Note: Both parties in this story are over 16.
It can get really hot at night in summer in this part of the country. Like, "lying awake at two in the morning with your pajamas clinging to you" hot. That was the case that night, so finally I went down to the basement. I figured if I wasn't going to sleep, I might as well be a somewhat comfortable temperature.
My dad refurbished the basement a few years ago, and it is truly a family room to envy: a sectional couch taking up all of one wall and half of another, a big-screen smart TV, and a refrigerator and freezer fully stocked with snacks and drinks. It's also about twenty degrees cooler than the rest of the house during summer, and I've spent a few nights down here when it was too hot to sleep.
This was the case one night as I sat with my feet up, watching YouTube videos, while everybody else in the house was asleep. Or so I thought...
"Man, I hate summer." My brother, Jason, came down in only his pajama bottoms and, like me, was drenched in sweat. "What're you watching?" he said, sitting close enough to me that I could smell how sweaty he was. Even slouching, he towers over me.
"Just some gaming videos."
"Looking for tips?"
"Please, I fucking dominate on Call of Duty." My brother chuckled at this. "No, I'm watching people get caught cheating."
"So, looking for tips to not get caught?"
"Hey!" Cracking up, I tossed a throw pillow at him, and he deflected it, laughing as well. He then did something I wasn't expecting; he grabbed me as if to tickle me, but then...kissed me. I should confess at this point that I've always felt a little in love with my brother. Not "make out with him" in love, but...Well, I don't know, because when he started kissing me...
I remember placing my hands on his chest to try and push him off me, but the moment I touched his hot, sweaty body, I think I started feeling him up. As we made out, Jason's hand made its way into my pajama top, where he began groping my tits. At the same time, one of my hands found the front of his sweatpants, through which I could feel his already rigid cock, and I began slowly stroking it through the fabric. Jason briefly took his hand out of my shirt to guide mine into his pants, where I could feel his dick for real; throbbing, the swollen head already oozing pre-cum, which I smeared over the tip with my thumb.
Eventually, Jason lowered me onto my back, then leaned over me. "May..." After hesitating for a moment, both of us staring at each other, breathing hard, he started unbuttoning my pajama top. My heart was going a mile a minute as he exposed my naked chest, rising and sinking as I breathed hard. While I'd been down here a good while, my skin was still clammy, and my nipples were fully at attention from the moisture. My brother again started feeling up my small breasts, while he leaned back down and continued kissing me. I placed my hands on his gaunt sides, and held him so close I could feel his heart beating.

Jason started kissing my neck, then down my chest, and then began sucking and gently biting my achingly hard nipples. As if I wasn't turned on already, this had me grinding against his chest. Now holding onto my sides, Jason started kissing down my stomach, and licking around my navel. By this point, I was just about to beg him to start eating me. My brother pulled my pajama bottoms off me, then I felt his tongue on my pussy, causing me to gasp. I had masturbated before, but that didn't come close to how this felt; I had never felt as dirty as I did at this moment. Somehow, the sound of him spitting out the odd hair made it even sexier for me.
Suddenly, a familiar sensation washed over me: an orgasm, but more intense than I'd ever experienced. I had to fight the impulse to buck my hips and knock Jason off me, but I did let out a cry loud enough that I was certain in the moment I'd awoken our parents. As I recovered, Jason came up, again kissing around my belly button. "God, May..." he mumbled between kisses, "I have wanted...to eat your pussy...for so long..."
"Fuck me."
"Hm?"
"Fuck me, Jason." Smiling, my brother came back up and gave me another kiss, allowing me to taste myself on his lips, then I felt the tip of his cock rubbing up and down my drooling slit. "Do it, Jason...put it in me..." Jason continued teasing my pussy with the head of his dick. "Please...Do it...." I was just about to cum just from the teasing, when I felt his cock push its way inside my cunt, causing my face to contort, my body to tense up, and me to groan softly. I also felt my hymen break. "Ohhh, God, Jason...That's it..." Jason started to grind into me and, almost on reflex, I grabbed his upper arms and dug my nails in.
"Yes...Uh! Yes..." My brother's grunts and moans as he fucked me again turned me on even more.
"Oh, God!" I cried out, my small breasts whipping up and down, as Jason sped up, and his groans got more vocal. As my brother continued to thrust into me, I sensed he was nearing climax, so I told him, "Sit down...Let me suck you..."
My brother again sat sprawled out on the couch, as I knelt in front of him, sucking my juices off his pulsating member. Before long, he started to groan and jerk his hips, so I climbed into his lap and began riding his dick. I had a death grip on Jason's shoulders, and my little titties whipped up and down as I rode him. Almost immediately, I felt the orgasm approaching, and his now more vocal groans told me he wasn't far behind. Finally, letting out a scream that echoed on the basement walls, I climaxed harder than I ever have before and, with a loud groan, my brother followed immediately, his cock erupting inside me.
Both our hearts about to explode out of our chests, we shared one more long and sultry kiss; one which lasted actual minutes, while I savored the feeling of my brother's cum in my vaj. We slept the rest of the night on that couch, naked, my brother spooning me.
