Skip to content The sun hammered down as I dragged myself up the driveway, sweat clinging to my back after a double shift that had stretched my patience thin. But my mood lifted instantly at the sight waiting in our backyard: my sister Chloe and her friend Ava lay on lounge chairs by the pool, their skin glistening with oil, barely covered by bikinis.
Chloe lay face-down, her bikini top untied to avoid tan lines, the round curves of her ass barely contained by a thong that disappeared between tanned cheeks, and she wore her blonde hair in a ponytail. Beside her, Ava was on her back, one arm draped over her eyes. She was Chloe’s opposite in every way, pale where my sister was golden, curves where Chloe had athletic lines. Her breasts strained against a top that seemed two sizes too small, rising and falling with each breath.
I peeled my sweat-soaked shirt off, tossing it over my shoulder as I pushed open the gate to the pool area. The metal latch clicked, and both girls turned.
“Hey, big bro,” Chloe said, propping herself up on her elbows, careful to keep her chest pressed against the lounge chair, although I could see the upper parts of her breasts. “Thought you were working late.”
“Got cut,” I said. “Too many people called in for the evening shift.”
Ava’s eyes tracked the movement of my hand, then drifted down to my chest, lingering there before dropping lower. I pretended not to notice.
“You ladies want anything from inside? I’m grabbing a drink.”
“We’re good,” Chloe said, but her eyes flicked to Ava, whose gaze was still fixed somewhere south of my belt.
I bent down to pick up a towel someone had left on the concrete, making sure my basketball shorts rode low enough to show the band of my underwear and the ridge that even in its dormant state betrayed my size. When I straightened, Ava had pressed her thighs together, a flush creeping up her neck.
“Suit yourselves,” I said, heading for the sliding glass door.
“Oh, by the way!” Chloe said. “Ava is sleeping over today.”
“Have fun,” I told her with a wink.
Inside, the air conditioning hit my skin like a blessing. I grabbed some water from the fridge and headed upstairs, taking my time. My bedroom overlooked the pool, and as I entered, I left the door slightly ajar. The window was already cracked open from the morning.
I slumped down in my chair. Their voices drifted up through the window, clearer than they probably realized.
“God, your brother’s gotten even hotter since last summer,” Ava said, slightly hushed but easily audible.
Chloe laughed. “You should see how many of my friends suddenly need to ‘borrow something’ when he’s home.”
“I can see why,” Ava said, and I could almost hear the smile in her voice. “Those shoulders, and that V-line thing …”
I smirked, feeling my cock stir again. It wasn’t the first time I’d overheard conversations like this, but something in Ava’s tone told me this might go further than usual.
“Trust me,” Chloe said, her voice dropping even lower, “my brother’s packing, like, stupid big. I’ve seen it through his gym shorts, it’s obscene.”
My eyebrows rose. This was new. Chloe had never been shy, but hearing her brag about my size to her friend sent a jolt of heat straight to my groin.
“You’re lying,” Ava replied, sounding softer and hungrier. “How big are we talking?”
There was a pause, and I imagined Chloe making some exaggerated gesture with her hands. “Think soda can thick, and long enough he could probably hit your cervix. Bet it would wreck you.”
I had to bite my lip to keep from laughing. Not that she was wrong, I’d had enough wide-eyed reactions over the years to know I was significantly above average, but hearing my sister describe it with such pride was something else entirely.
“God …” Ava’s voice was barely a whisper now. “I’ve never even seen one that size in real life.”
I heard a rustling sound, then Chloe’s teasing laugh. “Ava! Are you seriously squirming right now? Just thinking about it?”
“Shut up,” Ava said, but there was no real annoyance in her tone.
My hand drifted down to adjust myself, my cock now thick and heavy against my thigh, responding to their conversation as if they were whispering directly into my ear. The thin material of my shorts did nothing to hide the growing bulge.
Chloe was still talking, something about an ex-boyfriend who couldn’t compare, but I was focused on the subtle sounds coming from Ava, soft sighs and the rustle of fabric as she shifted position. I pictured her squeezing her thighs together, trying to ease the ache their conversation had sparked.
*****
When Mom got home, we ate dinner. I couldn’t lie. It was slightly awkward as Ava constantly glanced between my legs, and my little sister kept smirking at me. Eventually, it was time to go to bed. I was tired after a long day.
I lay perfectly still in the darkness, sheet draped low across my hips. I fell asleep quite quickly, and I wasn’t sure how long I slept till I woke up in the middle of the night when I heard whispered giggles and the soft padding of bare feet approaching my door.
“Shhh, you’ll wake him up,” Chloe whispered.
“I’m not being loud,” Ava whispered back. “Is he really that heavy a sleeper?”
“Dead to the world, trust me.”
The door hinges whined softly as they pushed it wider, casting a thin wedge of hallway light across my floor. What the fuck were they doing? I kept my breathing deep and regular, eyes closed but not squeezed shut. Through my lashes, I could see my little sister in what appeared to be a crop top and those tiny sleep shorts she favored. Ava wore an oversized t-shirt that still couldn’t hide the fullness of her breasts, bare legs disappearing into what looked like simple cotton panties.
“See, out cold,” Chloe said.
In that moment, I also realized that I had a massive hard-on, which I couldn’t hide now either. They padded closer.
“Oh my god,” Ava said, stopping at the foot of my bed. “Chloe … look.”
Moonlight spilled through my window, illuminating the impressive tent I was now making in the sheet.
“Holy shit, Chloe … it’s real.” Ava’s voice had dropped to an awed whisper. “I thought you were exaggerating.”
“I told you.” The smugness in my sister’s voice made me internally roll my eyes. “Dare you to lift the sheet.”
I couldn’t believe what I was hearing. What the hell were they planning on doing, and what if Mom caught them?
Ava grasped the edge of my sheet. She pulled it back slowly, inch by inch, until it slipped past my hips and my cock sprang free, heavy and veined, already leaking a bead of pre-cum at the tip.
“Jesus Christ,” Ava whispered, and I heard her swallow hard. “It’s … it’s huge.”
“Told you, soda can thick.”
I felt the mattress dip slightly as one of them leaned closer.
“Touch it,” Chloe urged her friend, her voice honeyed with challenge.
Another pause. I focused on keeping my breathing steady, even as every nerve ending in my body seemed to concentrate on the space around my cock, waiting.
Then, contact. Ava’s fingers wrapped around the base. Her hand couldn’t close around my girth, her fingertips not quite meeting her thumb. I fought back a groan as my cock twitched hard in her grasp, growing even harder, a fresh bead of pre-cum forming at the tip.
“It’s so warm,” Ava whispered, awe evident in her voice. “And it’s still getting bigger …”
“See? Told you. Your turn to taste the tip.”
I nearly lost my composure then, a small muscle in my jaw twitching before I could control it. Thankfully, they were too focused on what lay between my legs to notice.
The bed shifted again as Ava leaned in closer. Then, oh god, the wet velvet of her tongue flicking across the slit, gathering the salty pre-cum that had gathered there.
A small moan escaped her, the vibration traveling through the head of my cock and down my spine. “It tastes … different from what I expected, quite good.”
“Move over.” The mattress dipped more substantially as Chloe joined her friend. “Suck it for real, just the head.”
My breathing had become slightly ragged, but I disguised it as sleep-breathing, adding a soft snore for good measure. Inside, every nerve ending was on fire, my balls tightening. I was still surprised, but I didn’t want to interrupt them either.
Ava’s lips stretched around the head of my cock, her mouth hot and very wet. She could barely accommodate the width, her jaw clearly strained as she took me in. A muffled gag escaped her as she tried to take more, drool running down the shaft.
“You’re doing it all wrong,” Chloe whispered, that competitive edge sharper now. “Move over.”
My eyes internally widened. I couldn’t believe my sister was actually going to stick my cock in her mouth. I thought this was some kind of sick joke, but then the wet heat of Ava’s mouth was replaced by my sister’s more confident one. I didn’t have to look. I just knew it was my sister’s lips stretching around my sensitive shaft. She took me deeper despite my girth, her hand stroking the base. I felt her throat constrict around me as she pushed herself further, showing off.
My hips twitched involuntarily, a betrayal that neither seemed to notice. Pre-cum flowed steadily now, coating their tongues, my cock glistening in the moonlight when Chloe finally pulled back for air.
“See? That’s how you do it,” she said breathlessly. “Here, you try the balls while I work the shaft.”
“Jesus, Chloe!” Ava said, trying to stifle her giggle. “Have you sucked your brother before?”
“A couple of times, but only when he’s sleeping. He loves wet dreams. I know since every morning after giving him a head, he’s so kind to me.”
“It’s hot,” Ava said. “Are we going to make him come?”
“Of course, that’s the point.”
They repositioned, and suddenly I was engulfed in dual sensations, Chloe’s hand and mouth working my length while Ava’s tongue explored my heavy sack, growing bolder with each lick. I squinted, and I saw my sister’s blonde hair and the look of lust in her eyes as she bobbed up and down with my shaft in her mouth. Then I saw Ava below her, sucking and kissing my balls till they glistened.
“Switch,” Chloe said after a minute of sweet cock-sucking. “Your turn on top.”
They traded places, each trying to outdo the other and each becoming sloppier and more enthusiastic. Wet, obscene sounds filled the room, and I prayed they wouldn’t wake up Mom.
“Look how much he’s leaking,” Ava whispered.
“Hell come soon,” Chloe said. “A couple of more licks and sucks.”
They positioned themselves on either side of my hips, Chloe taking the head in her mouth while Ava’s hands stroked the shaft in long, twisting strokes. I couldn’t take it. I couldn’t hold back any longer. With a deep, rumbling groan that was only half-feigned, I thrust my hips, sending my cock deep into my sister’s mouth. Thick ropes of cum shot into Chloe’s mouth, overflowing onto Ava’s hands and spattering across both their faces. My eyes rolled to the back of my skull as I felt an intense pleasure I’d never felt before. It was like one of those wet dreams … Which I knew weren’t wet dreams any longer.
Ava tried her hardest not to giggle, and Chloe asked her with her mouth full of cum. “Dooh yough warnt sohme?”
She nodded, and my sister dumped half of my load into Ava’s mouth in a sexy cum swap as my load spilled over their chests. They both swallowed.
“Come on, we must get out of here. He usually wakes up after one of his wet dreams,” Chloe said.
They backed toward the door, whispering to each other, “We have to do this again…” as they disappeared into the hallway.
I lay there in the moonlight, cum cooling on my abs, my cock still throbbing with residual pleasure. A satisfied smirk spread across my face as I stared at the ceiling.
“Next time I’m not pretending,” I whispered to the empty room, already imagining the possibilities.
The end.
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