(Once again thanks for the positive feedback. However, I hate to give away spoilers but...those who are asking about Mom & Dad joining in and such; sorry, it doesn't happen; it's not like that. This is not a fictional story; everything you have read about "Amy" and me really happened. Sorry to disappoint you.)
While Amy was busy taking (another) shower, I threw her sheets and pillowcases in the washer and wiped down her headboard. I wonder to this day if our Mom wondered where her laundry detergent and fabric softener went. I didn't bother with a shower; I just wiped down my nether regions with soap, warm water, and a washcloth (which I threw in the washer with the other stuff). If anyone asked, I could always use the excuse that I was working out downstairs and was just too lazy to take a shower.
At around 2:45 Amy and I put the sheets (and washcloth) in the dryer. Our parents wouldn't get home for at least 3 more hours. This left plenty of time for some heart-to-heart conversation about what had gone on between us the last 24 hours.
"Amy, let's not wait til tonight to talk about what's happened. Mom and Dad won't be home til 6; that leaves us plenty of time to talk. I mean, I'm dying to know why; I don't think I can wait that long."
"Okay, let's go downstairs and sit on the couch."
"Let's go."
We sat on the couch together, then she lay down and put her head in my lap. Her hair was still damp from the shower. She had on her bathrobe; I had on boxers and a wife-beater.
"Andy, what do you want to know."
"Why? What happened in the last 24 hours? I mean, we're brother and sister, right? We're not supposed to be fucking each other. We are brother and sister, right?"
"Of course we are, dumbass! I barely remember it, but I remember the day they brought you home from the hospital. It's one of my earliest memories."
"Well, if we're really brother and sister, then why have we been doing what we've been doing?"
"Well, you're attracted to me, right? You sure seem to get hard with me pretty easily."
"Yeah! You're sexy as fuck! I mean, you're better in bed than anyone I've ever been with! But it still doesn't change the fact that you're related to me."
"True. But you don't plan on marrying me, right? You don't want me to have your children, do you? I figure as long as we keep this undercover and don't let ANYONE know; that includes telling your little high-school buddies, Andy; then what's the harm in a little sex? I mean, I know you as well as anyone and you know me as well as anyone. So the trust factor isn't an issue."
"But don't you think it's wrong? I mean, if it was so normal, wouldn't everyone be doing it?"
"I think it's a lot more common than you might think. One of my sorority sisters, Jamie, has been sleeping with her brother since she was 16 and he was 17. I'm the only person she's told; she'd kill me if she found out I told you. Anyway, she's now 22 and he's 23, and they're as normal and well-adjusted as anyone I know. In fact, her brother is engaged."
"Engaged? But he's still having sex with somebody besides his fiance!"
"Yeah, but she said something to me that makes perfect sense when you think about it. She said that there will never be a threat of him leaving his fiance for his sister, so as long as he loves her, he'll never cheat on her with another woman."
"Does his fiance know he sleeps with his sister?"
"Oh, yeah. He told her a couple of months after they started dating. She kind of freaked out at first, but he got Jamie to come over and talk to her. She just explained to her the situation and that she shouldn't feel threatened by her, since he wasn't going to leave her or anything. Oh, and before you can say anything, no they don't have threesomes, so get your mind out of the gutter."
"Darn. I was hoping."
"Typical male."
"But you still haven't answered my question from earlier. When did you decide that you were sexually attracted to me? Why am I just now finding this out?"
"Oh, babe, I've thought you were hot for the longest. I mean, think about it. You're a Virgo. I'm a Capricorn. We're the perfect sexual match for our signs; I think you've figured that out too. You play sports; I play sports. We both like the same music. We never really argued or fought that much when we were kids. You know, you're really a good-looking guy. Not supermodel hot, mind you, but those guys are way too vain for me anyway."
"Well, thanks, I think. Yeah, you're pretty hot, too, you know. You're a smart-ass like me, and you've got a good head on your shoulders, unlike a lot of girls your age. You're right about how similar we are, though. A lot of times siblings go out of their way to be different from each other. We never did that, did we."
"So do you have a problem with what we're doing? If you do, we can stop and pretend like it never happened."
"No, I don't have a problem with it; I'm just terrified that someone will find out, especially Mom and Dad. And what if you happen to get pregnant?"
"Look, I'm not getting pregnant. The pill is 99.9% effective; if I do, then, well, I guess we'll have to deal with that situation; but it's not gonna happen, alright? And how would anyone find out? No one's here watching us. Besides, the only person I might tell is Jamie, because she's in the same boat."
"But what'll I tell Jenny?"
"I don't think you'd wanna tell her; I don't think a high-school girl could handle it. But think about it from your side; you'd be getting ass from 2 hot-ass girls, but people would only know about one."
"But Amy, it's so wrong."
She looked up at me, "But it's so right." She then sat up and scooted over to me; we started kissing and with that my erection started up again (pun intended). I put her hand on my hard-on.
"See what you do to me, Amy?"
"I see; your dick loves me as much as I love him. But you know we can't do anything. Mom and Dad'll be home soon. We can't chance it. I do have an idea how we can spend the night together, though."
"What do you have planned, me lovely?"
"It's a secret. You'll find out at dinner, the same time they will."
"I hate you."
"I LOVE you!"
"You don't love me, you just love my doggiestyle."
"We haven't tried that yet."
For the second time that day I almost came in my pants at her suggestive talking.
Right on cue our parents came home about 6 P.M.; since they carpooled, they always arrived home together. They usually alternated cooking; Mom Monday, Dad Tuesday, etc. Tonight (Friday) was Dad's turn; Spaghetti and meatballs (yum!).
About halfway through dinner, Amy told us her plan. "Hey, guys, um, Beth is having a party tonight, kind of a going back-to-school thing. Would it be alright if I brought Andy along? I know he's not 21, but you always told us that we were going to drink anyway and just make sure to call you if we needed a ride home. You did that for me a couple of times, remember? Dad drove me home and Mom drove my car home. We're probably going to stay the night at Beth's parents' house anyway, so that wouldn't be an issue."
"Where are Beth's parents?" asked Mom.
"Hilton Head."