When I was I think 15 or 16, it was when I was in grade 11, I had a crush on my friends sister. She was 2 years younger in grade 9. One night at a sleepover, I crept upstairs into the laundry room in hopes of snatching a pair of panties to tide me over. Sadly the dryer was empty as I was heading back I saw her door creaked open. I slowly pushed the door open and almost fell over when the motion sense night light switched on. It illuminated the room with an eerie blue glow. It was bright enough to illuminate her tipped over hamper in the corner. I tiptoed closer to the clothes but it was too dark. I went back downstairs and brought back my flashlight on my key chain thingy. With its small light I selected a couple dirty panties to play with. I stuffed them into my pockets and began creeping out when my light shone across her bed. I couldn't help but to imagine just slipping in beside her sleeping body and cuddling. She looked so cute with her blonde hair in a mess, her tight top barely holding onto her chest. She had a quiet snore. I got so aroused I pulled out my cock. I went really slowly but I ended up standing above her sleeping body jerking off with a pair of her dirty panties wrapped around the head. I carefully slipped the shaft in between her hands, then I got within inches of her mouth, her nostril air giving me a rushing feeling. I went into climax mode and started unloading inside the crotch of her panties. I leaned my head back and tried to stiffle my moans as I shot loads into the rapidly soaking material. I shone the flashlight back down to clean up when I saw a small mistake. The thong was fairly small and my load was huge, I had left a huge wet stain right beside her face on her pillow. I wished i had decided to unleash my load onto her sleeping body but I was ushing it. I slipped the soaked thong back into her clean drawer in hopes of her wearing them again, and returned back downstairs to stash her panties in my bag.