He watched as Bob drilled his dick back inside Tina's pussy. Tina moaned and turned her head. Billy ducked again. If they caught him spying on them there'd be hell to pay.

"Play with my titties, honey," Tina sighed.

Bob moved his hands up to cup her boobs. Billy licked his lips. God, he'd love to suck one of Tina's tits into his mouth for a while. Just a few minutes on one of her juicy-looking nipples would be heaven. A guy could lose his load just thinking about it.

Suddenly Bob began slamming in and out of Tina's twat. Billy bit his lip and watched Bob's prick plunge in and out of the redhead's snatch. Tina yelled that she was coming and sure enough Billy could see her entire body shaking.

"You're sucking the come right out of my balls!" Bob grunted.

"Don't stop!"

"You want more?"

"More! Yes, more!"

"Like this?"

"Yes!"

Outside, Billy's blood raced. Would a girl ever talk like that to him? Jesus! Did they all get so excited? The few girls he'd fucked made a lot of noise, sighing and moaning, but nothing like this. Aunt Tina was sure a hot cunt.

"I'm almost there!" Bob said through clenched teeth.

"Give it to me!"

"Take it!"

Throwing his head back like a stallion, he roared and slammed his cock unmercifully in and out of Tina's cunt.

"Shit!" Billy muttered as he watched his uncle's cock explode inside Tina's pussy.

He bent over to pick up the plate of cookies. He started to leave, but then something caught his eye. He gazed open-mouthed at his pretty young aunt. Tina was clutching Bob's softened cock. Bob said something Billy couldn't hear, but suddenly Tina was hunched down on the bed with Bob's cock in her mouth.

When she started sucking Billy moaned. Bob moved his hips and forced Tina to suck his balls too. Her face was almost hidden by Bob's prick and nuts. Billy had never seen anything like it in his life. He'd never even imagined it. Shit, there was so much for a guy to learn!