Jade was my best friend's older sister. She was on the netball squad and having returned from practice one evening when I was over his house, she took a shower. I went in the bathroom about half an hour later and saw her panties in the hamper. I took them out and they were still very damp with sweat and a hint of pussy juice. I held them to my nose as I jerked off in his bathroom. I put them in my pocket and kept them for future use.
Another time just my friend and I were at his house, when he had to run an errand. I crept into Jade's bedroom and found her pantie drawer. There were several thongs in there, one of which was a black sheer mesh type. I pocketed this and took it home later. That night my cock was hard at the thought of Jade wearing the thong, so I slid them on. My cock jutted out against the sheer mesh and I slowly rubbed it through the material. The friction on the underside of my cock had me pumping my jism in no time. I kept both pairs of panties for my wanking sessions.