I came home from class with a good picture in my mind, I put my white thong on went to grab my cock for its one stroke and then thought to myself I should practice having actual sex so I took my softest pillow and put it on the edge of the bed. Lowering myself onto it I could feel myself go tense, I slowing slide my cock backward against the pillow and then slide my cock forward in the slick satin. I could feel the cum trying to push through the material that blocked its escape, I pushed hard as the orgasm pulsed through my body. Standing up I had left a considerable mess in my panties and on my pillow. I thought to myself you're a dirty boy and should have to stay in you dirty cum panties. I had class again in an hour so I left them on. This was a big change for me. I put my pants back on. I couldn't believe what I was planning on doing wearing my dirty cum filled thong out of not just my bed room but out of the house. What if someone sees it, what if I'm like one of those sexy college girls showing my thong off? Oh my god, what's wrong with me I'm getting hard just thinking about getting caught in my thong.
Off I went to class thong in jeans and a t-shirt. Terrified and excited, I got to class and sat down. I was there a bit early and only a few students were there so I tried to sit close to a girl that I'd seen her thong before, I quickly became interested in watching for her thong and forgot about my own. I forget what she had on I remember my hard on that happened. I leaned forward to cover over the bulge in my pants but quickly I remembered my thong, I felt back the top bit was above my jeans. Oh god I thought and quickly leaned back had anyone seen I started to panic and my dick got even harder I was about to cum. What a bad idea this was. Lean forward and cover my bulge but expose the lacy trim. Sit straight cover my thong but you could see my bulge.