I have to give due credit to my editor Cheer_Smartie526, she made the story much better. This is the second story with these characters, reading the first one isn't really needed, the plot is not very complicated.
*
Carl knocked twice on the door of Daniel's house, or more specifically his parent's house. It had been two weeks since Daniel's sister had fucked his brains out and he still felt a little aroused just being in the house, even if Carrie was away at college. He desperately wanted to tell someone that he was not a virgin anymore. Normally he would confide in his best friend. The problem was that Daniel was Carl's best friend and telling him 'Dude, I fucked your sister' did not seem like a very good idea.
Carrie heard the knock at the door and got up to answer it. She and Daniel were the only ones home and he was in the shower. Normally she would be in her dorm room, but her room-mate had asked for exclusive use of the room for the weekend to entertain her new boyfriend. Carrie had wanted to stay and watch the fireworks, but Chloe did not seem like the exhibitionist type. So she avoided the awkward conversation and came home for some free meals and a laundry room where she did not need to worry about someone stealing her clothes. She also came home on the off chance she could hook up with her brother's geeky but well hung friend. He had acquitted himself quite well a few weeks earlier and she was curious what he would be like now that he was no longer a virgin. Just thinking about him caused her nipples to poke through the thin material of her T shirt. Without the insulating layer of a bra they were quite visible. She considered letting whoever was at the door wait until Daniel could answer it, as she was wearing only a large T shirt and a thong.
"Fuck it," she mutter to herself, and looked out the window to see who it was. Her lips curled into a grin when she saw Carl. She opened the door just enough for Carl to see her face.
"C...C...Carrie," Carl stuttered, suddenly nervous. His cock began to swell at the sight of her.
"Hi Carl, I've been thinking of you," Carrie replied, opening the door the rest of the way, knowing that Carl could see her swollen nipples. She noticed a growing bulge in his pants.
"You're here," Carl said, stating the obvious.
"And so are you," She responded, and then flashed him a smile and opened the door. She noticed he was staring at her tits.
"You did this," she said, circling her nipple with her finger, "do you have that effect on any of the girls at school yet? I'm sure there are a few that are interested."
Carl looked at the ground, "No, nobody's interested."
"I bet they would be if they knew what I know," Carrie replied, grabbing Carl by the wrist and pulling him into the house. She did not let go once he was inside, rather she continued to drag him through the house and into the downstairs bathroom.
"What are you doing?" Carl asked.
"Well," Carrie said, "I'm going to do something about *that*," blatantly staring at the large bulge in Carl's pants. I don't want my brother to think you are gay for him, not that there is anything wrong with that."
"But he's upstairs," Carl protested, his head reeling with the thought of fucking Carrie again.
"He is in the shower, probably doing exactly what I want you to do," Carrie replied, pressing her hand against his erection.
"What do you want?" Carl asked.
"I want to watch you jack off," Carrie answered. It would not be as hot as watching her roommate getting banged, but it would satisfy her voyeuristic yearning. She thought about just fucking Carl, but she knew once she started she would not want to stop, regardless of when her brother finished his shower. She could walk away from Carl's show if the situation required it.
Carl looked down at the floor, "I'm not sure I can do that. It's embarrassing."
"Let me sweeten the deal then," Carrie said, peeling off her T shirt, "I'm going to watch you stroke your big hard cock." She licked her lips and smiled seductively. "Tell me when you are going to come and I will finish you off. You get to choose between shooting your cum into my mouth, coming on my face or spraying it all over my tits. Are you still too embarrassed to do it?"
"Uh, I think I can do that," Carl replied, looking at Carrie clad only in a thong. His cock felt like it was about to rip through his pants. He was basically trapped; he knew his erection would not go away until he came or Carrie left the house.
"But wait, there's more," Carrie said, "There is a price to pay. If you come in my mouth then you have to kiss me. If you come on my tits you have to lick it off."
"What if I come on your face," Carl asked, his face turning red. He could not believe he said those words to his best friend's sister.
"If you come on my face you have to wipe it off and feed it to me," Carrie replied, "and then kiss me." She honestly hoped he chose her breasts. It was not that she minded having his cum in her mouth, but watching him lick it off her tits would be much hotter.
Carl took a deep breath and looked at Carrie. He imagined her face with his cum dripping down her cheeks. He thought about having her lips wrapped around his fingers as her tongue lick them clean of the thick liquid. Then he thought of her mouth against his and her tongue wrestling with his own. Finally he thought of her breasts. He first imagined the way they would look with pearly drops of cum splattered all over them. Then he thought of the way Carrie's tits would feel in his mouth. Carl made his decision.
"I want to..." he started to say before Carrie interrupted him.
"Don't tell me yet, just let me see you stroking that big hard cock of yours," she purred, and then she took his hand and spit into it. "That's not quite enough," she said, and then she engulfed his cock with her mouth. When she pulled her head back his cock emerged wet and slippery. Carrie guided Carl's hand into position.
The first couple of strokes were awkward. Carl could not believe he was masturbating in front of someone, let alone Carrie. Her eyes were glued to the sight of his hand sliding up and down the shaft of his erection. The feeling of embarrassment faded away as he became more and more aroused. Carried ran her tongue over her lips and then opened her mouth wide.
"Do you want to shoot your cum down my throat? Do you want to make me swallow it? Would that turn you on? Do you want me to be a nasty little cum guzzler?" she asked.
Carl could only moan in response.
"Maybe you want to come on my face. I can be your little porn princess. After you give me your money shot you can scoop it up and feed it to me. I'd gobble it up a like a good little slut."
Carl moaned again. He could already feel his orgasm building. Just the sight of Carrie topless was a turn on; her dirty talk was pushing him towards climax at an astounding rate of speed. He felt Carrie grab his other hand and spit on it, then wrap it around his cock.