At her high school graduation, Emily was feeling particularly excited. On one hand because she was going to a renowned college after summer, but more importantly it was because her older brother Dylan had promised her a very special gift if she graduated with good grades. She'd almost always been a straight-A student, except for that time back when she discovered masturbation. She got a few B's that year. But this time she got nothing but A's, which was to be expected, really, considering her track record - this year it was no doubt motivated in part by the potential of aforementioned special gift.
Her brother was a couple of years older than her, getting his master's degree next year. While not the best with studying nor grades, he was quite experienced in other areas of life... After the traditions and celebrations at Emily's high school were over with, the family all went out to a fancy restaurant for a celebratory dinner, and Emily and her brother made sure to sit next to each other at the table. Their parents, aunts and uncles were conversing among each other, so Emily turned to Dylan.
"You have no idea how excited I am for your present," she said in a hushed voice, inches from his ear. "I'm gonna die if you don't tell me. Like, at least give me a hint!"
He smirked and looked around the table, making sure nobody was looking their way. "It has something to do with you being on all fours."
She bit her lip, not quite able to figure it out - she knew it was something sexual, and they had fucked in that position many times. But why would that be such a special present?
"What do you mean?!" she asked impatiently, excited at the mystery.
"You'll find out later, don't worry sis," he said and looked away.
He put his hand on her thigh under the table, moving it upwards and under her skirt. She looked very anxious all of a sudden, and one of their aunts happened to look at her just then.
"Are you alright, Emily?" she asked as Dylan's hand moved further up Emily's thigh.
Emily nodded frantically as a few of their other family members looked at her too. "I'm fine, super great! Just really emotional about my graduation!"
Her comment was met with a few warm smiles, but then they turned around and moved on with their conversation from before.
Dylan didn't flinch, his hand now over her panties which were starting to get damp... She gave him the side eye, loving what he was doing but still angry with him for doing it here of all places! He shrugged and gave her an innocent smile, and with his palm on her pubic mound he pressed his fingers against her. Her eyes widened, and she was forced to hold back a whimper as he increased the pressure, forcing his fingers against her opening on the outside of her panties. She could hear a faint squishing sound from down there as her wetness reacted to the pressure. That was it - she couldn't take it!
Although he was only getting started, she hurriedly whispered him their safeword before she went crazy. For a moment, he was considering not respecting it - it was tempting to continue. He could tell that she really wasn't kidding though, it was simply too much. They liked to be quite daring when out in public when nobody knew they were siblings, but for Emily, it was far too daring to do this kind of thing right next to family!
He moved his hand away from her crotch, and left her to her own devices - her panties would only get even wetter though. Not only from what he'd just been doing, but also from how now she couldn't stop fantasizing about it - and plenty other things.
A couple of hours and a 3-course dinner later, they went back home. Their parents went to sleep almost immediately afterwards, but Emily and her brother stayed up - they had plans. Going into the living room, Emily planted her petite self down on the couch as Dylan just looked at her hungrily, lusting for her... She knew that he liked to look at whatever parts of hers whenever he could, and she loved the attention. So she hiked up her short skirt as she sat down in the couch, sitting with her legs spread in an at least ninety degree angle. Her white panties were showing how turned on she was. Upon seeing the sizable wet spot on them, her brother couldn't help but immediately get down on his knees in front of her.
"Slouch down," he said.
She did, and with her butt hanging slightly off the couch cushions, he pulled her panties off. She spread his legs wider for him, and then he went to town! Having longed for his touch since the charade at the restaurant, she grinned in ecstasy as she felt his fingers rubbing her moist slit up and down. She was wetter than she felt, her juices quickly being smeared all over her vulva and even inner thighs. He placed his thumb on her clit to gently rub it as he, with his tongue, penetrated her tight pussy. She threw her head back, grabbing her top and bra and pulling them both over her head in one swift move. All she was left wearing was the skirt which was not in the way, hiked up around her waist. She placed a hand on each of her small breasts, her nipples quickly stiffening as she played with them while watching her brother's stiff tongue going in and out of her in rapid movements.
It didn't take long for her to reach orgasm like that, her soft thighs trembling as they pressed against each side of his head as she rode out her climax. Afterwards, with the taste of her pussy still on his lips and tongue, he propped himself up and reached for her lips, kissing her deeply. Getting a taste of her pussy from his mouth, she moaned into him.
"How are you so good at that? I mean, oh my god," she laughed in disbelief.
They rolled around on the couch for a while, her near-naked body grinding against his clothed one as they made out - his bulge desperately pressing against her naked skin. She loved how it felt, and despite feeling like she could keep making out with him for hours on end, he couldn't take it. He was way too horny to go on like that.
He broke their kiss by leaving her soft lips to take her nipples in his mouth - one at a time of course - teasing them for just a moment before standing up. As he quickly undressed himself, she took her skirt off, tossing it carelessly on the floor next to them.
"Now for the all-fours part," he said with a smile.
He directed her to get on her knees and to spread them far apart, and to bend over. With her ass in the air, he smiled hungrily. His big cock was already about ready to burst, precum hanging from the tip. He could have very easily found himself sliding inside of her right then and there, and blown his load in minutes like he'd done so many times in the past. He contemplated that option for a second, biting his lip at the sight of her little pussy, glistening wet. Looking so alluring, so very luscious on display like that. He contained himself though, remembering the gift he'd promised her.
For a long time now, Emily had been asking him about anal sex. She'd never tried even putting a finger up there, it was simply the idea of it that she was in love with. She'd brought it up quite a few times, but each time he found a way to avoid it, change the subject, or pretend like he was busy. He was opposed to it because it was a way too naughty thing to do - as if fucking one's sister isn't naughty... With that said, he felt like he owed her for all the sexual favors he'd accepted in the past. Getting goodnight handjobs, good-morning blowjobs, good afternoon sex, and so on. He did return the favor once in a while by going down on her, but never even close to as many times as she'd serviced him - she was just the giving type, he reasoned!
But tonight was the night, and as he leaned in, he moved his flattened tongue along her slit, lapping up her juices in one go. He'd usually stop at her entrance, so she didn't expect him not to. She was exhilarated at what the present was going to turn out to be, waiting in desperation to find out. She wouldn't have to wait much longer though - because as he licked along her pussy, his tongue continued and only stopped once he'd given her *other* hole a good, long lick. She whined in excitement, smiling from ear to ear as he began to kiss, lick and tongue her anus. That tight, pink asshole of hers...
She was in that position for an excruciating amount of time, the feeling of her brother eating out her ass almost too much to bear. Droplets of juices were hanging from her labia, and some had already let go and dropped onto the couch. But she sat still, letting her brother work that magical tongue of his. A few minutes later however, he stopped. Her anus was at this point just as wet as her pussy was, but she didn't feel any other touch for the moment.
"This is the best present *ever*!" she exclaimed, not knowing that this wasn't even half of it.