(Relax. Everyone's over 18.)
Friday night, 11:30. My parents were out of town for the weekend. My sister Danica was out at a party. I was watching a horror movie on TV. Some psycho was slashing cheerleaders, all of them young and busty and frequently topless. I stroked my cock under my shorts as their boobs bounced, running away from the mad killer. Maybe I'd just find a porn movie--
The door opened, then slammed shut. "Hi, Trent!"
My sister Danica staggered into the living room. "Hi, Trent!" she shouted again. She was in a flimsy white blouse that weas unbuttoned almost to her waist, showing off her black bra. Her miniskirt barely reached the top of her thighs. "How ya doing?"
She plopped down on the couch next to me, kicked her high heels off, and leaned over to give me sloppy, drunken kiss. On the lips. "Whatcha doin'?"
"You're drunk." I turned the TV off. "And you're home early."
"Yeah, Susan caught me making out with her boyfriend and kicked me out." Danica laughed. "Bitch."
Danica was cute. Sexy, even. She had long legs, and she kept in shape with swimming and yoga. We didn't have a pool or anything, but anytime I saw her in a bikini at the beach or on vacation, I could see what other guys saw in her.
She was 23, in college, studying marketing--when she bothered to go to class. I'm 21, working on a degree in accounting. We've got an older sister, Madison, 29, but she doesn't live at home with our parents anymore.
I always kind of idolized Danica when I was younger. Even when she bullied me, I kind of enjoyed the attention. We were closer in age, and I could see she was pretty. She had lots of friends, stood up to mom and dad, and was really smart.
Now that we were adults, I could see that she wasn't always making the right decisions, and she was starting to coast through life on her body and her looks. I kept hoping she'd straighten herself out so she could get back to making good grades and doing something with her life. Instead she was drinking, smoking weed, barely going to class, and hanging out with the wrong kind of friends. Especially boyfriends.
Most of them were assholes. She had one boyfriend in high school who was a nice guy, but she dumped him after they graduated. After that she dated a bunch of different types, none of them for longer than a month or so. She didn't bring them home very often, but every once in a while she'd sneak someone into the house late at night, and I could hear them in her room. Groaning, moaning, slapping, laughing--and sometimes getting in screaming fights about God knows what, until my dad kicked the guy out and yelled at Danica all night, threatening to kick her out if she couldn't behave.
He never did, of course, and neither did she. Danica would calm down for a few weeks, then start the same old shenanigans again, trying to be more discreet this time, but usually making the same mistakes all over again.
At least she hadn't brought anyone home from the party tonight.
Danica leaned back and stretched her legs out. Her blouse was falling off, and I could see her boobs pushing at her bra. "Is there any beer?"
"I think you've had enough," I said.
"Oh, you're no fun. C'mon, get me a beer, would you?" She nudged my leg with her bare foot.
I groaned. "Fine." Maybe one more would put her to sleep--if she didn't throw up all over the sofa. I got one for her and another for me, and she snatched hers from my hands and guzzled half of it before I could sit down.
"So, whatcha doing?" She crossed her ankles.
"Watching a movie." I picked up the remote. "Got kicked out, huh?"
"Yeah. Stupid Susan." She laughed. "I was just making out with her boyfriend 'cause--" She stopped suddenly, looked at me, then looked away. "I was bored. And horny."
"Well, looks like you should have picked someone else. Now you're stuck with me."
"Yeah." She picked up her beer. I started the movie.
Danica reached behind her back, under her shirt, to unsnap her bra, like she wasn't thinking about it, and looked at the movie. A masked killer was watching a cheerleader get undressed, an axe in his hand.
"Yuck." Danica yawned. "You like this stuff?"
I shrugged. "You want me to change it?"
"No, this is fine." She picked up her beer again. "There are worse places to be, I guess."
Ten minutes and one dead cheerleader later, Danica was asleep. Snoring softly.
Her legs were up on the couch, and her short skirt smooth around her thighs. Her bra had slipped down, and I could see the edge of one nipple, her boobs rising and falling as she snored.
When the final cheerleader but one was dead, and the masked killer was defeated (or was he?), I turned off the TV. Danica was sound asleep on the sofa, one foot on the floor, her thighs wide enough for me to almost see her black panties.
I shook her knee. "Let's get you to bed, Dani."
Her eyes fluttered open. "Wha?"
"Bed." I stood up and reached for her hand. "Come on."
Danica giggled. "Okay. Take me to bed!" She got to her feet, leaving her blouse open, and grabbed my arm for balance. "Oh-kay." After a moment she took an unsteady step forward, and I followed her up the stairs and then down the hall to her room.
She opened the door and reached for the light switch, and lost her balance as the light came on. I grabbed at her arms to keep her from falling, and somehow the sleeve of her blouse slipped. She staggered as her blouse dangled from just one arm. I pushed her toward the bed, and she spun around to plop down on it, laughing.
I stared. By now her blouse was hanging from one wrist, and her bra dangled from her shoulder. Her tits were free, flushed and sweaty, and I couldn't help staring at them.
They were somehow bigger than I expected, even after seeing her in bikinis all my life. Small pink nipples. Her chest was flushed and sweaty, and her boobs bobbed up and down as she laughed at me for looking.
Against all my willpower, I felt my cock start to stiffen as I looked at her.
"What's the matter Tent? Never seen a girl's boobs before?" She spread her arms and leaned back, pushing her tits forward. "Take a good look! Here they are! You like them?"
I tore my eyes away and turned to the door. "Go to bed."
"Aw, you're no fun. Wait!" She stood up, yanking at her short skirt, then fell back down again. "Help me with this. I think something's stuck." She yanked at a zipper on the side.
I stood frozen. My dick was getting harder looking at her, half naked on the sheets of her unmade bed.
Danica was my sister. But fuck, she was hot.