my hand up to her face, she ended the kiss and slipped away. She ended each kiss by saying, “that’s for later tonight when you’re thinking about me.”

Little did she know that I never waited until later that night. All it took was one touch of those cherry glossed lips on mine, and I was headed to my room to relieve myself. I usually managed to last a little longer than I did that first time, but sometimes I didn’t. Every time I started stroking my cock, my mind was full of my sister’s face. Usually where she was smiling at me with her lips still parted as she backed away from our kiss.

Hell, I didn’t even need to look at porn on my phone anymore. Every time I jerked off now, it was always to Carrie. I had no idea what I was supposed to do about it. It was completely wrong, but I hadn’t been the one that started it all. She wouldn’t talk about it, either. Every time I tried to bring it up, she smiled mysteriously at me as she walked away. I even brought it up in the car on the way to school, but she only stared out the window with that coy little smile on her face.

I was in the kitchen pantry one afternoon, bent over rummaging through a crate of snacks. Suddenly, someone grabbed me on both sides of my lower ribs, tickling me. I stood up too quickly and bumped my head on a shelf as I came up.

“Ow!” I cried out as I turned around to see Carrie standing there, one hand over her mouth in surprise and concern. Mom and Dad weren’t home, so all day she’d only been wearing panties and a crop top. The top ended right below her breasts, revealing her nicely toned midsection. I’d caught glimpses of her scampering around the house dressed like that all morning, but this was the first chance I’d had to get a good look.

My eyes were immediately drawn to the crotch of her panties. They were white and made of a thin, stretchy fabric that left very little to the imagination. The fabric stretched tautly over her mound, outlining the shape in exquisite detail. I could see the slight swell of her lips and the way the fabric dipped ever so slightly into her slit, hinting at the treasure within. The sight was both innocent and incredibly erotic, and I found myself unable to look away. My mind raced with thoughts of what lay beneath that thin layer of fabric.

“Oh ... Mark! I’m so sorry,” she said. She reached up and grabbed my head with both hands pulling it down towards her. “Let me see.” My face was smushed between her breasts, and all thoughts of my head injury disappeared.

“Is it okay?” she asked as she rubbed the top of my head with one hand, using the other to keep pulling my face into her bosom. I continued to enjoy how soft those pale, beautiful orbs were. I played with a few boobies back in high school, but never had my face pressed against any like it was at that moment. Her fragrance was very pleasant today also. Some type of apple blossom maybe?

“Mwah,” she said as she kissed the top of my head. “Let me kiss it and make it better.” She kissed it a few more times, making exaggerated noises each time she did. Then she pulled my head up and leaned in until her lips were mere inches away from mine. She was also looking directly into my eyes. We had the same eyes, which we got from our dad, so it was almost like looking into a mirror.

“I bet you’ve been enjoying playing with yourself after my kisses, haven’t you Mark?” she asked with an evil looking smile. “Squeezing it ... stroking that cock until it shoots out all over. Is it my face you see, big brother?”

I blushed furiously. How did she always know exactly what to say to make me do that? Carrie pulled my face in closer, and her lips landed on mine. This time the kiss was a little more involved, so I felt emboldened enough to slide my hand up her side. I cupped the bottom of her breast underneath the top. It was only a quick feel, but damn her tit felt so great. So soft and warm.

Carrie jerked back almost immediately, glaring at me as she brushed my hand off her breast. “Hey!” she barked. “It’s okay for your sister to kiss you, but it’s not okay to feel your sister up.”

“How is that fair?” I asked, realizing even as I said it that I sounded whiney.

“It’s fair because I say it’s fair.”

“Well, it’s not very nice to get me all turned on then shut me down. It’s kind of mean, actually,” I finished lamely.

She cocked her head to the side and looked at me with a raised eyebrow. Then she moved forward and put her arms around my neck, moving in closer for another kiss. Before her lips made contact with mine, she whispered, “You can put your hands on my ass ... if you behave.” Then she started kissing me again.

Carrie’s lips were soft and warm against mine, her breath hot on my face. I could taste the sweetness of her lip gloss, and it was intoxicating. Her hands were on my neck, her fingers playing with the hair at the nape of my neck. It was a familiar touch, but it felt different now. It felt intimate, charged with a new kind of energy.

As our kiss deepened, I felt a thrill of excitement run through me. I slid my hands down her sides, my fingers brushing against the soft fabric of her panties. I reached around until I could feel the curve of her hips, following it until I was cupping the firmness of her ass with both hands. It was exhilarating.

Carrie’s body was warm against mine, her curves fitting perfectly against my body. I could feel her heart beating against my chest, a steady, reassuring rhythm. Her ass was firm and soft at the same time, and I couldn’t help but squeeze. She didn’t pull away. Instead, she pressed herself closer, her lips moving against mine.

I could feel the effect it was having on me, my body responding to her touch. My cock was hard, pressing against the fabric of my shorts. It was a familiar feeling, but it was different now. It was more intense, more urgent. I wanted her ... all of her, and I couldn’t help but wonder if there was a chance she felt the same way.

Carrie ended the kiss, pulling back and smiling at me. “Good boy,” was all she said as she turned and left the pantry. I stood there slackjawed, watching her go. “Did she just say ‘good boy’ to me?” After a moment, I remembered the huge tent in my shorts, so I rushed to my bedroom, the door closing behind me with a soft click.

My heart was pounding in my chest, a mix of excitement and guilt washing over me. I couldn’t believe what had just happened. My sister, my own flesh and blood, had kissed me in a way that was far from innocent. And I had enjoyed it. I had wanted it.

I rushed through the house and down the hallway to my bedroom, closing the door behind me. I fell onto my bed, my hand instinctively going to my crotch. I could feel the hardness there, the urgent need for release. I shoved my shorts and underwear down to my ankles before wrapping my hand around my cock. It was a familiar motion, but it felt different now. It felt more intense, more urgent.

I closed my eyes, the image of Carrie filling my mind. Her lips, her body, the feel of her ass in my hands. It was all so real, so vivid. I could still taste her on my lips, could still feel the warmth of her body against mine.

As I stroked myself, the guilt started to fade, replaced by a growing sense of arousal. I was doing something wrong, something taboo, and it was turning me on more than anything ever had before. I could feel the orgasm building, a powerful wave of pleasure that threatened to consume me. Of course, that’s when my bedroom door was flung open.

I looked over in a panic to see Carrie standing there, looking upset. She had one hand on the doorknob and the other was holding her iPad. I let out a yelp and yanked the sheet over my crotch.

“Damn it, Carrie! Don’t you know how to knock?” I cried out.

Carrie came in and pushed the door shut behind her. “Don’t you know how to lock a door?” she asked in return as she came over towards the bed.

“What do you need?” I asked in frustration. I had been so close to blowing my load. I’m pretty sure I had never stopped that close to spurting. It was also awkward as fuck to have the person I was stroking it to now standing a few feet away.

“Oh, Mark! I don’t know what to do. There’s no one else I can talk to about this,” she said. Her eyes were full of tears, and one drop slid down her cheek as she was speaking. I sat up a little more in the bed and scooted over a little towards the center.

“It’s fine, Carrie. Sit down and tell me what’s the matter,” I said as I patted the side of the bed. She sat down on the bed, bending one leg under the other as she turned towards me. She gave out a sob.

“Carrie, what’s wrong? I’m really starting to get worried,” I said.

She looked up at me and held the tablet up. “I got the DNA test results back. Since we took it at the same time I linked our tests. I ... I don’t know what to do, Mark.”

I took the tablet from her, with a queasy feeling in my stomach. I scrolled through the results, my eyes scanning the words on the screen. And then, I saw it. The words that made my blood run cold. “No biological relationship detected.”

I looked up at Carrie, my mind racing. “This ... this can’t be right,” I stammered. “There must be a mistake.”

Carrie was silent, her eyes filled with tears. She looked so lost, so scared. I reached out and took her hand in mine. “It’s going to be okay, Carrie,” I whispered. “We’ll figure this out. Mom and Dad will be home later tonight and we’ll ask them about it.”

“No way,” she said, looking a little angry. “They didn’t tell us that we were adopted, so fuck them both. They should have at least told us when we turned eighteen.”

“Why do you think we’re both adopted?” I asked. She started to glare at me before she answered.

“Oh, so you think it’s just me that’s adopted? We don’t have results from Mom or Dad to compare to, so both of us are probably adopted. Why would they adopt just one and then have a kid naturally so close together?”

“Okay, okay,” I said, patting her on the hand to try to placate her. “I mean, they’re still Mom and Dad, right? They still raised us and love us.”

“I guess you’re right,” Carrie said as she wiped her eyes. “Don’t say anything, okay? I want to figure things out first.”

I only nodded. Carrie sniffed one more time then looked down at the sheet, directly at the tent covering my erection.

She looked back at me and gave me a sly smile before she asked, “Did I do that?”

I tossed the tablet to the side and clapped my hands over my groin, once again super embarrassed by my brat of a ... sister? I felt my face flush again. “You know you did,” I told her. “There’s no reason to tease me about it.”

Carrie smirked and brought her other leg up so she was sitting crisscross on the bed, right next to my waist. “I tease you because I like to tease you, and obviously you enjoy it as well.” She gave a pointed glance at my hands as she spoke.