I stole my dads lingerie and used it as a cum sock

I used to sleep over my dads place one week out of every month and he always made sure to have new pairs of underwear laid out on my bed. I assumed he just wanted me to have my own stuff at his place so I never thought anything of it. I found the packaging one day and my name was on it. He had been buying me lace panties since I was 8. He'd buy me a couple pairs every month and I'd just bring them back to my moms house after my visit was over. I'd give them back to him the next time I visited and he'd buy more. I never even had to wear them. I didn't like the feeling so I'd just put a pair in my suitcase and pretend I forgot about it when I came back.<br><br>But I started keeping them around when I turned 13. I'd wear them to school once in awhile but it was after I turned 14 that I realized why I'd like them so much. My dad bought me a new pair and I didn't have a chance to wash them before I had to leave for school. Class went normally that morning but during lunch I started getting this warm feeling in my crotch. It was like I was floating and I couldn't focus on anything. I went to the bathroom after lunch and found out my underwear was soaked in discharge. It was so much it was leaking into my jeans. I felt embarrassed so I went home early.<br><br>I got home and laid in bed for awhile. I didn't even take my boots off. I just kept thinking about how good I felt with dad's underwear on and all this fluid dripping into my jeans. I started rubbing my crotch and I felt even better. I rubbed so hard I got this intense pleasure, kind of like a cramp but it felt amazing. I didn't even know what I was doing. I'd never masturbated before and didn't know what cumming felt like. But after that I made sure to wear those underwear every day.<br><br>I'd save the fluid soaked underwear and bring them with me to my dads place. He'd buy me more before I left but I'd take the soiled ones from the last week, tie them up in a knot, and whack off in them. I'd make sure to get as much in as I could, then I'd put my underwear back on and lay them out for my dad. I felt so ashamed of myself for doing that but I couldn't help it. I'd do it almost every time I went to my dads.