If you are asking about getting aroused by watching someone else have sex, or masturbate, then Yes, it could be. Strictly speaking, however, this isn't a fetish unless it is necessary in order to achieve satisfactory sex.
Walking a mile in someone elses shoes.
I want to report immigrants using someone elses documents.
No,it is rude and illegal to rip someone elses' campaign poster.
That would be considered system tampering and result in a suspension.
take someone elses ;)
Goldilocks
yes
you touch you lips to someone elses :)
Copyright someone elses design
its when you meet someone elses mii in the 3ds
A biography
Well you can get married to someone else or you can be someone elses spouce.