I'm planning another nude hike at my earliest opportunity.  I have hiked in remote areas many times completely nude and love to play with my cock while hiking.  When I was younger, I stayed hard the entire time.  Now, I have to give myself more love to stay hard. I've thought about trying viagra or similar, but not sure how that works.  I would appreciate any advice.

I've been caught nude and hard many times and always find it a rush.