It started out like a normal Friday, went to work, put up with stupid 
shit, and finally got home to my weekend off. I didn't have a whole lot 
planned yet, but thats how it usually went, spur of the momet shit.  When i 
got home I changed out of my grungy work clothes and into my boxers, which I 
frequently wore around the house, even if there were other people home, which 
there wasn't. I jumped into the shower, was in for about 10 minutes, then 
proceeded to towel off.  Right about then it got weird. Suddenly there was a 
knock at that door.
"Yea"? I asked.
"Justin I need to use the shower, I gotta get going." It was my sister, 
Julie. She must mave showed up while I was showering.
"Well whats the hurry?" I asked.  "Well I'm not really in a big hurry, but I 
know Im gonna do somthin tonight, so I wanna get ready now."
"Ok, Ok." I was about to leave when I remembered I still had to shave. "Hold 
up jules, I'm not done yet, you'll have to wait. I still have to shave."
"Shit", she said. "Well can't I shower while you shave, it'll save time. 
We'll both get done at about the same time." she pleaded.
Thats kinda a weird situation I thought. "Well I guess so" I finally answered.
    With that I opened the door, and she walked in wearing just a towel. I 
started to shave, and she turned the water on. I wasn't really paying much 
attention to her, I had no desire to see her nude or showering, I mean she 
was my little sister. Although, seeing her in that towel I could tell that 
she had really grown up from the last time I bothered to notice. She was 18,  
Had golden blonde hair, and was finally getting rid of that baby fat, so to 
say. I glanced at her in the mirror, she kept testing the water, getting it 
to the right temperature. Actually she was kinda skinny now. Right about then 
she turned around and BOOM, hello titties. That towel was barely holding them 
puppies back. She musta been a DD at least. Then I really started to take 
some notice in her. Her skin was nicely tanned, but not to much, just how I 
liked actually. Then I realized I had totally stopped shaving to check her 
out, so I caught myself and started up again. Out of the corner of my eye I 
saw her enter the shower, finally, and throw the towel over the railing. That 
was the first time I ever took notice in the color of the shower curtain. 
Unfortunately is was white, not clear, like I was hoping. With that I tried 
to concentrate on shaving and let my cock get back down to normal. Wait a 
minute, she gave me a fucking hard on. Damn I gotta watch what I'm doing here.
I got myself back to normal, then was just about finished when she spoke up. 
"So, what u got planned tonight justin?
"Not a whole lot yet, but I always find somthin. Most likely end up over at 
Janine's (my girlfriend)", I replied. "What about you?" "Like I said earlier, 
nothin concrete yet." she said. Yea dumbass, she already said that. Why am I 
so nervous? Shit just finish up, I thought. A few minutes later she turned 
off the water. I guess without thinking she pulled open the curtain, then 
grabbed her towel. I could see in her eyes that she realized what she had 
down, but just played it off and covered herself up with the towel. It wasn't 
quick enough though, I got a very good look. And, I wanted to see more. Her 
body was damn near perfect. It was only a 3 second look, but I could tell she 
had been trying pretty hard to thin out. And those tits. Seeing them without 
a towel was a helluva lot better. They were nice and perky, and a lot more 
than a handful. My cock was poking out of my boxers big time now,  I have 
never seen tits that big in real life. I had always wound up with petite 
girls, so I never got to revel in my love of big tits. Janine had a nice 
figure, and actually had the biggest pair I had come across in a girlfriend 
at a nice and perky 36c. Julie had it all though. The small frame, the big 
tits, I wanted to fuck her right there. Once again though, I calmed myself 
down. 
"Ok, I'm done, the bathroom is yours." I told her. "Thanks,"  she said. "Like 
I said, just about the same time." Yea, no coincidence there I thought. I had 
to get out of there before I got too wild. I was always outgoing, and never 
had a problem approaching women, but shit, it was my sister. I didn't want to 
try anything I would regret, plus, I knew it was wrong. I got out of the 
bathroom, still hard as hell, and decided to work out my aggression. I went 
into the den/weight room, still in my boxers, and hopped on the bench press. 
I had been working out for about 6 months now, and was developing a pretty 
nice body. I was about 175, 6'0, and wasn't built, but definitely toned. I 
picked up the bar, not even sure how much weight was on it, and started 
pushing it up and down. I couldn't get that bitch out of my head though. 
Maybe she will walk by and notice my body, I thought. I was past the part of 
convincing myself to think otherwise. If she were to ever want me, I couldn't 
hold back. But, on the other hand, I would never make a move. But that 
doesn't mean i wouldn't let her get a a good look at the goods. Why was I so 
horny anyways? Oh yea., I thought. Janine hasn't given it up in months. Shit 
its been about a month and half now. Usually I would masturbate, not sure 
what has held me back.
I placed the bar back on the rests and sat up, I probably got in 20-30 reps 
without thinking about it. What was she still doing in there? I picked up the 
curls bar, once again not noticing how much weight was on it. I went at it 
quickly again, not counting,  just thinking. Bringing the bar to my chest and 
down again. Jules got me more worked up than I had thought. Then, as if right 
on cue, she walked by, then walked back, getting a double take. She looked at 
me in amazement. "Whoa, I had no idea you had gotten so big." she excalimed.  
I smiled at her. "Yea, been at it for about 6 months now, you like?" I asked. 
"Um, yea, you look great." she said, still starring.
I put down the bar and walked over to her. I flexed for her, and asked her to 
feel my arm. She reached out and gave it a squeeze, smiling. "Wow, your 
strong. I like muscles." She sounded like she was 10 the way she was in such 
awe. "Well hey, check you out, you've got a pretty nice body too." I said. 
"Really?" she asked. "Did you see me when I opened the shower curtain?" Time 
to fess up I thought. "Yea sorry," I said, "I couldn't help it, normal male 
reaction I guess. When we see a hot nude girl we have to look." I said, 
looking at her deeply. She smiled and said, "No shit? You think so"? "Yea, no 
kidding. And where did those tits come from? I had no idea they were that 
big. How big are they anyways?"
She smiled again and cupped them through her towel. "36DD."   "Your kidding!" 
I said. Let me see." Without hesitation she opened up her towel and let me 
look again. I was extremely surprised at how she just opened up her towel at 
my demand. She was about to close it when I reached out and grabbed one, 
groping it. She looked surprised but didn't say anything. "Sorry, but I've 
never seen or felt one this big before, I thought I should seize the moment." 
"Its ok," she said smiling, I know they're big, I understand, I kinda like 
the attention." Then I pulled back, and at the same time realized I might 
have just blown it by pulling away. She covered up again and said," So you 
gonna be working out for awhile?" I am now I thought. She wants to watch, 
didn't blow it. "Yea, I was just getting started." I told her. "Ok I'll be 
right back" she said. I went back to my curls and within minutes she ran back 
in, wearing a tight sports bra and spandex pants. My jaw almost dropped. She 
might as well have been naked, that outfit left nothin to the imagination. I 
set down the bar and went back to bench press. I got under it and started to 
lift, and I asked," I didn't know you worked out." "Um yea, I have only been 
doing it for about a month or so though."  she said. I kept lifting, and she 
sat at the end of the bench, almost between my legs, and started to lift a 
10lb weight with her right arm. I put the bar back and sat up, tired of 
working out and ready to make a move. I moved up right behind her, my 
semi-hard cock up against her back. I put my hands around her waist and my 
head on her shoulder. "Not bad, how many can u do?" She picked it up one more 
time and set it down. "About that many." she said. She reached up and pulled 
her hair back from the side I was on. My hands started to roam, both right up 
underneath her breasts, on her stomach. She didn't make any attempt to move 
them, so with that I reached up and cupped her breasts, pushing my growing 
cock into her back at the same time. I looked across the room at the mirror 
and saw a smile on her face. MMMM perfect, I thought. Still looking in the 
mirror, I pulled off her top and started to play with her nipples. I started 
kissing her neck while my hands got a work out on her giant breasts. "I could 
do this all day." I said. "I hope thats not the only thing you can do all 
day." she said seductively. "Wow I had no idea you were so sexual jules. So 
tell me, who else has had the pleasure of feelings these?" I asked, still 
feeling her breasts. "Oh just Scott, but he would have came in his pants by 
now." she said. I kept shifting my eyes from the mirror to just straight 
down, still not beliveing how nice they are. "Well is that all you did with 
him?" I asked. "Well no." she confessed. I gave him a blowjob once." "Oh 
really?" I asked, wanting to hear more. "It was nothing special, he started 
to cum just about when I put my mouth on it!" she exclaimed laughingly. "Well 
how about I show you how its supposed to work?" I asked. I pushed her off of 
the bench and told her to turn around. I slid out of my boxers and sat back 
down on the bench, holding my cock, not quite all the way hard. She got on 
her knees in front of me and gave my cock a lick. Her hand replaced mine, and 
my cock parted her lips. Her head started to bob up and down in my lap, she 
was taking in all of it. I was never that good at lasting very long on a 
blowjob, but with something to prove this time I managed to last about 10 
minutes. She didn't have much technique, after she got it slick enough she 
continued to just pull it in and out. It was pretty damn good though. I 
started to shoot and the first shots hit the back of her throat.When she 
tasted that I was cumming she took her mouth off of my cock  and pulled back 
inches from my spewing cock. Shot after shot hit her mouth and face, finally 
I stopped shooting and she put her mouth back on the head and sucked the rest 
out of it. "MMMM nice cock suckin sis. I never thought i'd ever say that" I 
said laughing. "Shit you did much better than Scott did."she said. With that 
she smiled and stood up. She slid out of her spandex shorts and pulled off 
the sports bra as well, then pushed me onto my back on the bench. My cock was 
still somewhat hard, and she sat on my lap with my cock rubbing her stomach. 
I reached up and started to feel those heavy hangers, enjoying every inch. 
"Damn you can't get enough of my tits can you?" she said smiling. "Sis, I 
told you, they are the nicest I have ever felt, I can't get my fill of em." I 
answered. She leaned over me and let them hang in my face. I started sucking 
on the right one while I felt up the left. After about 10 minutes of this I 
got my fill again of her breasts, and practically sucked her  nipples right 
off. Needless to say my cock was hard again, so I pushed her off. I told her 
to switch places with me, and she got on the bench. She reached down and 
grabbed her ankles, and then amazingly pulled her legs up over her head. "Oh 
my god" I said. "Did you forget that I was a gymnast brother?" she said. Not 
wasting any time, I grabbed my cock and started to rub it on her wet cunt. 
She must have liked the breast play, she was pretty wet. I worked it in, and 
started to slowly pull it in and out. I put my hands along her thighs and 
crammed her cunt with my cock. I was pounding her harder and harder. moving 
faster with each thrust, picking her off of the bench. She started moaning 
softly, approaching orgasm rather quickly. The moaning made me go even 
faster, and she almost broke into a scream when I pushed deeper.. She finally 
started to orgasm, throwing her head back and closing her eyes. I kept 
pumping her full of my cock until she finally calmed down, then I pulled out 
and came again. I stroked it onto her tits and stomach, then I finally 
stopped cumming as well. I leaned over her and put my hands on her tits 
again. breathign heavily. "Jules that was, without a doubt, the best fuck I 
have had." I told her. She smiled and nodded, then said "Agreed." "I'm glad 
you decided to join my workout. Ever since the shower I was needing to 
release some tension." I confessed.
"Yea I know. You think I would have showered with you in there if I didn't 
need it either? I was just trying to get you going." she said slyly. "You 
little scammer. I had no idea. But that is one scam that I don't mind being a 
part of." I replied. "Hey from now on you can just tell me, ok?" "Ok, you can 
do the same. Wait, are you already done?" she asked. I smiled. "Hell no, I' 
haven't even begun to fuck you." With that I turned her over, and as if she 
was reading my thoughts she arched her ass into the air and spread her legs. 
"I've never tried it like this before." she said, smiling, like always. I 
pushed my cock into her again, picking up at a good pace. I leaned my head 
back with pleasure, not believing how the day was ending. Only one thing kept 
running through my mind, over and over. TGIF:)