"Get the underside, it's a lot more sensitive there," Sarah said, providing another tip.
After a few moments of licking his shaft up and down, Julie was anxious to put it back in her mouth. She licked slowly up the underside, reached the head, and swirled her tongue around, teasing the slit, then plunged her head back down, letting the underside slide along her tongue.
Julie bobbed her head up and down for a while, this time going deeper, stroking his cock as it slid in and out of her lips.
"Try taking it a little deeper, yes, just like that..." Sarah said as the cock disappeared, inch by inch, into the beautiful girl's mouth.
Sarah's guided Julie's hand back up to the base of Jim's prick.
"Keep stroking it as you go back and forth, keep your mouth moist--yes, just like that, and suck on it as you pull back each time--but not too hard! There you go! Good girl," she said as Julie's cheeks hollowed with her sucking effort.
"That's it, keep going--back and forth--keep your mouth moist, there you go. Keep stroking."
Sarah got up off her knees for a minute to take a drink of whisky. She looked back to see how Julie was doing. She could see that Julie was going to be a natural at this. She seemed to have pretty strong cock-sucking instincts, and needed only a little more instruction.
Sarah was also moved by how beautiful the sight of Julie sucking cock was. She was settled comfortably on her knees. Sarah looked at her well-shaped legs, her perfectly rounded ass, and smooth back and slender waist, up to her thick black hair that was swaying back and forth as she instinctively bobbed her head--gradually faster, building up tempo. The sound of her sucking and slurping filled the room.
The girl's eyes were closed in concentration, her cheek bulging out with each in-stroke, as Jim's cock pushed against the inside of her cheek, and then hollowing again with each outstroke as she continued sucking hard. She also noted that Julie had no trouble going down deep without gagging, almost to the root. This was without any training in deep throat techniques. Sarah was impressed.
Looking down at Julie's thighs, she could just see a dribble of her pussy juice running down the inside of her thigh. Sarah knew it was turning Julie on big time, just from her intense concentration and flushed face as well as her enthusiasm and erect nipples, but this was really far out!
"That's it, you are really doing good. I can really see you are a natural-born cock-sucker!" she gushed. "Now you're doing the right thing if you want him to cum, but if you want to prolong it and build him up more you need to pause a little, and lick him a little bit on the outside. There you go. Grip him fairly hard at the base to keep him from cumming too soon, but don't stroke anymore yet."
Julie complied, pausing him to lick him up and down the shaft once again.
"Okay, he's pretty close to cumming. You can taste the pre-seminal fluid coming out of the head right now," she said as Julie licked his prickhead.
Julie loved the taste, but wanted his cock between her lips again. She plunged back down with a moan, sliding the cock back into her mouth as deep as it would go, and started bobbing her head furiously back and forth, sucking hard. She moaned around her mouthful of cock, squirming with lust on her knees.
Sarah gave up on trying to get Julie to prolong it any longer.
"Okay, when he comes, you'll know it. You can either pull back and let him spray on your face, or swallow it. They love it when you swallow, but it's also fun to have it splash all over your face and tits, so it's your choice. If you swallow, pull back a little at first so you don't gag and have it go down the wrong pipe. If it's a big wad, you need to be prepared to swallow quite a bit of his cum, but try to taste it first.
Julie muffled her acknowledgement, her mouth too full of cock to reply coherently. She bobbed her head furiously back and forth, stroking the base of his cock with one hand, bracing herself against his thigh with the other.
"He's going to cum any minute!" Sarah practically yelled.
Jim was nearly delirious with ecstasy, and near the breaking point. He was sawing his stiff aching prick back and forth in Julie's lips, and his eyes were starting to roll back in his head.
"Now, ease up on your grip and stroke a couple of times as you suck him!" Sarah shouted excitedly.
As Julie eased her grip around his cock, Jim could no longer help himself. He grabbed her head with both hands and started thrusting hard into her mouth, sawing his cock in and out of her mouth. He felt himself explode after about three more pumps. It was incredible--one of the most powerful cums he had every experienced.
It was incredible for Julie as well. The minute she felt his cum hit the back of her throat she felt an orgasm explode in her as well. Amazingly, her cunt was juicing and throbbing with an orgasm--even without any direct stimulation! From that moment on, she would be a confirmed blowjob queen, and would find herself unable to resist folding to her knees at the sight of a cock.
Sarah watched in awe as Julie gulped down the jism. Julie could not help but smile and a big glob of white cum leaked out the corners of her mouth and dripped down the sides of her cheeks. He was pumping so much, she couldn't take it down fast enough. It poured over her lips and spilled out over her chin. She was finally forced to pull the head out of her mouth to keep from choking, but continued stroking Jim's prick with her hand.
Blast after blast hit her cheek with each stroke. It covered the lower part of her pretty face and dribbled down to her tits, and then off the tip of one of her nipples. She slipped his cock back into her mouth and continued her bobbing motions, squeezing his cock gently to try to milk out every last drop of his cum as she continued her sucking. She felt so dirty, but so hot, on her knees with a cock in her mouth, and cum not only filling her mouth, but all over her face and tits.
Jim was still moaning, pumping one of the biggest loads he had ever shot--all over her face and tits. Eventually he had emptied his load, but Julie stayed on his cock for a few more moments, sucking out every last drop, and licking him clean. She sighed when she finally pulled his soft cock out of her mouth. She looked up at him, cum streaking down her face and chest with a huge smile on her face.
"Wow, he exclaimed. That was one hell of a blowjob, he said as he pulled up his underwear and pants. "...one of the best I've ever had. You've certainly earned this," he said as he pulled her fake ID out of his wallet and handed it to her.
He pulled up his pants, and tucked his shirt back in.
"I've got to go--guess I'll see you later," he said as he walked out, closing the door behind him. Just like that--it was over.