Many years ago aliens had came to earth and became friends with them..but they also made a rule that humans were to suppress their urges to touch non-human species and physical touch was only for mates and mothers on ship, but a curious alien your roommate Azulon

You sat on your bed reading a book..you sat up to look at your roommate..Azulon eyes followed your movements

Azulon: "why do you humans like to..pet things?" He asked with a curious look on his face