"Okay, Robbie," she whispered. "Go ahead and put it in."

Robbie unzipped his pants and pulled them down to his knees. He grabbed the Trojan pack and tore it open, withdrawing the small, balled sheath of rubber. Before Debby's eyes he fit it over the knob of his throbbing, jerking, incredibly stiff dick. Then he rolled it down, encasing his hard cock completely.

"Stick it in, little brother," Steve said callously. "Shit, can't you see how wet her hole is? She really needs a good fucking pretty bad."

Debby blushed at Steve's obscene words, but she was too horny to object out loud. Besides, they couldn't have been any more true. The sight of Robbie's naked, stiff prick had made her even hotter than before. Her pussy was so wet for fucking now; it felt as if her cunt juices were dripping into the sand.

Robbie climbed on top of her. He positioned his prick between her nakedly spread thighs, groaning as the spongy knob of his dick pressed between the pouting lips of her cunt. Then he bumped his ass forwards, gasping as he slipped the whole length of his pulsing dick into the buttery warmth of Debby's fuck hole.

Then he started fucking her. His lean, slim hips humped, between bet legs, hammering the length of his blue-veined cock deeper and deeper into her pussy tunnel. Robbie dropped his head to her jiggling tits and began sucking her nipple hard, nursing on it like an infant with his mother.

He's fucking me now, Debby thought hornily. Oh God, yes, he's doing it, he's fucking me hard! I can feel his dick… it's so big and stiff… it's all the way in my pussy fuck me hard, Robbie… really hard.

"Fuck meeee," Debby squealed. She hurled her long legs across his back and pumped her ass off the towel, grunting as she thrust up her cunt to meet his strokes. "Harder, Robbie, I want to cum! Unggghhh! Yes, Robbie, yesssss!"