"I want you to suck my cock now," he said tersely. "Unless you want me to yell for Dad."

Debby said nothing. Her nipples ached with horniness; her pussy was a steaming, wet mess. She was all too eager to take her brother's prick deep into her mouth.

She sat on the edge of the mattress before him, her face directly before the jutting, blue-veined shaft. Debby wrapped her hand around the base of his click and squeezed it hard. She opened her mouth and gurgled as she took the mushroom-shaped head between her lips.

"Suck it," Dave murmured anxiously. "I mean it, Sis, I got you where I want you. Suck my dick hard!"

Debby sucked. Her hand clenched his pulsing prick and stroked it rhythmically, drawing the loose flesh up and down. Again and again she curled her tongue around his spongy prick head, kissing and licking it, darting it like an eel into his cum slit.

Dave moaned and grabbed her shoulders. Helplessly he rocked his hips, fucking his long cock down her throat.

"Ummffff," Debby moaned. More gurgling sounds came from her throat as she sucked his prick. Her mouth filled with a mixture of saliva and his dripping jism. "Oh Dave… ummfff, unnnmmgg."

"Play with my balls," Dave demanded. "Goddamn, they're full of cum. They really hurt!"

Debby dropped her free hand between her brother's thighs. Tenderly she fondled the hairy sac of his gorged nuts, rolling the balls between her fingers, as if loosening the tremendous load of cream they carried.

She was getting very horny now, as turned on as she'd been since her first night with Robbie. Dave's sexual experience was amazing. He couldn't have much of it, but he seemed to know exactly what he was doing. And there was something about sucking off her own brother that turned Debby on.