Melanie lifted her head slowly, letting the prick slide several inches out of her mouth, and gulped down a lungful of air before she forced her head all the way down on his cock again. She began to rhythmically bob her head up and down, sucking and slurping loudly, swallowing each time the dick slid into her throat. Quickly, her muscles relaxed and a delicious warmth rushed through her face. It was an euphoric feeling to have her mouth and throat stuffed again and again with her brother's hard manmeat, and she lashed her tongue vibrantly around the pulsating pole as it slid in and out of her mouth.
"Suck it, baby, suck it!" Jarvis roared, beginning to buck his hips violently.
He clutched her head in a viselike grip and slammed her face down on his loins, beginning to stroke into her throat deeply.
Melanie's senses whirled. He wasn't being gentle anymore. His cock slammed into her throat brutally, and his fingers dug into her head painfully. But somehow, this increased her excitement incredibly. She gave muffled mewls and murmurs of pleasure, her tongue flickering to and fro rapidly, her lips straining as she sucked hard at the piston-like lance that pounded into her mouth.
"Awww, shit, I'm gonna cu-u-u-um!" Jarvis bellowed suddenly, ramming his hips upward hard and skewering his sister's throat with his barbed javelin.
Melanie's eyes bulged as he thrust all the way into her aching gullet. She felt the heated sides of his dick expand, and then, a hot blast of searing come jetted directly into her stomach from his spasming cock.