With a sudden desire I let go of my sister and stood up, tossed my towel aside and then laid back down the opposite way so that my head was at her legs, near her crotch. She giggled happily and lifted her leg wider and immediately grabbed my penis and gently began to touch and feel it. I bent my head down to gaze between my sister’s legs and looked with wonder at her body. I brought my hand back up to touch her, ever so gently and tenderly feeling her softness. I admired the silky curl of each golden hair on her pussy lips, and inhaled her fragrance. I felt her touching me in a similar way – slowly feeling my penis, lifting the shaft, touching the head with her thumb.
I used my fingers to part her pussy lips and admire the engorged folds of her lips. I pulled back the skin toward the very peak of her mons to reveal the small protrusion of her clitoris. She gasped with pleasure as I pressed the tip of my thumb against it and made small circles around it. In response, Sara placed her thumb at the base of the head of my dick and firmly began to massage me there. It sent waves of pleasure through my body and I almost did not notice that she was trembling almost as much as me.
I toyed with her clit more firmly and she did the same with my penis until we were both emitting quiet moans of pleasure. I watched with fascination as her cunt lips had swelled even more, and deeper down had parted at the entrance of her vagina. I watched as clear fluid began to glimmer and then gather between the lips, like dew on a rose, until a drop slowly crawled onto her pussy lip and down her thigh to the bed.
Her hips and legs began to buck and jerk and I heard her gasping and moaning. Suddenly her gasping stopped and I felt my penis wrapped in warmth and wetness as she slid her mouth over it and began to lick and suck passionately. It only took a few moments and I was fighting to hold back my orgasm. She was clearly in the midst of hers and she trembled and shook and began to pump her head along my shaft. I grunted and released a stream of semen into my sister’s mouth before I even knew it was coming. She kept sliding her head in and out as I ejaculated. Her body had regained control and she focused her energy on pulling out of me every drop I could manage to expel.
When I could cum no more, she tenderly slid me out of her mouth. We lay there, exhausted, for some time. Since she never made a move to spit out my cum, I assumed she had swallowed it again. Eventually I got up and lay down with her face to face. She turned to lay on her back and I lay on my side against her, caressing her.
It seemed like hours later when she spoke.
“Why do you think we’re okay with this?”
I was silent for a while, then asked her to explain what she meant.
“Well,” her eyebrows knitted together as she stared at the ceiling, “Brothers and sisters aren’t supposed to be this way. We’re not supposed to be intimate.”
I trailed my fingers over her stomach as I thought. “I’ve thought a lot about that.”
She turned her face to look at me as I explained.
“With everyone else, as you get to know them you have to pretend some of who you are. Since you don’t really know them, you end up trying to like what they like, or act like them to get them to like you. You know, not always, but pretty often.”
She nodded that she understood.
I continued. “With us, we’ve known each other since we were kids. We already know everything about each other and we accept each other. There’s no pretending, no hiding who we really are. And what’s weird is that for you and I to get intimate it’s looked at as perverse, while other people are willing to pretend who they are and get physically intimate with someone else who’s doing the same and it’s considered normal.”
“Like half the girls in my class who are sleeping around with guys they don’t even like just so they feel pretty or don’t feel alone.” Sara whispered.
“Yeah.” I nodded. “For whatever reason, you and I are comfortable together, and desire that intimacy. We’ve got a pure heart towards each other. Neither of us is pretending to be someone we’re not. I mean, we both know someday we’ll each be with someone else and hopefully they’ll accept us and love us like you and I do each other.”
“Right now, we’ve got this one heart between us that’s been bringing us closer and closer not just as brother and sister but just as a guy and a girl. I want you as much as you want me – and I want to know you as deeply as I can.”
We were both silent for a few minutes as we held each other in the moonlight.
Her hand slid up my chest to my shoulder. She leaned up and kissed me.
My arms wrapped around her and I kissed her.
She slipped her arms around my chest, pulling me on top of her. Her legs stayed together for a hesitating moment, then spread apart to let me lay on her fully, holding her and kissing her.
We were lost in the moment, lost in our embrace. Our naked bodies held tight together as we pressed our lips together and felt each other with our hands. I hardly realized it had been long enough for my body to build another erection; it grew without any need for me to acknowledge it. As I lay on her and as her body moved sensually under me, my penis rose and my shaft pressed against her softness. She began to lift her hips to slide her herself along my shaft and I responded by firmly grinding myself against her.
I broke our kiss and turned my head down to kiss her neck, sliding my body down hers a few inches. She moaned with pleasure as I necked with her and my hands felt her back. I rocked my hips back several inches and felt the tip of my penis slide down along her wet folds. I rotated my hips forward and felt the tip of myself just begin to sink between those folds. Sara’s body tensed as she felt me pressing at the entrance of her body, feeling her warm lips parted around the head of my penis.
“Alex…” she whispered, anxiously, “You’re going inside me…”
Pulling my lips away from her neck I whispered, “I know.”
She was worried, but her body was softening.
“Sweetie… Alex… if we do it…”
I pressed more firmly. Her hymen help back my penis but was stretching. Sara stiffened again.
“I know.” I whispered again and held her tighter as I pushed my hips forward.
“… it’s incest.” she gasped and her hymen gave way.