As surprising as it may seem, the girls didn't talk much for a couple days after Alexis had her first threesome. But on the third day, Alexis agreed to meet Ashley for dinner, wondering with cautious anticipation what her sister might have in mind next.
"So, you seem to me enjoying your, um, experimenting do far," said Ashley as the girls sat down on her couch with Chinese takeout. Ashley, once again, wore a top that showed half her stomach, and Alexis had even decided to wear a top that exposed a couple inches of her belly and a fair amount of cleavage. Ashley would make her change into something more revealing if she didn't show a little skin, Alexis had reasoned as she picked out her outfit.
Alexis still couldn't believe how slutty her big sister dressed - or how slutty she acted, for that matter. Thinking back, she couldn't remember the last time she saw Ashley in "normal" clothes. Well, the crop tops were normal for Ashley. She could probably count the tops she owned that were long enough to cover her belly button on one hand.
"Yeah, it's been - it's been a lot of fun," replied Alexis finally.
"Yeah, you're starting to become quite the little slut," said Ashley with a wink. "There's still a long way to go, though, you know?"
"Yeah," replied Alexis.
"I mean, lots of stuff you haven't tried yet. I was just wondering where you are with all of it and wanted to see if you're ready to experiment a little more."
"I don't know Ashley," said Alexis. "I've done a lot lately. Would it be OK if I had some time - maybe during Christmas break I could think about it some and then see what we want to do. You know, I have to study for exams anyway."
Ashley, convinced that Alexis had learned enough for one semester, nodded and agreed.
The girls finished their dinner and Alexis left uneventfully after catching up on the latest gossip and recalling the sexual encounters the two girls had experienced that year.
Of course, Alexis continued to give the guys a show from her dorm window two nights a week or so. She would get so stressed studying that she would just rip her clothes off and fuck herself hard, fucking her pussy and ass and sucking her dildo clean every chance she got. She was really attracting an audience, and she always covered her face.
Ashley, meanwhile, continued to serve as a slut for whoever she could pick up at a club or fraternity party, always willing to open her legs, always dressed to please.
Christmas break came and the girls went home to live with their dad for a month. Nothing eventful really happened during the first three weeks, except Alexis continued her ass-to-mouth exploits with her dildo and Ashley occasionally went to a party, always dressed like a whore, always coming back late, always winking at Alexis when she asked how her night was. She always seemed to leave some sort of indication that she was out getting laid, whether it was the smeared makeup or messed up hair or cum-stained clothes.
The girls went shopping one day, too, and Ashley again wore a top that left lots of her stomach exposed. The girls sat down and had lunch, and Ashley's thong rode up well above her jeans in the back. Alexis, of course, told her about it, but Ashley just smiled and said, "I know," afterward, Ashley bought a similarly short top for Alexis and even convinced her to change into it and walk around the mall wearing it.
"You don't find it humiliating? Wearing stuff like this? Ashley, I've never seen you really covered!" Alexis said, laughing.
"Yeah, maybe a little."
"Well we are home now - not in college! I've seen people I know and stuff - what are they thinking when they see us like this? They're going to think I'm a slut! Especially this time of year!"
"Yeah, Alexis - if you hadn't figured it out yet, lots of people know I'm a slut. I actually kinda like it - it turns me on."
"Yeah, that sounds just like you, Ashley," replied Alexis. The girls laughed and continued to walk through the mall, Ashley strutting her body and Alexis slowly becoming more comfortable in her attire. The girls finished shopping after a few more stores, and Alexis was relieved to only be seen by one person she recognized, other than Ashley of course.
The girls left the mall and stepped out into the cold. Alexis folded her arms across her bare stomach, shivering. Ashley, on the other hand, adjusted her hair, allowing her shirt to ride up and show even more skin as the hem flapped in the cold breeze.
A few days later, while the girls' father was at work, Ashley left to go see a friend, leaving Alexis home alone. Seizing the opportunity, Alexis pulled out her dildo and began another ass-to-mouth performance, hoping to finally satisfy the urges that had plagued her for the last couple days. She was on her fourth round of switching from her ass to her mouth when Ashley barged in the bedroom unannounced.
"Ashley!" Alexis shouted.
"Whoa, you are really going at it!" Ashley exclaimed, laughing.
"Damn it, I was so close!"
"Come on, it's not like I've never watched you fuck yourself."
"Yeah, but I was - "
"You were really into it. I heard you all the way down the hall."
"Did you hear me moaning, or - "
"I heard everything. The moaning, the begging, you calling yourself a filthy slut - I bet you really want someone to watch you right now don't you?"
"Oh my god, I can't believe - "
"Don't be all prudish on me! So you like to be called a slut - I like it too. I love it, actually. And I know how much you love being watched."
"So what, you're just going to sit here and watch me fuck myself and listen to me tell you what an ass to mouth slut I am?" Alexis noticed at that exact moment that she had completely stopped masturbating, but she was still more horny than ever.
"You would just love that, wouldn't you? Well guess what, I have to go shower." Ashley quickly unzipped her low-rise jeans and slid them off along with her panties, stopping to dip two fingers into her pussy. When she pulled them out, Alexis could see that they were unmistakably covered in cum. Before she could ask, Ashley began to explain.
"I just went to meet a couple of guys for a quick fuck," Ashley said. Slowly, she lifted her fingers to her lips and began to lick off the remnants of her slutty day. She sucked her fingers for a few seconds, teasing Alexis as she swallowed the cum. "See, I can't watch you - I have to shower."
"Ashley, wow," said Alexis.
"What, are you jealous? There are plenty of guys out there who would be up for a quick meet and fuck. Go find some if you want it."
"No, I just want someone to watch. I don't want to fuck guys around here. I feel like I'd get a reputation!"
"Yeah, that you're easy and a slut? You think everybody doesn't know I am? Come on. And if you really just want someone to watch, open up your computer and let somebody watch!"
"Wh- what do you mean?" Asked Alexis.
"Come on, you know. There are websites where you can get naked for a stranger. Show your tits, show your pussy, even fuck yourself for them. Whatever you want to do."
"Oh - wow - really? Can you show me? Is it safe?"
"Sure." Said Ashley. She opened up Alexis' laptop and brought up a site and clicked a few buttons and keys. Within a few minutes, there was a guy on the screen chatting with Alexis, who was in bed completely nude.
"You can type to him," said Ashley. "You have no idea who he is or where he is. And that's half the fun!"
