The characters in this story are both at least 18.
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My name is Bobby, and I'm 18. I'd been looking at different colleges, when I got a call from my sister, Suzanne. She's four years older than me, and we haven't seen each other in about that long, since she went away to college herself. In her call, she invited me to spend February vacation with her, and check out some of the schools around where she lives. I accepted, but not without a bit of apprehension.
You see, when I was younger, before she left, I had gotten into the habit of peeping on her. I've heard a lot of boys going through puberty do it, mostly out of curiosity. The problem is, they usually get caught at some point, and get the standard caught-ogling-your-naked-sister lecture. I, though, never got caught, and was still looking at her when she moved out. Also, as far as I know, those boys never had any "response". In my case, though, well, I...got my first hard-on looking at Suzanne, and it happened pretty much every time after.
But, I figured, it's been four years. Maybe I'm over all that. I arrived at the bus station, to find Suzanne waiting to pick me up, and immediately I felt the first twinge of doubt, as my heart started pounding the moment I saw her. She looked more or less the same as I remembered her, albeit now with a punk tattoo down her right arm, and a stud in her nose, plus her hair was now dyed black, with red streaks. My sister's always been a fan of punk rock, and many an argument erupted in our house over the way she dressed. If mom and dad saw her now, they'd both have a heart attack.
"So, Bobby, how was your trip?" Suzanne asked, once we were in her car.
"Oh, you know, pretty dull."
"Yeah," my sister joked, "travel by bus just isn't as interesting since they got rid of all the bums and junkies." We both had a good laugh at this. "So, lunch, you got anything in mind?"
"Uh, whatever's good."
We had lunch at this diner she frequented, then went on a tour of her school. Afterward, she took me back to her apartment. "Well, the TV's right there, now, if you'll excuse me I gotta change outta these sweaty clothes." This part of the country is further south, and therefore warmer, than home. She went in to her bedroom, and shut the door.
As I sat there, flipping around, this devil in my head started to speak. "Dude, she's changing in the next room. Don't you wanna have a look?" I tried fighting it, but was finally compelled to look. Needless to say, I'm very good at spying on someone undetected. I crept over to the door, and silently opened it just a crack. She was already down to her underwear, and I looked in just in time to see her reach behind her back and undo her bra, before taking it off, and there they were, just as I remembered them. Those gorgeous, large, squishy breasts of hers, with their pink nipples. My cock started to swell up immediately, as I watched them sway and bounce as she walked around. When she put a new t-shirt on, I silently shut the door, and sat back down. As my sense returned, it dawned on me what just happened. I had just slipped up. I was starting to realize acting normal around my sister was going to be harder than I thought. About this time, Suzanne returned.
