Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa, Consensual, Incest, Brother, Sister, First, Oral Sex, Masturbation, Voyeurism, .

Desc: Erotica Sex Story: Brother and sister share an apartment at college

"What happens in this apartment, stays in this apartment," my sister said, not meaning what I wish she had meant.

"What I mean is ... I'm not going to change my lifestyle for you, okay?" Her tone softened slightly as she adjusted to my reaction. "If I want to bring someone into my bedroom, I will." She paused as if waiting for my agreement. I nodded so she went on. "If I want to parade around in my nothingness, I will. This was my apartment first." I didn't really expect her to parade around with nothing on but I wouldn't stop her if she wanted to. My sister is gorgeous.

"It was different when Meghan was my roommate," my sister explained. "Her and I would go out on Friday nights, bring guys back here, sometimes the same one." She smiled when I raised my eyebrows at her last comment. "Anyway, Sport, it all stays here, understand?"

"Absolutely," I nodded my head as I pictured Meghan and my sister doing a threesome with some lucky asshole.

"Good." She stood up and gave me a full body hug. "I'm glad you're here. Her well-developed breasts pressed against my chest and I broke the hug before my hard-on became noticeable.

"Don't worry, Sis. I'm going to be the best roommate you've ever had," I said, holding her shoulders and looking her in the eyes.

"I know you will, Luke," she smiled. "Now, off to bed, you've got a big day tomorrow. You don't want to be tired on your first day of classes."

"Good night, Jessie." I kissed my sister's cheek and headed into the bedroom that she had helped me set up earlier in the day.

Plopping down on my bed, I couldn't get the image of my sister and Meghan out of my head. Was she kidding? Did they really have a threesome?

I love my sister. I mean, really love her. She's three years older than me and I would marry her if it weren't illegal. That's the kind of love I'm talking about ... the wrong kind. She's smart, sexy, funny, and beautiful with near supermodel body. Did I mention sexy?

Of course, she didn't know any of this or she might have thought differently about us sharing an apartment. I was overjoyed at the end of last semester when Meghan moved in with her boyfriend just before I graduated. My parents, who are paying all of our expenses, told her not to bother finding another roommate since I would be attending the same college in the fall.

And there I was, living with the love of my life. Not that I expected anything to happen between us. We're brother and sister. But just being around my sexy sister every day was enough for me. I finally fell asleep while trying to imagine what it would be like if my incestuous feelings were reciprocated.

I was up early the next morning, showered and dressed before Jessie emerged from her bedroom. My jaw dropped. She wasn't kidding about parading around. My sister was rubbing sleep from her eyes as she walked towards the bathroom. And she was completely naked! Fuck!

My cock responded instantly and I stared dumbfounded as she pulled her hands away from her eyes and smiled at me. Her body ought to be on a men's magazine cover and my eyes bounced between her luscious breasts and her hairless pussy.

"What?" my sister asked when she saw my reaction. She must have thought I saw beautiful naked women everyday. "Oh, this?" She ran her hand over her smooth mound and shrugged. "Guys like it," she said sheepishly. "Don't tell mom, okay? She'd think I was some kind of slut or something."

"N-no, I won't tell," I stammered, wondering when I would ever be talking to my mother about my sister's pussy hair, or lack thereof.

"You're up early," she said. "Anxious about your classes?" she asked, moving closer to me and stirring up such lustful feelings that I could barely talk.

"Yeah," I blurted out. "I ... um..." Damn, she was just standing there naked, and completely oblivious to my reaction. "I thought I'd scope out the classrooms and lecture halls ahead of time." I managed to complete a sentence while my sexy sister was standing less than a foot from me.

"You'll be fine," she assured me as she leaned up and planted a kiss on my cheek. Her left boob brushed my arm and the electrical charge went straight to my cock. "Good luck," she said as she turned around and walked into the bathroom. I adjusted my stiff cock as I watched her firm ass cheeks undulate seductively.

Fuck! I thought she was kidding about parading around. This was going to be a hundred times better than I thought.

I made it through my first week of class without any problems, greeting my naked sister every morning and jacking off every night. Jessie was great in the kitchen and we ate dinner together each night, discussing our various classes, professors, homework and classmates.

I loved it! It was like I had died and gone to heaven until that Friday night brought my idyllic world to an abrupt halt.

"I'm going out tonight, Sport," Jessie yelled from her bedroom. "Don't wait up." I could see her through the open bedroom door as she stripped down to her matching bra and thong while she looked for something to wear.

"Where are you going?" I asked, trying to sound nonchalant while I watched her pick a coral blue dress from the closet and hold it up for scrutiny.

"Going clubbing with a couple of friends," she answered as she shimmied into the short dress. "I'd invite you, but it's over 21 only," she added as she walked into the living room, holding her shoes.

"What do you think?" she asked. I was about to tell her she looked gorgeous when she added, "bra or no bra?"

While I was still trying to process the question, she slipped the dress off her arms and unfastened her bra. My cock sprang to life as she removed her bra and tossed it on the counter. I had seen her flawless tits every day this week but I didn't think I could ever tire of the sight. She leaned slightly forward as she tucked her generous breasts inside the top of her cross-front dress.

"So?" she asked, standing with her hands on her hips. "Do my nipples show?"

"Um..." I caught my breath and accepted her invitation to stare at her breasts. "No ... I can't see your nipples." This was so fucking unexpected. It was like she didn't even think of me as a guy. Parading around was one thing, but damn.

"Great! I'd rather not wear the bra," she said, putting it back in her room. I watched as she slipped into her shoes and grabbed her purse. "There's spaghetti left from the other night," she said as she kissed my cheek. "Don't be surprised if there's a third for breakfast. If I get lucky," she laughed and headed out the door.

There was a third for breakfast both Saturday and Sunday morning. Different guys each night but a similar scenario played out. Stumbling in at about 2 a.m., giggling and shushing each other as they left a trail of clothes from the front door to her bedroom. A little while later, I was treated to the sound of my sister yelling heat-of-passion obscenities.

"Fuck! Fuck! Harder! Harder! Fuck me harder!" and so on. I covered my head, trying to block out what my sister was doing in the next room but my cock betrayed me, hardening at the sound of her orgasmic outbursts. It seemed to go on nearly half the night.

This became the pattern of our lives over the next few weeks. We would engage in normal brother and sister activity, except for the naked parading, during the week with wonderful dinner conversations and study sessions. Then, Friday and Saturday night my sister would transform into the world's most insatiable sex goddess, bringing home a succession of one-night stands. And it was always just one night, I never saw the same guy twice.

After the first couple of weeks, I stopped trying to block it out. I know it's pathetic but I started jacking off to the soundtrack of my sister's sexual exploits. I started leaving my door open a bit so I could hear her better. I was inexperienced but it seemed like she took a long time to reach an orgasm. I practiced holding off until I heard her unmistakable cries of release and then I'd shoot a huge load of cum into a tissue.

The guys usually left mid-morning and my sister would sleep half the day away before dragging herself into the bathroom to soak in a hot bath. Occasionally, she'd call me to bring her something for her hangover and I would sit on the toilet handing her headache medicine and ice water.

I constantly marveled at the contrast between this naked, well-fucked woman in the bathtub and the fresh-faced college student who I had dinner with on weekdays. They were two sides of a single coin but my involvement was relegated to one side only.

Jessie still walked around naked all week, oblivious to my perpetual hard-on, and she still asked for my advice on her sexy weekend outfits but one Saturday afternoon she took her asexual approach with me a lot farther.

She had been especially vocal the night before and slept even later than usual. Her orgasm had taken forever and I almost came before she did. It was the middle of the afternoon and Jessie was soaking in the bath when she called for me. I figured she wanted headache medicine so I got that and a glass of water before I went into the bathroom.

"That fucker bit me!" Jessie greeted me when I walked into the bathroom. "Look at these teeth marks around my nipple!" Jessie was cupping her left tit and holding it up for my inspection. I sat down the pills and the water glass before kneeling next to the tub.

Never one to let an opportunity slide by, I ran my finger over the marks on her otherwise perfect breast. It's the first time I had touched my sister's breast and my cock was straining against my jeans as I touched her smooth, soft skin. Fuck!

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Story tagged with:
Ma/Fa / Consensual / Incest / Brother / Sister / First / Oral Sex / Masturbation / Voyeurism /