What Are They Doing?


Caution: This Erotica Sex Story contains strong sexual content, including mt/ft, Mult, Consensual, Heterosexual, Light Bond, First, Safe Sex, Oral Sex, Masturbation, Size, .

Desc: Erotica Sex Story: My sister asked me to invite over a classmate of mine to see her after school. What could my junior-year high school sister want to see an eighth-grade boy for? Oh, did I found out.

Chapter 1

I have a sister who's three years older than I am and when this all began, I was fourteen, just. She was seventeen and a junior in high school.

So, when she came in my room one afternoon after school and asked me, "Do you know Bryan Deering? He's in your eighth grade class, right?" I told her that, sure, I knew Bryan and asked why she wanted to know.

"Oh, I just wondered. If I wanted him to come over after school sometime, would you ask him?"

Was this weird? I thought.

"Yeah, I guess. Why Bryan, do you know him?"

"Not exactly. I know who he is, I've seen him. Well, would you?"

"You want me to see if he would come over after school? To see you?"

She said yes and I told her I'd ask him, just tell me when. Then she said, "Could you call him and ask him to come over tomorrow, after school?"

Well, I did agree though I thought it was pretty strange but my sister can do some loopy things sometimes.

I called a friend of his and got his number, then got him on the phone and told him my sister wanted to see if he'd come over to our house the next day.

Well, obviously he asked what she wanted to see him about and I told him I had no clue. Then, surprisingly he said, "Sure," and that was it. I told her, asking again why she wanted him to come over and she mumbled something about 'mutual friends' and left it at that. Weird.

The next afternoon, I was up in my room when I heard the doorbell ring and my sister go clomping down the stairs. I didn't want to even go out and see him, I was just too weirded-out by it all. He's fourteen, she's seventeen, what on earth would interest my sister in some boy my age.

So, her door was closed the whole time he was there and when I came down for supper, my parents were home and Bryan seemed long-gone.

I wondered if she was interested in him as a boy. He was cute, taller than most of the boys in my class, but he was pretty shy, too. Lots of the girls liked him, after all, he had wavy blond hair and these deep blue eyes but, like I said, he was shy and seemingly uninterested in girls.

But then, the next afternoon, I heard the bell again and peeked out to see them going in her room again. What the hell?

So, I made a few passes by Anna's room, my ear cocked for any clue of what was happening inside and it was totally silent except for some music.

I stationed myself downstairs and when, about five-thirty, they both came downstairs, I said hello.

"Oh, hi, Eileen, how are you?" he replied, smiling.

"Fine, I didn't know you knew my sister," I floated out there trying to find out what was up with my sister's interest with this boy from my class.

"Yeah, um, I'm helping her with math, I'm pretty good at math, you know," he said as she ushered him out the door. This was weirder and weirder. Then, the idea hit.

I went out to the garage and brought the folding ladder up to my room and put it up to the heating vent near the ceiling and looked in. There was an identical vent opposite that was in Anna's room, so I unscrewed the vent grille on my side and got a mirror.

When I climbed up again, I held the mirror at an angle and there was my sister's room all laid-out beneath me. Now I would know if it was math or something else.

I put the ladder under my bed and went about the rest of the day trying not to think about my sister and Bryan.

The next afternoon came around and when I got home, Anna was already there. I had a snack and went up to my room to wait. Of course, this would be the day when Bryan came later, driving me nuts. But I did hear the doorbell and then got the ladder set up and the mirror ready.

I waited until I knew they had to be in her room, then slowly, silently, I eased myself up, tilted the mirror and saw what they were doing.

It sure wasn't math. You don't need to be naked to do math. He was down on her bed as she straddled him going up and down on top of him. They were fucking like crazy. I had planned on just taking a quick look to see what they were up to, then getting down and doing my homework for the next day.

Oh, I wasn't going to miss this, though, it looked so hot and sexy, his hands were on her boobs, she had really nice ones, bigger than mine, of course, and she was bouncing on him like she was in a rodeo. So, I stayed on the top of the ladder until I saw them both finish. They were quiet, I guess trying to hold it back, but she was soon down on him kissing him over and over.

Then, she moved off him and that was the first time I could really see Bryan naked. Wow, it stood straight up in the air, long and thin.

Now I watched it disappear again, this time into my sister's mouth as her head bobbed up and down over him. My god, she was giving him a blow job.

Then the full import hit me ... my seventeen-year old sister was having sex with a fourteen-year old boy, a boy in my eighth-grade class. She was a junior in high school, a senior next fall.

I was barefoot on the ladder so now my feet were hurting but the scene below in my sister's room was so exciting I couldn't stop looking. I did take the mirror away for a few minutes at a time, not wanting to get caught spying, but every time I looked, I felt a twinge in my panties it was so sexy.

I had to get down and go pee at one point but when I got back up in position, Anna was flat on her back with her legs over Bryan's shoulders. God, he was eating her out. Oh, did that look good.

I have a friend at school, Becky Friedlander, who told me all about how it feels to have a boy do it to you, she made it sound like the best thing there is and when I asked her who the boy was, she really clammed up.

Who it is wasn't important, she told me, it's how he makes me feel when he gets me off this way.

She really made it sound so good and I kept asking her who the boy was and she finally told me ... it was her older brother. Really. Wow.

So here's my sister getting oral sex, getting eaten out, by a boy from my grade at school. And I was watching.

My own experience with sex was, like with so many girls my age, just what I'd done myself with my fingers. It was pretty good but the way I saw my sister writhing and twisting, I knew there was lots that was better than playing with yourself.

This was even more intriguing than when they were fucking. I could just see his tongue flipping around on her and how it was making her tremble and shake. Oh, did this look hot.

I watched on and off until they began getting dressed. I quickly put the ladder under my bed and changed my panties, they were soaked along the inseam, and snuck down before they came out of her room.

"Hi, Eileen," Bryan said as they came in the kitchen where I was eating cookies and reading a book. I said hi back and saw that his hair was kind of mussed-up and that his pants were rather poked-out. But there was little chit-chat before she ushered him out the front door.

Then, she came back in and took a cookie and sat down.

"You and Bryan are pretty good friends now, huh?" I prompted.

"Um, yeah, he's a nice kid. Really knows his math. Big help," she said as she twisted the chocolate cookie apart and began to lick the filling.

"I know what you two are doing, Anna."

She looked at me, furrowing her eyebrows asking, "You do?"

"I took the vent off in my room and got up and looked in your room when you were up on him fucking him. Is he good?" I asked with a grin. It's not often that the younger sibling has the upper hand, I was loving it.

"Shit, you were watching us? From that grill up by the ceiling? How could you reach it?"

"The ladder. It's under my bed right now. You two sure have fun."

"Okay, what do you want? You want to blackmail me, don't you?"

"Not at all. I was thinking it might be fun if I could have Bryan, too?"

"You're not on birth control, are you?"

"No, but maybe you could maybe ask Mom if I should now that I'll be going to high school. When did you start?"

"High school. Um, yeah, I guess I could. I'm not on the pill, though, I get a shot every three months instead. So there's no pills to take. So you want Bryan, too, huh? He's really cute and, oh, can he give oral."

"So I saw. You really love that, don't you?"

"Just you wait, Eileen, just you wait. And he fucks like a little rabbit. He just doesn't ever stop. But I do have some condoms if you want to try them. I guess I don't mind if you join in. You'll find out just how good sex can be. My eighth-grade boyfriend is a little sex fiend, you'll see."

"Yeah, if you have condoms, yeah, I'm in. Oh, god, I never thought I'd be having sex like right now, I figured it would be sometime in high school. So, can I join you two tomorrow, is he coming tomorrow?"

"He comes every day, the boy just loves sex. He'd never done it before I asked him over. I was his first fuck ever," my sister said rather proudly.

"So, why did you pick Bryan, how did you know him?"

"I didn't. Susie Wilman's brother helps coach his soccer team and told her he's got the biggest dick he'd ever seen on a kid his age. So, when Susie told me, well, I knew I wanted to sample it. It is nice and long."

"You're a whore, big sister, simply a slut."

"Yep. You got it. But I'll tell you the kid is a fuck machine. And, unlike most boys, he's not hair-trigger, either. Even his first cum takes a long time. I can usually get off twice before he does once."

"So, I guess I'll get my chance with him tomorrow. I didn't think my first time would happen in the same room with my sister, geez."

"I'll leave if you want, I don't mind."

.... There is more of this story ...

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