A secret tryst between siblings escalates into an intense, incestuous blowjob. She's hungry for his cock, eager to feel it pulse against her tongue. He feeds it to her, inch by inch, as she moans obscenely around his thickness. Her spit coats his length, making it glisten as she bobs her head, taking him deep into her throat. His grunts fill the room, spurring her on. She cups his balls, massaging them gently as she sucks him harder, faster. When he finally comes, it's with a growl, filling her mouth with his seed. She swallows greedily, licking her lips clean.