Rachel was now sucking prick so intently that she hardly heard him. She tightened her fingers around the hairy root of his cock, holding the big pisser firmly. Wetly she slurped and smacked her lips on the top third of his boner, basting it thoroughly with spit.

Rachel considered herself an expert dick sucker. Men loved to spend whole hours feasting on her giant mammaries, and fuck her pussy until she hardly had the strength to slide off the bed. But her hunger for sucking hard cocks was so great that she rarely let them have their fill of the other things they wanted to do. Whenever a man had a hard cock, Rachel automatically wanted to put it in her mouth. It was as simple as that. For that reason, she'd become as expert in sucking a cock and making it spout as any downtown whore!

Now she was especially eager to keep slurping on Hughes' throbbing cock – it had been too long since she'd satisfied her near constant appetite for swallowing hot cum. Up and down, the teen's head bobbed, her ponytail bouncing on her back, her enormous milk melons shivering in her uniform and bra as she fucked her mouth with his cock.

The prick responded by growing stiffer, until she had to stretch her lips wider to hold it all in. Still the prick-loving dental assistant worked insatiably on the big boner, until the little treatment room was filled with the slurping, smacking sounds of a torrid dick sucking in progress.

"Harder!" Hughes groaned. He clutched her head with both hands, panting as he ground his hips off the chair. "Ungghhh! Oh, shit, what a sweet little cocksucker you are! Work out on it, Rachel! Unggghhh! Jack it a little now, honey! I really need to cum pretty bad!"

Rachel obediently tightened her right hand around the base of his fuck organ, again marveling at how huge and thick it felt. Then the big titted dental assistant started pumping her fist wildly up and down his fuck tool, violently jacking the dick from it's hairy base up to her sucking lips.