Mine don't seem to lick their own faces that much, but other than licking DH or me, they sometimes lick each other. I mean SERIOUS deep, french-kissing kind of licking!
DH gets a little upset when they do it in front of him. I think hes afraid his "little men" may not "like the ladies as much as each other". Neo, by the way is neutered and Connor will be, too very soon!