When I was growing up I felt awkward about masturbating in places other than home. I had just gotten over feeling awkward about masturbating at home too, I guess. This became a challenge when I would travel. My daily jack-off would suddenly disappear and I'd fantasize about the first thing that I'd do when I'd get home.
I realized that as an adult I have completely gotten over this barrier. As a teen I masturbated once in a friend's bathroom and once at my aunt's house. Now it seems that I'll jack off anywhere I stay. I recently went on a trip out of town. The first thing I did when I reached my destination was to strip off my clothes and walk into the bathroom with a massive hard-on. I opened the shower door and slowly tugged on my dick. I looked in the large mirror opposite the shower (a feature I don't have at home) and watched myself masturbate.
I paid close attention as my muscles would tense and relax. As I watched myself in the mirror I could sense a familiar feeling that made me feel at home. Within seconds I shot a load all over the back wall of the shower.
I turned the water on and cleaned myself off. Feeling attached to my new surroundings, I knew I could look forward to several more sessions in the same spot. Now that I'm over my teen paranoia, I'm glad I have the adult value of breaking a place in right away.