He gives her a treat

Ben grinned wickedly and put his hand in Izzy's damp hair, pushing her to her knees. She eagerly obliged, eyes locked on his waist. He took his other hand down from the doorframe, and slid it into his towel, fiddling with himself. The hand emerged a moment later, a web of glossy precum stretching between his fingers.

“Is this what you want, little slut?”, he teased, deliberately holding those fingers out of her reach. Izzy shuddered, and a ****, keening whine escaped her throat. Her nose shook with cute little sniffs, hoping to get a whiff of the precum’s stench, but only a little filtered its way down to her.

“Come on!”, she whimpered. “You know the answer’s yes! Don’t make me jump through hoops!”

Ben raised an eyebrow and considered. “Weeellll... I suppose I can be generous, since I’m not going to see you again for a while.”

Slowly, tantalizingly, he moved the sticky fingers down towards Izzy. The pungent musk of precum got stronger, making her swollen pussy drip. Panting with arousal, she fidgeted, her hands on her lap making tight fists. She knew what Ben was like; if she was too forward, he would go back to taunting her.

His fingers made contact, brushing her cheek right beside the corner of her mouth with his cockslime. Izzy felt its heat and its slipperiness, smelled its odor, and it all became too much. She let out a strangled gasp as her teenage cunt started to spasm, gushing juices into a puddle between her knees; being touched by her older brother’s precum had made her orgasm.

Ben laughed—mocking, but not cruel. He gave Izzy no chance to recover, though. He loosened his towel, letting it fall into a pile to match Izzy’s, which was now slowly soaking up her squirt. His cock—now mostly hard—flopped out, a stream of precum drooling slowly but continuously from the tip. He gripped it at the base, lifted it, and placed it right on Izzy’s head, giving her a faceful of incestuous brother meat and leave her nose less than a centimeter's space from his fat sweaty balls. Izzy took an excited breath in, letting her senses be overwhelmed by the smell of his nutsack. She could feel precum oozing onto her forehead, and her runny slit started to clench, already preparing to cum again. Her eyes flashed, pupils practically heart-shaped.

Still gripping it at the base, Ben started to slowly drag his drooling cock around Izzy’s face, using the head like a brush to paint her face with his copious pre-load. Losing her cool by the second, she sent her shaking hands down to grasp at her crotch like she could physically hold back her rapidly nearing second orgasm.

“When you find some poor guy to beg for your fix in Kingston, just remember that it’s your brother’s cum you really need…”, Ben taunted. He punctuated his point by dragging his slimy cockhead right onto Izzy’s lips—eliciting an overwhelmed and overexcited whimper. He pushed the head just barely past her lips, just enough to get his urethra clear of them, then flexed his pelvic muscles. His cock pulsed, and a gooey glob of precum squirted into Izzy’s mouth, striking her soft palette. The bitter, pungent, perfect flavor coated her tongue, and her cunt exploded. She squealed and moaned like the useless slut she was. Her lips clamped down around Ben’s cockhead. Her entire body convulsed, undulating with pleasure, and her overeager vagina gushed its juices all over her hands. Unable to stop herself, her fingers started desperately—though unnecessarily—toying with her own struggling cunt.

Ben started to stroke the base of his cock, and used a hand gripping Izzy’s hair to lightly push her lips back and forth over the head of his meat, getting ready for his own orgasm. Ben had no use for ‘stamina’; his best quality was his cum, and he felt no reason to try and hold it back. It’s not like the people he fucked didn’t cum first anyway. Izzy knew what was coming, and brought up one pussy-juice-covered hand to help him along, stroking her tiny fingers over his cock. Ben grunted and gripped her punk haircut, holding her hungry little mouth in place, then unleashed his orgasm into her mouth.

His cock erupted, a flood of musky semen covering her tongue completely with the first spurt. From there it just kept coming, his cock pulsing and twitching as it pumped rope after rope of slimy seed into Izzy’s mouth. Her hips thrashed and bucked, her little teen cunt trying to clamp around a cock that wasn’t there. The taste and stink of cum overwhelmed her poor little brain, making her dizzy and delirious with arousal.

After flooding his sister’s mouth with enough sperm to knock up a roomful of women, Ben pulled his cock back from her lips. It trailed sticky ropes of semen and saliva, which broke and dropped down onto her chin and little tits. Furiously jerking his cock, he spewed another half-dozen huge ropes of cum onto her face, painting her impish features off-white.

It was all too much for Izzy, as Ben knew it would be, and she collapsed to the floor, trembling her way through another orgasm. Ben chuckled, and said, “See you at Thanksgiving…”, before pushing Izzy’s tiny shaking body out of the way with his foot, stepping into the bathroom, and shutting the door.

After swallowing her mouthful, desperately shovelling the facial into her mouth, and swallowing that too, Izzy finally managed to recover her senses. By then Ben was showering, the door firmly locked behind him.

Asshole, Izzy thought fondly, before staggering her way downstairs to the smaller ground floor bathroom where she could wash her face.