He began to push-pull on his stalk again, groaning. His cock was so taut by this time that it was humming like a tuning fork in his fist.

Belinda's face tilted, following the movement of his cock-meat like a cobra swaying to a snake charmer's flute. Her green eyes were glowing, her lips moist and parted, the pink tip of her tongue showing.

She could feel the heat of his cock waft into her face and her cute little nose flared as she breathed in, inhaling the musky aroma of his seething cock-meat.

"Hold my balls, Sis," he rasped.

Belinda complied without hesitation, whatever inhibitions she might have had melted away in the raging inferno of her proscribed passion.

She reached out and cupped her brother's heavy cumbags, lifting them in her palm as if she were weighing their load on scales.

"Ooooh you're so full of spunk!" she moaned.

She squeezed the cumbags gently, feeling his creamy load sloshing around within.

Tommy tilted his wrist, holding his cock by the hilt and levering it down. It was too stiff to bend and his ass hiked up on the far end of his hard-on.

He tapped his cock-head against his sister's nipples, shifting from one to the other. She thrust her tits up, inviting the contact, and her glowing face tipped down as she stared at his prick.

His piss-hole was starting to bubble. Pre-cum seeped out and ran sluggishly down the slope of his cock-head, onto his throbbing shaft. Her eyes crossed as she gazed in at his slimy knob and her tongue glided slowly back and forth across her parted lips.

Belinda was panting over her brother's prick, her breath wafting over the bulging, dribbling knob as he rubbed it against her tits and nipples.

Tommy nudged his cock into her cleavage. "Oooohhh you wanna fuck my tits?" she moaned.

She released his cumbags and cupped her plump tits in her hands, lifting the mounds and deepening the smooth cleft around his cock. As she pressed her meaty tits around his cock, she rubbed her thumbs against her peaky nipples.