Tony watched his mother's lips and eyes open wide with amazement. Then he saw what she was staring at. The towel had slid completely off of his hips, actually pushed aside by the sudden, dramatic stiffening of his extremely large cock. Sylvia stared in wonder at the gigantically long, fat hard-on now standing stiffly out of her son's cock-fur, his fuck-shaft twitching obscenely over his belly, his cock-knob red and bloated with cum. Looking at his mother's naked body had given her son the biggest hard-on she'd ever seen in her life.

"Good Lord, Tony!" Sylvia whispered breathlessly. "It's simply huge!"

Moaning with embarrassment, Tony tried to cover his huge cock with his hands and started to roll onto his stomach. But he couldn't. He gasped as the pain shot through his spine again. All he could do was lie helplessly on his back, looking guiltily at his mother as his mammoth cock continued to pulse obscenely in front of her.

"Oh, shit, this is so embarrassing!" he mumbled. "I'm really sorry, Mom."

"You… you don't have to be embarrassed."

But Sylvia hardly heard her own words. She tried to stop staring at his huge cock, but she couldn't seem to tear her eyes away, and soon she felt herself trembling with an irresistible, shameful lust. Lord, what a big cock, she thought, over and over… my son has the biggest cock I've ever seen…

"Mom, I'm really sorry about this," Tony mumbled. Guiltily he slid his hands back to his sides, knowing that he couldn't possibly conceal his hard-on. "I guess you better go now."

Sylvia hardly heard him.

"Look at how stiff it is, Tony," she whispered breathlessly. "It's throbbing so ltd. Did looking at my body do that to you?"

"I… I guess," Tony admitted.

"You'll have to jack off, won't you?" Sylvia murmured. "You'll never be able to get to sleep when your cock's this hard. Do you think you'll be able to?"