Slippin' into Darkness: Part 3

Chapter 7

When it had all ended and he calmed down a bit, he whispered apologetically again, "Sorry! Normally I'm not like this."

She joked, "What? You mean you don't normally spray your seed all over girls you hardly know while your sister is jacking you off in a supply closet in the middle of school?"

Alan just nodded grimly. He was too worried about getting caught to laugh. He didn't know which frazzled him more: Kim talking about what she knew, or someone outside coming in and finding them. He closed his eyes and thought, I just have to trust that things are gonna be okay. Because what can I do now?

Kim went on, "I hope this isn't normal, 'cos you two are like walking orgasms. Every second I've seen you two together, you've been horny and just getting hornier and hornier. It's too much for a little girl like me to take!" She reached down and scooped some of his cum off her leg.

Alan was embarrassed at being so horny about his sister in Kim's presence, but Katherine wasn't. She just winked and said, "You go, girl! Give it a taste. It's surprisingly sweet."

"So this is what semen is, huh?" Kim said as she put it up to her mouth. "I'll have to try some new things if I have any hope of keeping up with you two. I had a boyfriend or two but I never let them get far. I guess it was just for show as a cover for my liking girls..."

She put the cum in her mouth, and contemplated the taste. "Not bad. Not bad at all. Does all semen taste like this, Katherine?"

"No, his is very special. And I'm not just saying that because I'm hopelessly biased, really. His is the only semen I've tried personally, but a woman who has fucked dozens of men said his was the best she'd ever tasted, hands down."

"Oooh! There's another girl involved? Do I know her? What's she like?" Kim assumed it was a girl.

Alan replied vaguely, "She's very pretty. Very sexual. Talented, too." He looked at Katherine and hoped she got the message not to be any more specific than that. As far as Alan was concerned, Kim knew way too much already.

Kim just nodded as she thought about that. She noticed that Katherine didn't disagree with what he was saying. She was intrigued that she didn't seem to react with jealousy while watching Kim eat Alan's cum or by this veiled talk of another woman.

In fact, right then Katherine suggested to Kim, "You've got to try some more. Why don't you drink it straight from the source?"

Alan had been cleaning his hands with a moist towelette he'd had the foresight to bring. He would have offered it to Kim to clean her leg, but she seemed to prefer consuming his cum instead, and of course he loved seeing that. He froze in his cleaning effort as the implications of Katherine's mention of "a woman who has fucked dozens of men said his was the best she'd ever tasted, hands down" finally hit him. He said in an incredulous tone, "Katherine! You've been talking to-"

He was about to say Aunt Suzy, but cut himself off at the last second as he remembered it was better for Kim not to know specific names. He continued less frantically, "You've been talking to her about the taste of my cum?"

"You'd be surprised what we girls talk about sometimes," Katherine replied, sufficiently vaguely. She made a point to say girl to better mislead Kim about who it really was. (In truth, she hadn't really talked to Suzanne about Alan's cum, but she'd overheard Suzanne and Susan discussing how tasty it was.)

"Sounds like Alan is having all sorts of fun," Kim commented. "Was it Amy? I'll bet it's Amy."

Katherine and Alan looked at each other. Alan realized that since Kim and Amy were both cheerleaders, Kim would need to get clued in sooner or later. So he said, "I've seen Amy naked, and touched her and teased her a bit, but that's as far as it goes. She's so innocent, you know? To do more - it just wouldn't feel right. Kind of like stealing candy from a baby."

"Interesting," Kim said. "So who's the other mystery girl, then?"

Alan just answered, "Sorry, I can't kiss and tell."

So Kim changed the subject. "Why don't we get on with the painting, now that you two are done playing around? Or is touching my pussy going to make you lose it again, Alan?"

"No, I'm good. In fact, I can not only paint you..." - he began painting again and started on her front - "I can even do this at the same time." He began to finger Kim's slit with his free hand. "We need to make your pussy lips puff up as much as possible, so I can paint them completely."

After another minute of jilling her, he commented, "I wonder if Michelangelo ever had to do this, to finish one of his paintings." He was more relaxed now and wasn't whispering, though he did keep his voice down.

However, to Katherine's great disappointment, Alan's penis was still down for the count after he'd shot his seed. Since Katherine was already naked, she stood up and repositioned slightly until she was in full view of Alan and Kim in the very claustrophobic space. Then she began to finger herself while pinching one of her nipples as well.

Alan moved out to the way, allowing Kim to squat to see whether he'd gotten all the places that would be exposed by movement. This put Kim's face right in front of Katherine's crotch, to which she had no objection.

Kim said, "God, you two are nonstop sex addicts, and good at your school work to boot! Especially you, Alan. How do you do both?"

"I'm not a good student anymore," he replied ruefully. "I WAS up until a few weeks ago. That's when I began my descent into debauchery. Same with Katherine. If this keeps up, it's just a matter of time until we're both expelled or flunked out. God, just think if someone came into the supply room right now." He started to panic himself again. "Dang! I have no idea how frequently this room is used. It could be used all the time, and then they'd hear us in here! Look at how we look right now. What would we do if someone came in?!"

"Don't worry, Big Bro," Katherine said. "Between the three of us, we've got our bases covered. If it's a man, Kim and I fuck him in return for his silence, and if it's a woman, you do."

"Oh yeah, right. You're so sexed up you can't tell fantasy from reality. And what if it's, like, a gay man, or an old person, or something? Or two people? And even if your plan worked, what of the consequences? For starters, I wouldn't want a strange man to have sex with you. We've got to get our act together or we'll be in jail or something before long."

"All right, I admit we have to get our act together a bit," she conceded. "But today's been such a unique day. You know, you admitting that you're going to fuck me and all. And it's so cute that you're possessive of me!" she gushed happily.

He ignored her last comment, and said, "I haven't exactly agreed to that! I'm just saying..." He wasn't sure what he was saying, or what he'd agreed to. He felt like he was on a wild roller coaster ride, and he both hoped the ride would last forever and wanted to get off right away.

After a long pause, he said, "I'm thinking about the idea, okay? That's it." Deliberately and rapidly changing topics, he turned to Kim and said, "By the way, I'm done with the front now. Sorry, I'm going to have to stop fingering you. I like how you shaved, by the way. Is that new, for today?"

Kim answered, "I've shaved it before, a while back, but it's newly done for today. Hurry up and do that part so I can get my fingers back in there!"

"Sorry, bad news," he said. "You'll have to let it dry for at least the next twenty minutes."

Kim couldn't believe what she'd heard. "Oh yeah, like that'll ever happen, with you two carrying on just inches away from me!"

He said commandingly, "All right, we have to stop the hijinks, both of you. We're running out of time. I haven't even started painting my sister yet, and Kim's paint job has to dry."

Chapter 8

Alan finally finished painting Kim, and then turned towards Katherine.

She stood less than a foot behind him, totally naked now and touching herself all over. She was lost in the throes of erotic ecstasy as she dug deep into her pussy with two fingers.

Alan tried to get his sister's attention. "HellooOOOooo! Anyone there? Did you hear what I said about you having to stop? Could you take your hand out of your pussy for one minute?"

"I'm sorry," said Katherine as she slowly came back to the here-and-now. "It's just that I was thinking about the different ways and places you're going to fuck me. Maybe we can even do it this afternoon!"

"I've got to paint you, okay? Turn around and calm down. Put your hands up behind your head, and keep them away from your body!"

Alan began with her butt. Rivers of her juices rolled down her legs, distracting him. With her butt right in his face, he noticed all over again just what a beautiful, well-shaped bottom his sister had. He could smell her pussy too, and the combination of her beautiful ass, flowing pussy juices, and the aroma of sex which exuded from between her legs made his dick begin to twitch again.

He thought, Sis is so totally fuckable; why does she have to be my sister? ... On the other hand, if she wasn't my sister I probably wouldn't even know her. Heck, no way would girls like Aims or Sis even associate with me if it wasn't for the proximity and knowing each other for so long. I wish there was some way I could undo the sister label though, so she could be my girlfriend.

Seeing her hands still roaming over her breasts, he barked, "I said, put your hands behind your head already!"

Katherine finally obeyed his command. "I'm trying to calm down, but it's hard when I'm in a **** position like this with my hands behind my head. I feel like I'm under arrest."

That gave her an idea, and she continued in a helpless voice, "Officer Alan, please don't hurt me! ... What's that? You have to do a full body cavity search because I was driving over the speed limit? With me naked like this by the side of a busy highway? ... Don't you trust your own sister? ... Well okay, if you have to, but why are you taking off your pants? ... You're going to probe my cavities with THAT?! It's so big! That's not like any kind of Breathalyzer test I've ever heard about, but if you say so!"

"Okay, okay, enough already," Alan grumbled, turned on by her scenario though he was. His penis had been getting a much needed break, until she started talking that way. "How can I work with you saying that kind of stuff?"

Katherine grumbled too. "Shucks. I was just getting to the good part in the story, officer. Please continue with your probing, anyway. After my blowjob proves to you that I'm not drunk, then you'll probably need to stick your thing back in my mouth as part of the cavity search. Well, one of them, anyway. Hee-hee!"

"And I'm supposed to keep calm when you two are like this?!" said Kim in exasperation.

"Are you? Calm? Dry?" Alan asked.

"For now, but barely." Kim replied.

He thought, It's strange, but I'm feeling more comfortable around Kim, even though I still don't know her from Adam. I guess playing with a girl's pussy is one way to bond. Besides, it does seem obvious that her only reaction to all this **** stuff is to get super horny. And Sis does say we can trust her...

After having Katherine calm down for a few minutes, Alan found that he was nearly done painting her butt. (His penis also sincerely appreciated the break.) He finally turned her around and started to work on her other side.

"Alan," Katherine said softly, "I'm pretty mellow now and I promise not to tease. Have you given any thought to my afternoon idea? Seriously?"

"If we were to do it, and that's a big if, where would we find a safe place? We can't begin to think about it until our you-know-who is gone."

She understood his veiled reference to Ron, and nodded. "What about this room? Hey! We could come here after school just a few hours from now!"

Alan considered that for a moment, but concluded, "This room isn't good enough. For one thing, with all the shelves and supplies there's barely room for three people to stand up. There's no room to lie down properly at all, on the cold, dirty floor. You don't want to do it standing up, do you?"

"I don't care! I'll do it with you standing, sitting, lying, swinging from the light fixtures, whatever. All of the above! I know ... We could get out of this closet and do it on the floor of the next room! In fact, why even wait until after school? We still have at least twenty minutes, and I'm sure Kim would like to watch."

Alan momentarily addressed Kim. "Don't mind my sister. She's gone totally insane. Yeah, getting caught doing my sister on the cold concrete floor during lunch sounds really enticing. I can just imagine being led away in handcuffs through crowds of our friends."

He turned to Katherine and said sarcastically, "Why don't we just do it out in the hallway to make sure we'll get caught?"

"Okay, so maybe that's not the best idea," she conceded. "I guess we're screwed for now. Or not screwed yet, as the case may be," she giggled. "Our first time should be special and not done furtively in the back seat of a car or something like that. But I'll think of something."

Kim volunteered, "I know the perfect place."

"You do?" both Katherine and Alan said to her at the same time. Alan swiveled his head around to face her.

"Yes. Perfect privacy and security. My house!"

"Your house?" He was so shocked that it was all he could say. He was pleased, but also scared that the incestuous idea had so suddenly become increasingly real and possible. He also still worried if he could trust her. The **** possibilities in doing it there ... We could be so screwed! But then she already knows everything anyway. How much worse could it be?

Kim explained, "Yeah, you two are, like ... I dunno, inspiring or something ... Both of you are like sexual desire in its purest form. Nothing can stop you! It's so sexy ... I wanna help. Katherine, I wish I could find someone I was half that excited about, guy OR girl. Anyway, I live with just my mom, and she's ALWAYS at work at least until six, usually seven. I mean she's never come home before that, and even if she did, I'm on the upper floor and we would hear her car coming up the driveway."

Alan resumed painting again. He was absolutely determined to finish, no matter what.

Katherine, on the other hand, bounced up and down in excitement, which **** him to pause.

Kim smiled kindly. "Given that I'm supposed to treat you like a sex ****, Katherine, I'm being way too nice. Maybe I'm just not cut out to be the cruel master type. Anyway, I do have one condition. Your first time should be special with just the two of you alone. But after that, you can keep using my house, but only if I can join in."

"Join in?" Katherine asked in surprise. "Even with Alan?"

"Hrm. I don't know about me being with him, but I figure that if I'll ever have the perfect opportunity to give an exciting man a try, this is my chance. I have to admit his finger felt pretty good in me just now, even if he was just doing it as part of the painting job. I guess a finger is a finger, and I've always liked strap-on dildos, too. So trying a dick might be ... interesting. If I'm not into it, I still have you, Katherine, and Alan and I can keep you busy at both ends."

Alan had stopped painting again, while his mind just boggled. "How can anybody turn down that offer?" he thought out loud.

"I accept!" Katherine said. "Big Brother? This afternoon?"

"Hmmm..." he pondered, and then replied to his sister, "No, we have to wait. I'm seriously worried that you're turning into an uncontrollable sex maniac. If you can hold yourself off until Wednesday, then maybe that shows we have enough self-control to do this and possibly not get caught. Then we can make the arrangements for Thursday." In addition to that, he had an unspoken worry about Kim. He figured if a few days passed and she still hadn't told anyone anything, that would go a long way to proving that she could be trusted.

He added, "But between now and then, you have to act totally one-hundred percent like your old self. No touching, nothing. I've gotta maintain control too. If we can't do that, then we need to cool off some more."

"Deal!" she said excitedly. "That's why I love you so much, Brother: you're so smart and wise and prudent. I wish I could reach down and hug you!"

He warned her, "If you did that, then Thursday would be off. We have to maintain total control. Don't even call me 'Very Big Brother.' You never added the 'very' until a couple of days ago."

"That's because, all these years, I never really knew just how big it was until I put it in my mouth."

Alan's penis twitched with new life at that thought. As an afterthought to their plans, he asked Kim, "Does Thursday work for you? And can you maintain complete secrecy?"

Kim answered, "I'm also with Katherine in that I hope you two can hurry it up a bit so I can get in on the action! But I can wait. And I swear no one will know except us three. Not even my mom will ever have a clue, if we plan this carefully. The only other person who might suspect you two is Heather, because she knows more about the painting project than the other cheerleaders. But I can help steer her away by using some subtlety."

Alan was happy to hear all that. It seemed that Kim had some prudence. "Good. Heather is a bit scary, don't you think? She intimidates me, anyway. All right, let's finish this paint job and get out of here. I don't even want to know what time it is right now, and I'm still not done. Sis, you may have to be late to your fifth-period class, if this is gonna dry. You two behave yourselves and put your tops back on. When I'm done painting, I'll go see if I can finagle a hall pass for you. And Sis, remember that you're not allowed to get yourself off with Kim either, or anyone else, until Thursday. You wouldn't prove your control if you did that."

"Damn!" both girls said in unison.

Katherine got Alan to agree that the ban on her behavior would end at exactly midnight Wednesday. She planned on being with him as soon as the minute hand ticked over to Thursday.

Alan was able to get the hall pass for his sister. That was one of the perks of his having such a goody-goody reputation.

When he returned to the supply closet just before the end of lunch, he also had a can of air freshener. Both girls stood naked from the waist down and had a normal conversation with each other when he stepped back into the closet. He'd used a special knock first, so they weren't worried.

"What's with the air freshener, and where did you get it?" asked Kim while she helped clean up.

"When I walked out of here and into the main supply closet, I realized this room smelled totally like sex. It still does, obviously. There's absolutely no air circulation in here. Even if someone were to come in here hours from now, they're still going to suspect, no, they'll know, that people have been fooling around in here. Look at you, Kim. You STILL have my dry cum on your leg! Good thing I thought of every eventuality - I brought some moist towelettes, too."

"Katherine, your brother IS pretty resourceful," said an impressed Kim. "There's definitely something to this guy. No wonder you, maybe Amy, and this other mystery girl are all over him. If I were to have a secret affair with a guy, I'd want it to be with him."

Katherine pretended to be passing her hands over a crystal ball while telling a fortune. "You WILL have such an affair very soon, and it WILL be with him." She giggled. Like bees to honey, she started to rub his boner through his shorts.

He gave her a discouraging look, since she was supposed to behave for the rest of the day. He had to push her hand away so he could get something done in the little time left for lunch.

"Good point," said Kim, surprised, as she hadn't thought of herself and Alan as having an "affair."

They practically sprayed half the bottle of air freshener into the room before they left, just to be on the safe side. It smelled like one giant flower by the time they were done, which in itself would be very suspicious for a supply closet, but it couldn't be helped.

Alan decided that the next time the need arose, he would get something that smelled like a powerful cleaning agent to mask any smell.

Katherine was late to class, but it didn't matter much.

Kim spoke to Heather before practice. The two of them had previously thought up some devious plans for what they would do with Katherine during practice that day, but Kim begged that they delay until Thursday, even though she wouldn't tell Heather why.

Heather gave in to Kim's pleading and agreed, though reluctantly, telling Kim "You owe me one." She had really been looking forward to Katherine's punishment.