Yup! I used to find them while bike riding. I'd be hard as a rock in my bike shorts as I was scoffing them up for messing and jerking off in them later. Just thinking about them makes me hard.
I also get hard when I see guys in underwear, grey or white sweatpants, singlets, Lycra shorts, compression shorts, swimsuits, etc. Yesterday at the supermarket was a guy in some tight grey sweatpants. He had a nice bulge that was so obvious that I couldn't keep my eyes off of him. I managed to "shop" wherever he was to catch a view. I was so hard, I felt my cock pumping in my pants and couldn't wait to get home.
