Tom Allison - Dental assistant on top

"Golly, Mr. Grant, you're practically slobbering all over 'em!" squealed twenty-one-year old Karen Johnson. "Honestly, I don't think I've ever met a man who was so crazy about my big titties!"

Bill Grant was too distracted to answer. The handsome, forty-two-year-old instructor was seated behind his desk in the now-deserted classroom, on the grounds of the little known Rickman-Hymer School of Dental Studies.

Karen was standing beside him, her blouse unbuttoned and her double D-cup bra unsnapped to free her enormous tits from confinement. Dazedly she looked down at her teacher as he slurped feverishly on her giant tits, his mouth ovalled around one wide, coral pink nipple, puckering his cheeks as he hungrily slurped the fat, rubbery tit between his lips.

Karen grimaced, suppressing a mewl of pain as her horny instructor grazed his teeth against her sensitive nipple flesh. But she decided not to say anything, and instead stroked Mr. Grant's hair as he kept sucking and slurping feverishly on her jugs. After all, she told herself, this was going to be his last sucking session with her big titties. And he certainly deserved the reward of being able to nurse on her giant tits after giving her so much extra-curricular help in getting through the Rickman-Hymer studies.

Thanks to her own hard work and Mr. Grant's tutelage, Karen had just earned her diploma as a certified dental assistant. This, she felt, was a great accomplishment, and she couldn't wait to start looking for her first job. It wouldn't come a minute too soon, when she found one. Karen was now sharing a tiny apartment with her kid brother Jimmy, and there was a real danger that they'd run out of money before she could find a steady job.

Still, Karen was determined to succeed. She felt grateful for the help Mr. Grant had given her, and wasn't bothered by his request to nurse on her huge tits in return for help with her schoolwork. Deep down inside, Karen had never been too confident of her academic abilities. What she always had been confident of, however, was the powerful allure of her body.

Karen knew she was unusually pretty, with her long, wavy brown hair, her big blue eyes and her natural expression of girlish, pouty-lipped innocence. For better and worse, however, men were usually too busy ogling her tits to even notice what she was like from the neck up.

Sometimes they stared at her legs, which were long, creamy-white, and endowed with just the right curviness. Sometimes they stared at her cute, round little ass, which pooched out in such a way that few men could resist fondling or pinching it. Karen's waist was very slim and girlish, and she had an overall delicate, feminine bone structure, and sometimes, it was true, men stared at that part of her body too.

But what they really stared at was her tits. In appraising her body to herself, Karen knew there was no point in beating around the bush: her tits were simply enormous, especially in contrast to her slim hips and narrow torso. And it wasn't just that her jugs were big, either; a lot of women had big tits. It was that they were so round and firm, so spongy and creamy-white and thoroughly suckable in general.

Karen also had big, wide pink nipples, with rubbery teats that stiffened to nearly three-quarters of an inch in length at the slightest stimulation. The sight of her giant, fat-nippled tits was so intensely arousing to the opposite sex that her lovers often spent whole hours nursing on her huge milkers.

Karen had gotten used to this, and didn't really mind that men like Mr. Grant couldn't help being so horny for her oversized sucklers. The only trouble was, letting him suck her whoppers like this was making her very, very horny.

Her tits were as sensitive as they were big, and she sometimes thought that the nerve endings in her coral pink nipples, especially, had a pipeline straight into her pussy. Karen had been letting Mr. Grant slurp on her tits since her first week on the campus, and resisting his further advances had been a real strain on her.

She knew he wanted to fuck her too; every time he started slurping on her tits, his cock got all stiff and achey-looking in his pants. Karen didn't think it was right to let a forty-two-year old man fuck her cunt, but the tit sucking made her so horny that it had been hard to resist him. Each time a lengthy mammary nursing session had been concluded, she'd had to spend several hours with her finger in her pussy before being able to get to sleep.

And today she felt hornier than ever. Standing beside his desk with her blouse open and her bra unsnapped, Karen sighed as she felt her fleecy-haired pussy juicing and throbbing rhythmically in her panties. Oooww, getting her whoppers sucked always made her so horny! Now she really felt like fucking Mr. Grant too, not just letting him suckle her big baby feeders!

"Mr. Grant, I… I think you maybe ought to stop now," Karen whimpered. "You've been sucking on 'em for a pretty long time. I… well, you're kind of making me lose control of myself!"

Grant didn't say anything. He was too busy gorging himself on her fat, rubbery tit-tip. He opened his mouth wider, sucking the big jug farther into his mouth. Lewdly he fondled her other breast with his free hand, fanning his finger across the nipple.

"Unngggh! Oh, Mr. Grant!" The innocent, big-titted twenty-one-year-old grimaced and squirmed in front of him, feeling her pussy getting hotter and juicier. "Mr. Grant, this isn't fair. My cunt's getting all horny! Oh, Mr. Grant, please stop now! I'm gonna get so horny that I'll want you to fuck me!"

This, of course, encouraged her teacher to nurse on her giant tits more eagerly than ever. He switched tits, leaving the nipple he'd just sucked very red and stiffly crinkled, glistening with spit. Karen abruptly lost all control over herself as he sucked the second goose bumped tit cap into his mouth, slurping her big boob harder than ever.

"Unngggh! Oh, fuck, Mr. Grant! That's enough! You win!"

Karen abruptly pulled away from him, surprising her teacher with her energy as she forced him to withdraw her big nipples from his mouth. For a moment, Mr. Grant obviously thought the sex session was concluded. Then Karen surprised him by kneeling hastily in front of him, her huge tits jiggling as she thrust her hands between her legs.

"Take your pants down, Mr. Grant! Oh, gosh, I'm just so horny, I can't help myself at all! I want to see your big boner, Mr. Grant! I want to suck your prick!"

"Shit, yes!" Grant grinned.

Smiling happily at the serendipitous good fortune, her teacher unbuckled his belt and raised his hips, rapidly tugging his slacks down to his ankles and stepping out of them.

He wore no underwear. The innocent young brunette gasped, her eyes widening and her pouty lips parting in shock and lust. Why, her forty-two-year-old teacher had a simply enormous fuck organ! The long, meaty root was rising out of his cock fur like a flesh billy club, the flared, rosy knob twitching over his navel, obviously completely bloated with cum and blood.

"Oh, Mr. Grant! You've really got a big one!"

Karen's hand trembled as she slid it up his thigh, wrapping her fingers tightly around the blood-beating root of his cock. Slowly she jacked his big prick up and down, staring at the spongy head, watching the piss-hole open and spit out little droplets of jizz. Her pussy was really getting wet now, throbbing and juicing so heavily that it felt all hot and sticky under her panties. The busty young girl lowered her head, planting a wet, horny kiss on the tip of his prick. Then she gradually let her lips part, shutting her eyes, hungrily sliding her ovalled lips onto the tasty, oozing stiffness of his fuck meat.

A wanton, enveloping feeling of need coursed through Karen's body as she compressed her lips around the cock, puckering her cheeks as she started to suck on it. This, she knew, was another one of her weaknesses. For as long as she could remember, she'd had an extremely strong attraction to the erect male boner. In her younger years, her dates had found that one of the best ways to get into her panties was by simply showing their cocks to her. Just looking at a hard, throbbing prick could make Karen so horny that she'd give head for hours, even on a first date.