I have to get the hell out of this house, I thought to myself.
I had just turned eighteen that past spring, and I was desperate to get out on my own. Only problem was, my parents insisted on me paying my share of the utilities and mortgage as long as I was not enrolled in college. That was making it very hard to save any money each month for a down payment on an apartment with my friends. The way I figured it, I had about another year before I would be ready to go, and I was chomping at the bit.
My older sister Julia, on the other hand, was a different story altogether. She was nearly twenty, and seemed perfectly content inside the bubble. She didn't really care much for action and adventure, as it were. She had a few friends that came by, but they never really did anything or went anywhere. To be honest, I'm not sure she had ever been on a date.
This particular morning, I was sitting in the living room reading a book when Julia and her friend Janie came in to watch TV. Without a word, they shuffled in and plopped down in front of the TV. There was really nothing on at this time of the morning on Sunday, but they just flipped mindlessly through the channels in search of inspiration. I went back to my book and did my best to tune it out.
However, I found it increasingly difficult to focus with the noise of the TV, and soon my mind started to wander. My sister and her friend were lying on their bellies on the floor in front of the TV. Julia was wearing an old pair of pajama pants that she had had since, well, it seemed like forever. They had originally been a pair of white pants with red polka dots, but over the years of wear and tear, the red had faded to a very light pink. It didn't help that they were so tight on her now, that the fabric was stretched to the point it made it look even more faded. If I looked hard enough, I could almost see the skin of her ass cheeks peeking through the fabric.
She laid there, and kicked her legs slowly back and forth. With each movement of her leg, her ass cheeks would jiggle just a little bit. Through the tight pants, I could see every ripple as they shook. It was almost mesmerizing. I looked away to try to break the spell and averted my glance to Janie. She had just come up the street from her house and thus was dressed in a t-shirt and jeans. She had a nice little butt on her as well, but it was a little skinnier and flatter than Julia's. Soon my gaze had been drawn back to my sister, and the full, round cheeks of her ass.
Julia turned to get up, and I hurriedly went back to my book, hoping she wouldn't notice me looking. She stood up, and walked toward the kitchen door. As she walked past me, she bent down and whispered in my ear:
"Nice bulge."
It took me a second to understand what she was talking about, but when I understood, I was mortified. I had been too lost in the moment to realize that my cock was already straining at my sweat pants. My face was instantly flushed and I felt a knot in my stomach. Not only had I gotten aroused looking at my sister's ass, she had actually caught me. And said something about it. I quickly grabbed my book and ran back to my room before she could come back from the kitchen.
I made it up to my room and shut the door. I was nearly giddy with the excitement. Strangely though, my cock was still hard despite it all. In fact, the dangerous element seemed to add to my stimulation. I knew I had to take care of business before this got out of control. So, I turned on the TV and picked out a porn movie from my burgeoning collection. I knew just the one, too, and it featured a gorgeous thick blonde who reminded me a lot of... well, Julia, to be honest. I put in the movie, removed my sweat pants, grabbed the remote, and walked over to my bed. I had just laid back on my bed when I heard the door open.
"What are you doing in here?" whispered Julia as she poked her head in the door. This was bad. Very bad. I pulled the sheet up over my crotch, stopped the movie, and threw the remote on the other side of the bed.
"I'm just... just lying down for a bit," I stammered. "I didn't sleep well last night."
"With the TV on?" she asked. "Playing static?"
"Yeah, it ... uh... helps me relax," I said. Please, let this be enough to satisfy her curiosity, I thought to myself.
But it wasn't. "You're full of shit," she said. "Let me see what you were watching."
"None of your business!" I gasped. "Just let me take a nap in peace."
"So you get a hardon looking at your sister's ass," she said, "and now you're up here watching some mystery program with your pants off. And I'm supposed to believe you were about to take a nap?"
"I don't care what you believe," I said. I was in knots by that time, almost shaking. I was just praying for this to be over. "And besides, I wasn't looking at your ass." Stupid. Just shut up.
"Oh, so you were looking at Janie's ass then," she said. "I'll just go give her the good news. Let's see how she feels about that, you little pervert." She turned to walk out of the room.
"No, no wait, don't... I mean, OK, I guess I was looking at your ass. I'm sorry," I wheezed. I wasn't sure if this was any better than the alternative, but I was terrified. I guess it was better that just my sister thought I was a creep, rather than her and her friend. "It just... I mean, it just happened. I wasn't paying attention."
She came back into the room and shut the door. "So, what are you watching in here, then?" she asked. This was only going to get worse, I knew.