His Step Sister, Julia

"Will, come on, mom wants you to get some breakfast," William's step-sister said while promptly entering his room, looking down at her phone.

"Julia!" William exclaimed while doing his best to cover his stiff prick with his hands, "Get the fuck out!"

Julia raised her eyes from her phone, and they instantly went wide, "Oh my god...are you jerking off?" She blankly asked in response, her eyes not moving away from William's hands and her feet staying planted in place.

William's eyes were wide, and he didn't even know what to say to his older sibling. Julia was a tall, full figured, redhead girl. Her father married his mother nearly ten years ago when William was just around eleven and Julia was thirteen. The two got along decently enough but they never really ran in the same circles. Julia was always hung out with popular kids, and William had his more reserved friends, meaning the two never talked without being in their house.

"J-Julia, get out," William stammered back as her face started to turn red,

"Holy shit you are!" Julia nearly squealed back, hopping up and down excitedly, her C-Cup breasts mesmerizingly jiggling and shaking for William. William jaw dropped slightly and his head tilted in confusion, "I knew it! I knew I'd come in here one day and catch you stroking your cock!"

"Ssh," William immediately shushed, "My mom could fucking hear you, and again, get the fuck out." He explained with a hard glare,

Julia glanced back nibbling on the inside of her pouty lips, "Um...no..." She slowly replied before smiling wide and shutting the door behind her,

"J-Julia...what are you doing?" William stammered as he noticed a slightly smoldering look inside his step-sisters emerald green eyes,

Julia silently sauntered over to Williams bed, reaching the end before crawling up onto it, her body inching it's way up William's legs. "Let me take a look, little bro," She softly said while laying herself down flat, her chin resting on her hands that laid flat on the bed below her,

"Show you?!" William nearly shouted back, "You're my fucking sister,"

"Step-sister," Julia corrected with a small giggle and grin, "Meaning not really related, meaning...allowed...to...see...your...cock," Julia slowly finished as her hands moved, snaking up to William's cupped hands, gently pulling a finger up and off his shaft with each word.

William's hands eventually were moved away, and he was merely laying back on his bed, panting hard as his heart pounded wildly. His stiff cock stood straight up, dividing his gorgeous sister's face, the redhead merely looking at it in awe. The only thing that William heard was a gasping laugh before her soft hands wrapped around his shaft, "Wow Will, this is fucking nice," She remarked while lightly jerking his shaft,

"Thanks...um, why are you doing this?" William asked back while awkwardly crossing his arms, unsure what to even do with his hands now, "My mother or your father could catch us you know. And again, we're brother and sister,"

"Step-siblings," Julia corrected again, "And I was just really, really curious," She tacked on in response,

"So then go," William replied before pausing, his mind replaying his dreams phrase once again, "O-Or, help me out."

"Help you out?" Julia asked back with a sly smile, "Like, how?"

"Jerk me off," William replied, putting everything out on the table. Though internally panicking for putting faith in a fucking dream!

Julia hummed in response, "Tell you what, I'll make you cum if you promise to drive me to the mall today. My car is almost out of gas, and I don't feel like spending money on more,"

"O-Okay," William replied in complete shock, her cock pulsing hard in response,

Julia let out a little giggle, "This is gonna be so easy, you're not gonna last long, I can feel it," William let out a small grunt in response as Julia immediately started to stroke his shaft. His heart continued to pound rapidly, and he couldn't stop from looking over at his door, fearing one of their parents walking in. Julia, on the other hand, was lightly humming to herself, her honey-like voice filling the teen's ears while her two soft hands clamped around his shaft, one on his length and the other over his head, both pumping him masterfully.

"Oh god," William began to moan out, Julia's small thumb pushing at the bottom of his helmet before rubbing his precum all around, a constant flow of it leaving his tip. "You need to hurry; mom might come looking for us,"

"No, you need to hurry," Julia giggled back, "Just spray your load already,"

"W-working on it," William mumbled, his eyes closing while his hips began to lightly buck up, "Fuck Julia,"

"C'mon, cum bro," Julia whispered as her second hand moved from his shaft to his balls, playfully squeezing them, "Oooooh, they're so heavy, so fucking full," She remarked making William groan, "You're gonna cum a lot aren't you?"

"Julia...oh god, Jules," William almost whimpered as he felt a quick flick of her tongue on his tip. Then in a moment, his cock erupted in his sister's hand. Julia let out a shocked laugh as a massive spurt flew out, flying high into the air before landing up her face and into her hair, "Fuuuuuck," William moaned as another spurt quickly followed splattering all over his stomach,

"Jesus Will! Holy fucking shit that's a lot!" Julia exclaimed while rapidly pumping his cock, "Get it all out, shit, you need to be fucking drained for real," William went completely silent, unable to even take in a breath as his cock forced another three shots out, before a thick oozing trail rolled down his head and over Julia's hand. "Fuck me," Julia whispered before laughing once again, her face a mess and her hand nearly coated solid white, "Damn, Will, I didn't think I'd make you cum that much,"

"H-Holy, s-shit," William weakly stammered back while Julia promptly moved off his bed, walking over towards his bathroom, "Thanks Jules,"

"I want to be at the mall by twelve!" Julia called back while shutting the door to clean up.