My parents used to rent out a house that was on the same block as our own home. Anyway, we ended up renting to this very good looking young lady (she was maybe 27, tall, big tits). Well, one morning, i was looking out my window, spying on her (I always did this when i got the chance. i had a good view of her house from my house.) She was outside working on her yard or whatever and i could see she was wearing this tight fitting dark top (her tits looked nice and big) and these semi-see-through white workout pants. I had seen her frequently as she lived basically next door and I had kind of developed a little crush on her. I mostly just jacked off while thinking about her, but never acted on anything more than that. As i was watching her working outside, she went to bend down and pick something up. Her backside was to me and as she bent over, i could see the outline of a dark colored thong that she was wearing underneath. At this point, my heart was racing, just the sight of her underwear was making me hot. I kept watching her closely thinking that I would just go beat off to her once she went off to work. Well, she eventually went in to get ready for work or whatever. Then the thought hit me. What if i waited for her to leave, then sneaked over and got a hold of her panties. A little while later, the front door opened, she stepped out and into her car and was off to work. I went and grabbed the key to her house (we had a spare since my parents owned the place) and made my way to her front door. I unlocked it and went inside. I figured i would make my way to the bathroom looking for her hamper and if no luck, would check her bedroom. Now at this point, my heart is beating out of my chest and i was nervous as hell. I went into the bathroom and saw her hamper there. I opened the lid. And much to my amazement, there sitting on top was her white workout pants with the black thong she was just wearing loosely balled up in them. I immediately grabbed the thong, put it in my pocket, left out the front door, locked it and headed straight to my room. I closed my bedroom door, pulled her panties out of my pocket, then took off my pants and sat on the edge of my bed. With both hands, i took the thong, held it out and inspected the front where it rubbed against her pussy and the actual thong portion that rubbed up against her butthole. i could see a little bit of like white crust. i brought the panties to my face and took a deep whiff. The smell was amazing. it smelled a little sweaty, kinda musty with a little smell of ass on the back. My penis was throbbing. I couldn't hold back. i took my hard cock in one hand and held her worn thong to my nose with the other. i inhaled deeply as i jacked off. I had to slow down though cause i was gonna shoot my wad, but i wanted to keep smelling her pussy and ass before i came too quickly. Well, i eventually had to come and right as i was about to, i inhaled deeply smelling the fabric that was just touching her pussy and ass minutes ago. I shot a huge creamy wad. It was heaven.