First and foremost Bender has a mouse fetish. He carries this huge stuffed mouse (as big as him) EVERYWHERE. He even brings it to bed and cuddles with it: note he has to carry the huge mouse up stairs to make it into bed!
Secondly, he has an ear fetish. He likes snuggling on your chest at night (with the mouse) and he wakes you up in the morning by licking behind your ears until they are all squeaky clean! I always say he just wants to make sure Santa comes with something other than coal