An Awesome Birthday PresentbyCphucker©
Short, but sweet hopefully...
Guys, get your cocks out. Girls, spread your legs. As always, let me know if you cum to this.
"Tell me why we're doing this again..." my sister Bree said, with her ass sticking up in the air.
She was on her bed facing away from her brother Kevin, wearing her favorite pajama shirt and a cute striped pair of panties which were presently pulled down to her knees, leaving her girl parts completely exposed. He was standing behind her, with just his boxers on. However, the fly was wide open and his fully erect penis was sticking out in plain sight.
He raised one knee onto the bed to being himself closer to her. He had a bottle of lube in his hand, and Bree knew exactly what he was going to do with it. Maybe she was having second thoughts.
He just smiled. "I told you yesterday, this is your eighteenth birthday present."
"You mean, you're eighteenth birthday present. I think it's way more for you than it is for me."
"Well then, it's both of our present." It was both of their eighteenth birthdays today, since they were twins. "But you're the one who asked about it."
She wiggled her ass out of nervousness. "Yeah, well...I am curious."
He squeezed some lube into his hand and rubbed it onto his penis. After it was coated liberally, he squeezed some onto Bree's ass, making her shiver.
"Ooh, cold!" She didn't move away though. She never backed down once she made up her mind.
He used two fingers to smear the lube into her ass crack and she seemed to push back against him when he touched her tight pucker. He was careful to just rub the outside for a good minute before entering her, getting her nice and relaxed. Then he pushed a finger into her and stopped at the second knuckle.
"How you doing so far?" he asked.
Bree looked back at him, flipping her cute red hair away from her face. "Fine! No problem."
He laughed, knowing she was probably just pretending to be nonchalant. But as long as it didn't hurt...
Kevin and Bree had been sexually open with each other their entire lives. No one knew this, of course. It was one of those secrets that twins kept to themselves, and would take to the grave. They were each others' best friend, and knew each other intimately. Bree knew about his first erection, his first wet dream, his discovery of masturbation which directly affected her discovery of it as well, and every detail of him. Kevin in turn knew everything about her, even intimate details that perhaps a typical husband wouldn't necessarily know about his wife. In many respects, except for the actual physical intercourse, they were lovers.
Once puberty had hit, Kevin first and Bree a year later, their childish nature of sharing everything and keeping secrets from other people blossomed into sexual discovery. Mutual nudity had been commonplace between them, but when Kevin began to get erections Bree wasn't about to let it go without expressing her intense curiosity. This led to his first orgasm in front of her.
The shame or embarrassment he might have felt in front of others never even crossed his mind when he was with her. From then on, he would frequently masturbate both in private and in her company. It didn't take long before she began having an active part, and soon having orgasms was just another activity they could do together, like playing or watching TV. It wasn't actual sex, and there was no danger as long as he kept his penis out of her.
But now, as he was massaging the inside of her asshole with two fingers, Kevin was about to change all of that. Bree had been talking for some time about introducing anal sex into their sexual activities. It wasn't technically sex, and she couldn't get pregnant as long as he pulled out or she didn't allow any of his semen to leak into her vagina. Truth be told, she enjoyed when he came on her body, but she dreamed of feeling his orgasmic explosions inside of her. She couldn't have that in her pussy with him, so the ass would have to do.
They had clumsily discovered oral sex in their mid-teens, and it had become the main source of their fun. Masturbating together was still a favorite, but sucking him off either before, after, or while he ate her out was absolute heaven to her. Bree would often finger herself while she blew him, and almost always came simultaneously with him that way. There was something so deliciously naughty about tasting and swallowing his sperm while she climaxed.
"Remember," she said, bringing him out of his memories back to the present. "Don't let any cum near my pussy. I don't want a baby for my eighteenth birthday."
"What makes you think I'm gonna cum inside you?" Kevin asked as he withdrew his fingers.
"Oh come on, we both know you are. You're a virgin too. This is like a dream come true for you, losing it to a girl's ass."
He couldn't help but smile at the fact. "I can't lie, it will be pretty great."
Bree smiled back at him, and reached around to spread her ass for him. "We'll just have to settle for an ass baby then."
Kevin laughed, knowing her crazy humor would probably sound stupid to others. He loved it, though. Why did the thought of impregnating her ass turn him on? They were both perverted, he assumed.
He carefully aimed his rock hard penis at her pucker hole, which already looked a bit abused from his fingering. She had played with her ass before, but never to this degree. He didn't know what to expect, whether or not it would hurt or there would be a mess, of maybe even that she would absolutely hate it. But whatever happened, he was going to have fun.
"Mmm, careful," Bree said, feeling his head squeeze into her tight channel.
"Did that hurt?" Kevin asked, feeling dizzy from how exciting this was. He was already partially inside of her ass!
"It doesn't hurt, but it's uncomfortable. I'll be fine once I adjust. That's how it works in porn, right?"
True, they had watched a number of anal porn movies in preparation for this. They frequently watched porn together on their computers. Most of their adventurous exploits had begun with what they had seen pornstars doing online.
"I'll go slow," he reassured.
Kevin began to push again, going an inch deeper and then pulling back two. Then back in even deeper, and repeating the process until finally he was balls deep in her. He hadn't expected to go that far the first time. Was she in pain and just not telling him?
"Oh god, it's so deep!" Bree sighed. She was playing with her pussy while he rested inside of her bowels. "It's so weird, but for some reason my clit is on fire..."
Kevin gently thrust, barely moving but loving how her ass clung to his penis. Every little move sent shivers up his body. If he thrust hard enough, he could cum right now. But he didn't want it to be over yet, so he moved as little as possible.
"How does it feel for you?" she asked.
Kevin leaned forward and put his hand on her shoulder, bracing himself. "Awesome. Best birthday ever!"
Bree laughed, but the feelings in her ass made her jaw drop and she just lost herself in the sensations. She came hard when he seemed to go even deeper towards the end, when he finally thrust sharply and began to orgasm. She just moaned deeply as she felt his jets of semen burst forth into her rectum. It was so dirty and filthy, it just made her own orgasm even more intense. Kevin was panting behind her, making the cutest little sounds as he came. Bree loved when she could make her brother feel this good.
Finally, Kevin straightened himself and took in the sight of her ass clinging tightly onto his penis. Her tight hole stretched obscenely around his manhood was so arousing, he didn't want to move. Bree shamelessly kept masturbating herself until she came yet again, and her ass clamped down on him so hard he thought he might slip out of her. He prevented that by mashing his body back up against her, making her groan when his length reached that deepest point again.
"You fucked me so good," she said, looking back at him with a dreamy expression. "Happy birthday. I hope my ass was good for you."
Kevin spanked each cheek before slowly pulling out of her. When he was all the way out, she kept her ass in the air so his cum didn't leak out. It had felt like a really big load, and she wanted to savor it. Kevin enjoyed staring at her gaping hole.
"We will definitely have to keep doing that!" Bree said, holding her ass spread apart so he could keep looking. She wanted him to have his fill and enjoy himself. She loved when he started stroking himself, like he hadn't had enough of her yet.
"Maybe we could do it again later tonight?" Kevin said, smiling sheepishly. "After everyone else goes to bed."
Bree couldn't keep from touching her pussy, thinking about doing this again so soon.
"That sounds delightful..."