"You mean..." She leaned in and swiped her tongue across the head.
Trevor pushed all the air out his lungs as if he had been punched in the gut. "Aaaa, Yes, Slower."
She reached her tongue out again and slowly licked across his head. She looked up at his face and saw that he liked it. She licked again, this time going around the head, all around it and over it. He groaned. Then she licked down the shaft, mostly with the tip of her tongue, then with the flat of it. The more she licked the more he moaned, so she kept it up.
She stopped to laugh. "Your dick is throbbing. And your balls are moving all on their own."
"Oh, yes." he whispered.
She squeezed his balls some more, then placed her lips over the head of his cock.
"AAAAaaaaaaa!" Trevor moaned loudly.
Sarah smiled, taking her lips off his erection. But she didn't stop. She brought his dick over toward her mouth and let it slide in. Several inches went in, then back out. Trevor could hardly breath at this point, and Sarah knew it. She did it again, this time leaving it inside for a moment before bringing it back out. She repeated it again, now also squeezing the shaft and pulling up on it as far as her mouth was down. She pumped it three times before pulling her mouth off, and Trevor was moaning, thrashing his head to the side, hardly able to contain himself.
When she did this again, Trevor was able to say, "Suck it."
She thought she understood, She had never done this before, but naturally a lot her friends had, and they talked about it. So with her lips around his dick and several inches inside her mouth, she sucked on the shaft, then continued as she pulled her mouth off it.
"Ungh," Trevor moaned. "God. Good"
She did it again, and again, each time getting a good response. She included a little ball squeeze which always got a reaction, and she went deeper onto his shaft. When her mouth needed a rest she would pump the shaft harder, all the way up and down, until she was ready to suck it back in. She loved the way it felt. The power she was holding, the sheer sexiness of the act. She liked the way her tongue would push against the head of his cock, and she would let it rub it while she sucked.
He was right - it was turning a deeper purple. She saw while giving her mouth a rest that the head was really changing into a much darker color. She didn't take time to ask, as he said that it would happen. She supposed that was what he meant. She went right back to sucking, pumping, licking his head, and squeezing his balls. She was having fun!
"I'm going to shoot!" he suddenly yelled. She hadn't thought of that. She had been lost in her own pleasures and didn't realize he was so close to cumming. She was surprised, a little stunned, and very slow to react. She just kept up her pumping and sucking while she tried to sort out a coherent thought.
Then WHAM! She felt his penis throb and explode, what must be his semen hitting the bak of her throat. Startled, she held still, not yet able to react. Another spurt struck her throat, and she started gagging as she was unable to breathe. She coughed up his semen as another load spurted into her throat. She finally withdrew her mouth from his dick, coughing and choking and trying to get her breath. Still, she managed to watch the rest of his eruptions, marveling at the little spurts of cum being pushed out of the end of his dick. She pumped his shaft a few more times, each bringing a little more cum oozing out the tip, until there seemed to be none left. Trevor shook a couple times, shoving his hips up, and she was able to slowly draw a little more cum out of him before he took her hand and moved it off his cock.
Sarah grabbed his shirt again and wiped off her face and mouth, trying to get his cum out of her mouth as well. Trevor was still incoherent, making only a few moaning sounds, when she started wiping him up as well. She could now stroke his dick a little, and marveled again at it, this time as it shrunk from the hard monster shaft it had been to a soft, more innocent looking penis.
"Oh, Baby, you liked that!" she stated.