I have a sister that's a year older than I am. While growing up we were never exactly close. I always thought she was kind of a spoiled, selfish, and mean spirited little bitch who was always picking on me and always seemed to get whatever she wanted. By the time I was 15 my sister had fallen in with the wrong crowd at school and it seemed like she went from being a prissy little bitch to a skanky bad girl practically over night. She started dressing like a total slut and sneaking out at night to go to parties, where she'd drink and do drugs with her friends. As ashamed as I am to admit it, it was around this time that I started to develope a strange hatred/lust towards my own sister. I know that sounds sick and I'm not quite sure how it all started, but at that time in my life my hormones were going wild and without any other outlet for my desires, it was sometimes hard not to notice how attractive my sister was in a very skanky kind of way. Especially when she pranced around in all of those slutty outfits with her boobs popping out and her tight jeans riding so low you could see her thong poking out in the back. Sadly, my sister was one of those girls who were extremely attractive and not only knew it, but used it to her advantage to get what she wanted. She had long wavy black hair, light blue eyes, nice curvy hips, and incredibly huge tits, which she flaunted every chance she got.

No matter how much I hated her, at the same time I was increasingly disturbed by these overwhelming feelings of unnatural lust that I felt towards her. More and more I'd find her creeping into my thoughts as I lay there masturbating, leaving me feeling very guilty afterwards. I'd also sneak into her bedroom on a regular basis while she was gone and I'd develope a huge hard on as I snooped through her stuff, especially her underwear drawer. I'll never forget the time that I peered underneath her bed and found a back massager hidden there. I knew exactly what she really used it for and after finding it I couldn't help but lay there on her bed jerking off as I pictured her pleasuring herself with it. As I came I blew my load into a pair of her panties that I'd stolen from her dirty clothes basket.

Back in those days after taking a shower she'd often come out of the bathroom wrapped in nothing but a towel as she headed to her bedroom to get dressed, which would always drive me wild. I'd also overhear a lot of the guys at school bragging on a regular basis about how they banged my sister last night in the back seat of their car. So every night after she'd sneak out I'd often lay there in bed jerking off as I imagined how my sister was probably getting fucked that very moment. I couldn't count how many times I came to the thought of my sister screaming in ecstasy in the back of someone's car with her huge, bare tits bouncing up and down as some jock or stoner hammered his enormous cock in and out of her pussy.

In the years since then a lot has changed. I'm 28 now, married, and have become a fairly successful architect. My sister, on the other hand, has a crappy little studio apartment, is living on wellfare and is heavily addicted to crack. So far she still has her looks though and still pretty much uses those to get whatever she wants out of men, which is mostly drugs. About a month ago I recieved a call from her from jail asking if I could come down and bail her out. Apparently, she was arrested for soliciting prostitution in order to pay for her habit, which is a new low for her. As soon as I showed up, it was sad to see her like that. She was already shaking a little as the first signs of withdrawal kicked in. The first thing I did was drive to the nearest park, where I stopped and turned off the engine so I could try to talk a little sense into her. As soon as I did, she was already begging me for money as her shakes continued to get worse. I refused to give her anything as she tried all of the same old lines on me about how she just needed one more fix, then she'd quit, honest to god. Finally, as a last resort she looked at me and said, "I'll give you a blowjob." I was absolutely shocked. My own sister was so desperate for drugs that she was actually offering to give me a blowjob. I didn't know what to say to that. "I'm not kidding," she desperately begged in response to my silence, "I'll suck your fucking dick, I swear to god. Just please, I really need this."

Although I'm not proud of it, I actually found myself saying okay as all of those lusty feelings from highschool came flooding back. "Really??" she said, just as shocked as I was.

"Yes, really," I said, unbuckling my seat belt. There was an awkward silence as I unzipped my pants and pulled out my cock. I could tell she felt very uncomfortable, but I continued on anyway. "Go ahead," I said, placing my hand firmly on the back of her head as I guided her down into my lap. It felt like heaven as she wrapped her lips around my cock and began to suck. "Oh, baby," I remember whispering as I ran my hand down her back to the point where her thong peeked out of her daisy dukes, then I slipped my hand down the back of her pants and rubbed her bare ass. I couldn't believe this was really happening. As my cock finally erupted she tried to pull away, but I held her head down, forcing her to swallow every last drop of my cum as I enjoyed the sensation.

She had a disturbing look of guilt on her face on the way to her place and neither of us said much. After reaching our destination, I gave her her money and she got out of the car without saying a single word. I felt extremely guilty afterward for what I'd made my sister do just to satisfy my own lust.

About a week later she called me all strung out, asking if she could borrow some money and swearing that she'd pay me back like usual. The guilt over what I'd done last time was still eating away at me, but I told her I'd swing by there after I got off work. I honestly intended to have a talk with her this time about turning her life around. Later on after stopping by her place, the second she answered her door there was an automatic awkwardness hanging in the air that we both tried to ignore and pretend like it wasn't there. "Like I said, I just need to borrow a little money for some groceries and stuff," she said very nervously. "I'll pay you back, I swear." Of course, I knew she was lying.

She was wearing tight jeans and a very low cut tanktop that really showed off her massive cleavage. I found myself staring at her chest and the guilt over what I'd done the last time I saw her instantly returned. "Listen," I said, "There's something I wanted to talk to you about." She automatically went on the offensive as she knew what was coming next. We sat there arguing for a while as I tried to convince her that she needed to turn her life around and she insisted that she was clean and just needed to borrow a little money.

Before long she had once again to the point of begging and before I knew it my guilt flared up again as she actually came out and said, "I'll do anything for you, just please don't ask me to do what I did last time. That just didn't feel right with you being my brother and all." She suddenly looked so helpless and pathetic as she stood there begging and I felt like the lowest piece of scum on earth as a touch of my adolescent lust returned. She must have noticed me staring at her breasts, because all at once she came out and said, "I'll show you tits." She paused nervously. "You can even touch them if you want to, but that's it."

All of the lust that I'd felt for her bustiness as a teenager suddenly came back to me as I remembered how I used to root through her dresser drawers just to get a look at her D-cup bras as I jerked off to the thought of her boobs. Once again I was shocked to find myself agreeing as she nervously led me over to her bed. She sat down on the bed, slipped her tanktop off, then hesitantly removed her bra, allowing me to catch my first actual glimpse of my sister's bare breasts, which I'd fantasized about so many times as a teenager. She just sat there nervously with her boobs exposed to the world as I sat down next to her and gently placed my hand on one of her breasts. She gasped a little as my hand touched her boob. I reached up and placed my left hand on her other boob and began to gently massage them as she closed her eyes. I bent down, placed my mouth on one of her nipples and began to suck, drawing another shocked gasp from her. I'd never been more turned on in my life as I sucked on my sister's tits.

I leaned up and kissed her neck. "Don't," she said, but I tried it again anyway. "Seriously, don't!" she said louder this time as she swatted me away. "That's just weird," she told me as if letting her brother suck on her tits wasn't weird enough.

"Do you want your money or not??" I suddenly found myself asking her while feeling like the world's biggest douche bag at the same time, "Cuz I can just leave if you really want." She just closed her eyes again without saying anything. I continued to kiss her neck as I fondled her tits, slowly making my way up to her lips. She kept her lips tightly clenched as I kissed them. Then, slowly, they loosened up before finally parting and accepting my tongue into her mouth. We sat there making out for a while before my hands slowly ventured down her breasts and started to undo her jeans.

"No," she said, quickly pushing my hands away.

"I'll double the money," I told her. "Come on, I just want to eat you out. That's all."

"That's all??" she asked.

"That's all," I assured her. She hesitated then she laid back as I removed her jeans. She was wearing a black, lacy thong underneath, which I quickly pulled off, revealing the neatly trimmed landing strip of pubic hair just above the lips of her pussy. I spread her legs open and buried my face between her thighs. She let out a sudden moan as my tongue caressed her clit. I couldn't help but think to myself, "That's my girl. You know you like that." Her moans continued to increase and her legs began to quiver as she came closer and closer to climaxing until she finally came, letting out a loud scream.

I could barely contain my raging hard on as I climbed on top of her and unzipped my pants. "Don't," she said breathlessly as she tried to push me away, but she didn't struggle too hard as I easily pushed her arms away and inserted my cock into her open pussy. Suddenly her struggles stopped altogether and instead turned to moans of pleasure as I ran my cock in and out of her. Her enormous tits bounced wildly as I fucked her and her moans quickly turned to screams of "Yes!" I pulled my cock out of her just in time as it erupted, pumping cum onto her belly while she lay there breathing hard.

Afterward, I paid her her money and went home feeling completely satisfied, without the least bit of shame like I'd felt the last time. For the last few weeks I've been stopping by her apartment on a regular basis to pay her for sex. I know that's a sleazy thing to do, treating my own sister like a prostitute and supporting her habit in order to support my own lusts, but it gets easier and easier every time.