Lonely Weenie: The Excitement of Being Vulnerable said
Often times while masturbating, I’ll have thoughts of walking outside totally naked, at night, with no other clothes to resort to in an emergency. I’ll walk a mile or more out, and then walk back, all the while watching for other cars or people coming by, and find somewhere to hide. Being unable to cover up makes me feel vulnerable, and that in turn excites me. I’ve done this sort of thing before, many times in fact, and found myself needing to masturbate right there, outside. more at Lonely Weenie: The Excitement of Being Vulnerable
This is incredibly exciting to me also. Especially the idea of leaving clothes behind. I’ve not done it outside, but I have a tamer experience in a men’s spa. I rent a small room and undress. Then I lock the clothes up in the room and wander around completely naked. Of course a lot of other guys are exposing as well, but most do so in the confines of their own little rooms with doors open, or else they walk around wrapped in a towel and only occasionally flash something. Only a few are totally naked and not even carrying a towel, like me. And I make a point of walking into areas where most are still partly or fully dressed. I am also lubed and masturbating openly as I walk around. But just being naked and vulnerable, no way to hide my nakedness, is excitement enough. It is such a deliciously electric experience. That is the best way I can describe the feeling: electric, a tingle throughout my body. I had the same feeling at a nude beach once. Of course others were nude as well, but still an electric excitement ran through me.

i love to leave my clothes behind, hidden way and walk in a bush were there is gays cruising and lover’s lane.i only wear black lady panties and i walk stroking my big cock. my cock show huge as it is quite big and i’m skinny and wimpy looking.not having any clothes make me feel vulnerable and very much aroused. i’m known by gays as john the wanker. i’m str8 and i only masturbate in front of them.i only had a few bad experiences but mostly are great. having 4/5 guys watching me stroke furiously tongue hanging out from side of my mouth showing masturbation idiotcy,unable to stop. great.