The prick was really throbbing uncontrollably now, signaling that her hung patient would be popping his rocks at any moment. Rachel thrust her left hand between his legs without being asked, touching his ball bag. The wrinkled sac felt as oversized as the rest of his crotch equipment, two giant globes that were obviously packed to bursting with spunk.
Rachel gurgled, mewling the sound around the flared cockhead she was sucking so hard. She kept jacking his meat furiously, and now fondled his nut sac at the same time.
Hughes moaned, clutching her head, nearly choking her as he jammed the cocklance a little farther down her gullet. Seconds later, the mammoth fuck organ was spitting out cum.
The white stuff spewed out in great, milky gobs, jetting rhythmically out of his dick head, spurting and splattering on the roof of the teenagers mouth. Rachel gurgled as she tried to suck all of the prick-juice down, clinging to the unloading cock more insatiably than ever. For nearly a minute straight the busty brunette sucked prick and swallowed cum, refusing to let the hard prick slide out of her wet mouth until she'd lapped the last traces of cream from his piss-slit.
"Whew! Honey, I don't mind telling you! You really know how to suck!" Hughes looked at her in happy amazement as she sat back on her heels, still kneeling on the foot stool. Rachel blushed with shame as she licked the traces of cock-juice from the corners of her mouth.
"I… I guess I do at that," Rachel said embarrassedly.
And the truth was that she still felt very, very, horny. Hughes still had a very stiff cock, and, as she watched the spit-dripping boner continue to jerk and throb, Rachel knew it would stay plenty stiff enough to be rammed in her cunt.
She didn't clearly remember when Dr. Hankison had said he'd be coming back, and she was now much too horny to care. Rachel rose dazedly to her feet, nearly knocking over the tray of dental tools. She kept staring at the throbbing fuck organ as her hands fluttered down the front of her starched white uniform.