My Sister's Bra Leads To...

I was at school one day and this girl sitting near me bent over to get something from her backpack, and as I looked in her direction. I was able to see down her shirt at her boobs and see her bra. She had to have B-cup boobs, and it was so hot to see her pink and white polka dot bra. She must have been bent over for like 5 seconds, but I was ingraining that imagine in my head and living in that moment for 5 hours. I wanted to get up and go to the bathroom to masturbate in the stall but the teacher wasn't letting any leave the class. As I walked home after school I was so horny that I couldn't keep myself under control. Since I couldn't pull out my dick and start masturbating while walking down the street, I started to get prepared for when I got home. I started to try to slide my boxers down as far as I could while my jeans were still on and decided to be daring by unzipping my pants. As soon as I got home I rushed to my room, and tore off my clothes so I could jump on my bed butt naked with an erection to be proud of. I started to grab my dick and stroke it slow to start off. As I closed my eyes I started to think about those boobs in that bra. It was so hot to remember that bra. The fact that I wasn't supposed to see her bra turned me on even more, I wanted to get more of that feeling. I remembered my mom was doing laundry before I went to school that day. I knew I had time before anyone else got home, so I jumped up out of bed still naked and ran back downstairs to the laundry room. I saw that some of the bras were still in the dryer, she hadn't taken them out to put them back in the drawers. I found one of my mom's bras. Her bra was beige, an atypical mother bra. The material was shiny and satiny, but nothing amazing. I checked out the tag on it and was surprised to see that the size was 38D. The bra was shapeless and figure less, so it was nearly impossible to see that her boobs were actually that big. Although the sight of the bra wasn't very arousing, the satiny texture in my hands felt amazing. It was a turn on to see her bra and to know that I was holding my mom's bra in my hand while I was jacking off naked in the house other than my bedroom. But I still needed something more. Something that resembled the bra that I saw at school earlier today. I rushed upstairs with my hard dick bouncing up and down with every step I took. It was so freeing to let my young dick just flap around in the breeze and not be confined to my boxers. I figured the closest way to find a bra I had in my head was to go into my sister's room. My sister Rachel is 16 years old and 5'5 feet tall. She is very slender, her boobs look pretty small, with small butt, and long legs that go on forever. She always wore her brunette hair in a ponytail. Ever since I hit puberty I have started to notice my sister and the changes that has happened to her. There are times when we are hanging out or watching a movie in the living room where I will start to sneak peeks at her and look at her boobs through her tight shirt and her nipples poking through. Times were I have looked down her shirt to barely see her cleavage, or looked up shorts to glimpse at her panties showing through the leg hole of her shorts. Sometimes I think she notices me just as I look away, or that she intentionally positions herself in my view. It's hot to see but I haven't really masturbated to that since I started masturbating earlier that year. So I go into my sister's room and even though I see her clothes laid across the room, I even see a few bras hanging off a bedpost and over a huge teddy bear in the corner. I want to touch those bras but I figure it's too dangerous since she will know exactly where they were placed since they are out in the open. But as I look at her bras I feel my dick twitch in the air. I have never been in here before by myself. And so I have to start looking through other places to find her bras. I looked through her nightstand, under the bed, and in the closet but, in the end, it was in her dresser drawers. So I start to open the drawers, I start at the bottom one and find her jeans, next one up is her pj's and workout clothes, second from the top drawer is her t-shirts and tank tops, and then finally the top drawer. As I realize this has to be the right one I slowly open it and smell the sweet smell of perfume. I pull it open ever so slowly and start to see parts of bras sticking out from the top. They are so close to my face right now, closer than ever before. These bras are just so sexy and hot. As the drawer is finally opened I take in a deep breath and enjoy this moment. As I am almost bombarded by the number bras in front of my I just reach in and grab a pink bra with some lace on straps around the sides. It was almost the same color as before but didn't have the lace from what I could see. I looked inside this one too see the finally see the size of my sisters boobs that I have been staring at for months. As I looked I was surprised to see that it was 34A. For some reason just reading the number made me even more harder and I started leaking precum. I start to feel the cups and underwire. I even took this and rubbed against my cheek to feel the texture even more. I realized that I had so many more to look at, I put the pink one back in roughly the same place I found it. I tried to fold it the way she had it, I hope she doesn't notice it. I start to rummage through the bras move others out of the way, until I can get an idea for all of the first. Then I find a black bra of hers, it's simple but still sexy somehow, and it has a pink bow in between the cups. The best part is that it's got pink and white polka dots inside the cups. It reminds me so much of the bra the girl in my class was wearing. As I looked at it and felt it I realized more precum was coming out and I need to make sure it didn't hit the floor so I used her bra and wiped it off my tip with the inside of the bra. As I look inside I see a sizable wet spot of cum right about where her nipple might be in her bra. Just at that moment, I freak out as I hear my sister come through the front door. She screams out "Hello, is anyone home?" Here I am in my sister's bedroom butt naked, with my dick hard and dripping precum, and my sister's black bra in my hand. I couldn't say anything with out running the risk of getting caught. As I frantically look around to find out what I can do I hear the doorknob turn and.... To Be Continued.