My freshman year in college, I was in my 8am. math class. Zoned out and looking down at my notes. Noticed the skater boy next to me had a bulge in his jeans. To my amazement, I saw it move and his cock started to get hard. I watched as it trailed down his left leg. When it stopped moving, I could see the outline of the head of his cock. He saw me staring, shifted and covered his crotch with his notebook.